Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts
Identifieur interne : 001E11 ( Istex/Corpus ); précédent : 001E10; suivant : 001E12Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts
Auteurs : Joseph Hui ; Peter Frischmann ; Chien-Hsin Tso ; Carl Michal ; Mark MaclachlanSource :
- Chemistry – A European Journal [ 0947-6539 ] ; 2010-02-22.
English descriptors
- KwdEn :
Abstract
Schiff base macrocycle 1, which has a crown ether like central pore, was combined with different alkali‐metal and ammonium salts in chloroform, resulting in one‐dimensional supramolecular aggregates. The ion‐induced self‐assembly was studied with solid‐state NMR spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). It was found that the lengths and widths of the superstructures depend on the cation and counteranion of the salts. Among the salts being used, Na+ and NH4+ ions with BF4− ions showed the most impressive fibrous structures that can grow up to 1 μm in diameter and hundreds of microns in length. In addition, the size of the fibers can be controlled by the evaporation rate of the solvent. A new macrocycle with bulky triptycenyl substituents that prevent supramolecular assembly was prepared and did not display any nanofibers with alkali‐metal ions in chloroform when studied with TEM.
Url:
DOI: 10.1002/chem.200902712
Links to Exploration step
ISTEX:1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title><author><name sortKey="Hui, Joseph" sort="Hui, Joseph" uniqKey="Hui J" first="Joseph" last="Hui">Joseph Hui</name><affiliation><mods:affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</mods:affiliation></affiliation></author><author><name sortKey="Frischmann, Peter" sort="Frischmann, Peter" uniqKey="Frischmann P" first="Peter" last="Frischmann">Peter Frischmann</name><affiliation><mods:affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</mods:affiliation></affiliation></author><author><name sortKey="Tso, Chien Sin" sort="Tso, Chien Sin" uniqKey="Tso C" first="Chien-Hsin" last="Tso">Chien-Hsin Tso</name><affiliation><mods:affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</mods:affiliation></affiliation></author><author><name sortKey="Michal, Carl" sort="Michal, Carl" uniqKey="Michal C" first="Carl" last="Michal">Carl Michal</name><affiliation><mods:affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</mods:affiliation></affiliation></author><author><name sortKey="Maclachlan, Mark" sort="Maclachlan, Mark" uniqKey="Maclachlan M" first="Mark" last="Maclachlan">Mark Maclachlan</name><affiliation><mods:affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: mmaclach@chem.ubc.ca</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95</idno><date when="2010" year="2010">2010</date><idno type="doi">10.1002/chem.200902712</idno><idno type="url">https://api-v5.istex.fr/document/1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001E11</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001E11</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title><author><name sortKey="Hui, Joseph" sort="Hui, Joseph" uniqKey="Hui J" first="Joseph" last="Hui">Joseph Hui</name><affiliation><mods:affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</mods:affiliation></affiliation></author><author><name sortKey="Frischmann, Peter" sort="Frischmann, Peter" uniqKey="Frischmann P" first="Peter" last="Frischmann">Peter Frischmann</name><affiliation><mods:affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</mods:affiliation></affiliation></author><author><name sortKey="Tso, Chien Sin" sort="Tso, Chien Sin" uniqKey="Tso C" first="Chien-Hsin" last="Tso">Chien-Hsin Tso</name><affiliation><mods:affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</mods:affiliation></affiliation></author><author><name sortKey="Michal, Carl" sort="Michal, Carl" uniqKey="Michal C" first="Carl" last="Michal">Carl Michal</name><affiliation><mods:affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</mods:affiliation></affiliation></author><author><name sortKey="Maclachlan, Mark" sort="Maclachlan, Mark" uniqKey="Maclachlan M" first="Mark" last="Maclachlan">Mark Maclachlan</name><affiliation><mods:affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: mmaclach@chem.ubc.ca</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Chemistry – A European Journal</title><title level="j" type="abbrev">Chemistry – A European Journal</title><idno type="ISSN">0947-6539</idno><idno type="eISSN">1521-3765</idno><imprint><publisher>WILEY‐VCH Verlag</publisher><pubPlace>Weinheim</pubPlace><date type="published" when="2010-02-22">2010-02-22</date><biblScope unit="volume">16</biblScope><biblScope unit="issue">8</biblScope><biblScope unit="page" from="2453">2453</biblScope><biblScope unit="page" to="2460">2460</biblScope></imprint><idno type="ISSN">0947-6539</idno></series><idno type="istex">1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95</idno><idno type="DOI">10.1002/chem.200902712</idno><idno