Spontaneous Hierarchical Assembly of Crown Ether‐like Macrocycles into Nanofibers and Microfibers Induced by Alkali‐Metal and Ammonium Salts
Identifieur interne : 001B73 ( Main/Curation ); précédent : 001B72; suivant : 001B74Spontaneous 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 [Canada] ; Carl Michal [Canada] ; Mark Maclachlan [Canada]Source :
- 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 toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: Pour aller vers cette notice dans l'étape Curation :001E11
- to stream Istex, to step Curation: Pour aller vers cette notice dans l'étape Curation :001E11
- to stream Istex, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000560
- to stream Main, to step Merge: Pour aller vers cette notice dans l'étape Curation :001C87
Links to Exploration step
ISTEX:1BDF365C7E2223C0F8A7EEEB1F00F49E47CA6B95Curation
No country items
Joseph Hui<affiliation><wicri:noCountry code="subField">(+1) 604‐822‐2847</wicri:noCountry></affiliation><affiliation><wicri:noCountry code="subField">(+1) 604‐822‐2847</wicri:noCountry></affiliation>