type="ArticleID">CHEM200902712</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0947-6539</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Schiff bases</term><term>coordination polymers</term><term>electrostatic interactions</term><term>hierarchical assembly</term><term>macrocycles</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Schiff base macrocycle 1, which has a crown ether like central pore, was combined with different alkali‐metal and ammonium salts in chloroform, resulting in one‐dimensional supramolecular aggregates. The ion‐induced self‐assembly was studied with solid‐state NMR spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). It was found that the lengths and widths of the superstructures depend on the cation and counteranion of the salts. Among the salts being used, Na+ and NH4+ ions with BF4− ions showed the most impressive fibrous structures that can grow up to 1 μm in diameter and hundreds of microns in length. In addition, the size of the fibers can be controlled by the evaporation rate of the solvent. A new macrocycle with bulky triptycenyl substituents that prevent supramolecular assembly was prepared and did not display any nanofibers with alkali‐metal ions in chloroform when studied with TEM.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Joseph K.‐H. Hui</name><affiliations><json:string>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</json:string></affiliations></json:item><json:item><name>Peter D. Frischmann</name><affiliations><json:string>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</json:string></affiliations></json:item><json:item><name>Chien‐Hsin Tso</name><affiliations><json:string>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</json:string></affiliations></json:item><json:item><name>Carl A. Michal Prof. Dr.</name><affiliations><json:string>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</json:string></affiliations></json:item><json:item><name>Mark J. MacLachlan Prof. Dr.</name><affiliations><json:string>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</json:string><json:string>E-mail: mmaclach@chem.ubc.ca</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>coordination polymers</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>electrostatic interactions</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>hierarchical assembly</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>macrocycles</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Schiff bases</value></json:item></subject><articleId><json:string>CHEM200902712</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><qualityIndicators><score>6.752</score><pdfVersion>1.3</pdfVersion><pdfPageSize>595.276 x 841.89 pts (A4)</pdfPageSize><refBibsNative>true</refBibsNative><abstractCharCount>974</abstractCharCount><pdfWordCount>5472</pdfWordCount><pdfCharCount>30535</pdfCharCount><pdfPageCount>8</pdfPageCount><abstractWordCount>146</abstractWordCount></qualityIndicators><title>Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title><genre><json:string>article</json:string></genre><host><title>Chemistry – A European Journal</title><language><json:string>unknown</json:string></language><doi><json:string>10.1002/(ISSN)1521-3765</json:string></doi><issn><json:string>0947-6539</json:string></issn><eissn><json:string>1521-3765</json:string></eissn><publisherId><json:string>CHEM</json:string></publisherId><volume>16</volume><issue>8</issue><pages><first>2453</first><last>2460</last><total>8</total></pages><genre><json:string>journal</json:string></genre><subject><json:item><value>Full Paper</value></json:item></subject></host><categories><wos><json:string>science</json:string><json:string>chemistry, multidisciplinary</json:string></wos><scienceMetrix><json:string>natural sciences</json:string><json:string>chemistry</json:string><json:string>general chemistry</json:string></scienceMetrix></categories><publicationDate>2010</publicationDate><copyrightDate>2010</copyrightDate><doi><json:string>10.1002/chem.200902712</json:string></doi><id>1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95</id><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api-v5.istex.fr/document/1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api-v5.istex.fr/document/1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api-v5.istex.fr/document/1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>WILEY‐VCH Verlag</publisher><pubPlace>Weinheim</pubPlace><availability><p>Copyright © 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</p></availability><date>2010</date></publicationStmt><notesStmt><note>Natural Sciences and Engineering Research Council</note><note>NSERC</note><note>UBC</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title><author xml:id="author-1"><persName><forename type="first">Joseph K.‐H.</forename><surname>Hui</surname></persName><affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</affiliation></author><author xml:id="author-2"><persName><forename type="first">Peter D.</forename><surname>Frischmann</surname></persName><affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</affiliation></author><author xml:id="author-3"><persName><forename type="first">Chien‐Hsin</forename><surname>Tso</surname></persName><affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</affiliation></author><author xml:id="author-4"><persName><forename type="first">Carl A.</forename><surname>Michal</surname></persName><roleName type="degree">Prof. Dr.</roleName><affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</affiliation></author><author xml:id="author-5"><persName><forename type="first">Mark J.</forename><surname>MacLachlan</surname></persName><roleName type="degree">Prof. Dr.</roleName><email>mmaclach@chem.ubc.ca</email><affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</affiliation></author></analytic><monogr><title level="j">Chemistry – A European Journal</title><title level="j" type="abbrev">Chemistry – A European Journal</title><idno type="pISSN">0947-6539</idno><idno type="eISSN">1521-3765</idno><idno type="DOI">10.1002/(ISSN)1521-3765</idno><imprint><publisher>WILEY‐VCH Verlag</publisher><pubPlace>Weinheim</pubPlace><date type="published" when="2010-02-22"></date><biblScope unit="volume">16</biblScope><biblScope unit="issue">8</biblScope><biblScope unit="page" from="2453">2453</biblScope><biblScope unit="page" to="2460">2460</biblScope></imprint></monogr><idno type="istex">1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95</idno><idno type="DOI">10.1002/chem.200902712</idno><idno type="ArticleID">CHEM200902712</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2010</date></creation><langUsage><language ident="en">en</language></langUsage><abstract><p>Schiff base macrocycle 1, which has a crown ether like central pore, was combined with different alkali‐metal and ammonium salts in chloroform, resulting in one‐dimensional supramolecular aggregates. The ion‐induced self‐assembly was studied with solid‐state NMR spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). It was found that the lengths and widths of the superstructures depend on the cation and counteranion of the salts. Among the salts being used, Na+ and NH4+ ions with BF4− ions showed the most impressive fibrous structures that can grow up to 1 μm in diameter and hundreds of microns in length. In addition, the size of the fibers can be controlled by the evaporation rate of the solvent. A new macrocycle with bulky triptycenyl substituents that prevent supramolecular assembly was prepared and did not display any nanofibers with alkali‐metal ions in chloroform when studied with TEM.</p></abstract><abstract><p>Four‐level hierarchical architecture: Schiff base macrocycles, with a diameter of ≈2 nm, undergo ion‐induced self‐assembly with alkali‐metal and ammonium salts to form well‐defined, high‐fidelity, micron‐scale, fibrillar bundles (see figure). This approach may be exploited to develop new materials and synthetic ion channels.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>coordination polymers</term></item><item><term>electrostatic interactions</term></item><item><term>hierarchical assembly</term></item><item><term>macrocycles</term></item><item><term>Schiff bases</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article-category</head><item><term>Full Paper</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2009-10-02">Received</change><change when="2010-02-22">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api-v5.istex.fr/document/1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>WILEY‐VCH Verlag</publisherName><publisherLoc>Weinheim</publisherLoc></publisherInfo><doi registered="yes">10.1002/(ISSN)1521-3765</doi><issn type="print">0947-6539</issn><issn type="electronic">1521-3765</issn><idGroup><id type="product" value="CHEM"></id></idGroup><titleGroup><title type="main" xml:lang="en">Chemistry – A European Journal</title><title type="short">Chemistry – A European Journal</title></titleGroup></publicationMeta><publicationMeta level="part" position="80"><doi origin="wiley" registered="yes">10.1002/chem.v16:8</doi><numberingGroup><numbering type="journalVolume" number="16">16</numbering><numbering type="journalIssue">8</numbering></numberingGroup><coverDate startDate="2010-02-22">February 22, 2010</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="21" status="forIssue"><doi origin="wiley" registered="yes">10.1002/chem.200902712</doi><idGroup><id type="unit" value="CHEM200902712"></id></idGroup><countGroup><count type="pageTotal" number="8"></count></countGroup><titleGroup><title type="articleCategory">Full Paper</title><title type="tocHeading1">Full Papers</title><title type="tocHeading2">Macrocycles</title></titleGroup><copyright ownership="publisher">Copyright © 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</copyright><eventGroup><event type="manuscriptReceived" date="2009-10-02"></event><event type="firstOnline" date="2010-01-11"></event><event type="publishedOnlineFinalForm" date="2010-02-15"></event><event type="xmlConverted" agent="Converter:JWSART34_TO_WML3G version:2.3.6 mode:FullText source:FullText result:FullText mathml2tex" date="2010-04-19"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-09"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-15"></event></eventGroup><numberingGroup><numbering type="pageFirst">2453</numbering><numbering type="pageLast">2460</numbering></numberingGroup><objectNameGroup><objectName elementName="figure">Scheme</objectName></objectNameGroup><linkGroup><link type="toTypesetVersion" href="file:CHEM.CHEM200902712.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="figureTotal" number="10"></count><count type="tableTotal" number="0"></count><count type="referenceTotal" number="83"></count></countGroup><titleGroup><title type="main" xml:lang="en">Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title></titleGroup><creators><creator xml:id="au1" creatorRole="author" affiliationRef="#aa"><personName><givenNames>Joseph K.‐H.</givenNames><familyName>Hui</familyName></personName></creator><creator xml:id="au2" creatorRole="author" affiliationRef="#aa"><personName><givenNames>Peter D.</givenNames><familyName>Frischmann</familyName></personName></creator><creator xml:id="au3" creatorRole="author" affiliationRef="#ab"><personName><givenNames>Chien‐Hsin</givenNames><familyName>Tso</familyName></personName></creator><creator xml:id="au4" creatorRole="author" affiliationRef="#ab"><personName><givenNames>Carl A.</givenNames><familyName>Michal</familyName><degrees>Prof. Dr.</degrees></personName></creator><creator xml:id="au5" creatorRole="author" affiliationRef="#aa"><personName><givenNames>Mark J.</givenNames><familyName>MacLachlan</familyName><degrees>Prof. Dr.</degrees></personName><contactDetails><email>mmaclach@chem.ubc.ca</email></contactDetails></creator></creators><affiliationGroup><affiliation xml:id="aa" countryCode="CA" type="organization"><unparsedAffiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</unparsedAffiliation></affiliation><affiliation xml:id="ab" countryCode="CA" type="organization"><unparsedAffiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en" type="author"><keyword xml:id="kwd1">coordination polymers</keyword><keyword xml:id="kwd2">electrostatic interactions</keyword><keyword xml:id="kwd3">hierarchical assembly</keyword><keyword xml:id="kwd4">macrocycles</keyword><keyword xml:id="kwd5">Schiff bases</keyword></keywordGroup><fundingInfo><fundingAgency>Natural Sciences and Engineering Research Council</fundingAgency></fundingInfo><fundingInfo><fundingAgency>NSERC</fundingAgency></fundingInfo><fundingInfo><fundingAgency>UBC</fundingAgency></fundingInfo><supportingInformation><p>Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer‐reviewed, but not copy‐edited or typeset. They are made available as submitted by the authors. </p><supportingInfoItem><mediaResource alt="supporting information" href="urn-x:wiley:09476539:media:chem200902712:chem_200902712_sm_miscellaneous_information"></mediaResource><caption>miscellaneous_information</caption></supportingInfoItem></supportingInformation><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>Schiff base macrocycle <b>1</b>, which has a crown ether like central pore, was combined with different alkali‐metal and ammonium salts in chloroform, resulting in one‐dimensional supramolecular aggregates. The ion‐induced self‐assembly was studied with solid‐state NMR spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). It was found that the lengths and widths of the superstructures depend on the cation and counteranion of the salts. Among the salts being used, Na<sup>+</sup> and NH<sub>4</sub><sup>+</sup> ions with BF<sub>4</sub><sup>−</sup> ions showed the most impressive fibrous structures that can grow up to 1 μm in diameter and hundreds of microns in length. In addition, the size of the fibers can be controlled by the evaporation rate of the solvent. A new macrocycle with bulky triptycenyl substituents that prevent supramolecular assembly was prepared and did not display any nanofibers with alkali‐metal ions in chloroform when studied with TEM.</p></abstract><abstract type="graphical" xml:lang="en"><p><b>Four‐level hierarchical architecture</b>: Schiff base macrocycles, with a diameter of ≈2 nm, undergo ion‐induced self‐assembly with alkali‐metal and ammonium salts to form well‐defined, high‐fidelity, micron‐scale, fibrillar bundles (see figure). This approach may be exploited to develop new materials and synthetic ion channels.<blockFixed type="graphic"><mediaResourceGroup><mediaResource alt="image" eRights="yes" copyright="WILEY-VCH" href="urn:x-wiley:09476539:media:CHEM200902712:content"></mediaResource><mediaResource alt="thumbnail image" rendition="webLoRes" mimeType="image/gif" href=""></mediaResource><mediaResource alt="original image" rendition="webOriginal" mimeType="image/gif" href=""></mediaResource><mediaResource alt="magnified image" rendition="webHiRes" mimeType="image/gif" href=""></mediaResource></mediaResourceGroup></blockFixed></p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts</title></titleInfo><name type="personal"><namePart type="given">Joseph K.‐H.</namePart><namePart type="family">Hui</namePart><affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Peter D.</namePart><namePart type="family">Frischmann</namePart><affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Chien‐Hsin</namePart><namePart type="family">Tso</namePart><affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Carl A.</namePart><namePart type="family">Michal</namePart><namePart type="termsOfAddress">Prof. Dr.</namePart><affiliation>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC, V6T 1Z1 (Canada)</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Mark J.</namePart><namePart type="family">MacLachlan</namePart><namePart type="termsOfAddress">Prof. Dr.</namePart><affiliation>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1 (Canada), Fax: (+1) 604‐822‐2847</affiliation><affiliation>E-mail: mmaclach@chem.ubc.ca</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>WILEY‐VCH Verlag</publisher><place><placeTerm type="text">Weinheim</placeTerm></place><dateIssued encoding="w3cdtf">2010-02-22</dateIssued><dateCaptured encoding="w3cdtf">2009-10-02</dateCaptured><copyrightDate encoding="w3cdtf">2010</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">10</extent><extent unit="references">83</extent></physicalDescription><abstract>Schiff base macrocycle 1, which has a crown ether like central pore, was combined with different alkali‐metal and ammonium salts in chloroform, resulting in one‐dimensional supramolecular aggregates. The ion‐induced self‐assembly was studied with solid‐state NMR spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). It was found that the lengths and widths of the superstructures depend on the cation and counteranion of the salts. Among the salts being used, Na+ and NH4+ ions with BF4− ions showed the most impressive fibrous structures that can grow up to 1 μm in diameter and hundreds of microns in length. In addition, the size of the fibers can be controlled by the evaporation rate of the solvent. A new macrocycle with bulky triptycenyl substituents that prevent supramolecular assembly was prepared and did not display any nanofibers with alkali‐metal ions in chloroform when studied with TEM.</abstract><abstract>Four‐level hierarchical architecture: Schiff base macrocycles, with a diameter of ≈2 nm, undergo ion‐induced self‐assembly with alkali‐metal and ammonium salts to form well‐defined, high‐fidelity, micron‐scale, fibrillar bundles (see figure). This approach may be exploited to develop new materials and synthetic ion channels.</abstract><note type="funding">Natural Sciences and Engineering Research Council</note><note type="funding">NSERC</note><note type="funding">UBC</note><subject lang="en"><genre>keywords</genre><topic>coordination polymers</topic><topic>electrostatic interactions</topic><topic>hierarchical assembly</topic><topic>macrocycles</topic><topic>Schiff bases</topic></subject><relatedItem type="host"><titleInfo><title>Chemistry – A European Journal</title></titleInfo><titleInfo type="abbreviated"><title>Chemistry – A European Journal</title></titleInfo><genre type="journal">journal</genre><note type="content"> Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer‐reviewed, but not copy‐edited or typeset. They are made available as submitted by the authors.Supporting Info Item: miscellaneous_information - </note><subject><genre>article-category</genre><topic>Full Paper</topic></subject><identifier type="ISSN">0947-6539</identifier><identifier type="eISSN">1521-3765</identifier><identifier type="DOI">10.1002/(ISSN)1521-3765</identifier><identifier type="PublisherID">CHEM</identifier><part><date>2010</date><detail type="volume"><caption>vol.</caption><number>16</number></detail><detail type="issue"><caption>no.</caption><number>8</number></detail><extent unit="pages"><start>2453</start><end>2460</end><total>8</total></extent></part></relatedItem><identifier type="istex">1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95</identifier><identifier type="DOI">10.1002/chem.200902712</identifier><identifier type="ArticleID">CHEM200902712</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>WILEY‐VCH Verlag</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Istex/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001E11 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Corpus/biblio.hfd -nk 001E11 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Canada
|area= ParkinsonCanadaV1
|flux= Istex
|étape= Corpus
|type= RBID
|clé= ISTEX:1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95
|texte= Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts
}}
| This area was generated with Dilib version V0.6.29. |  |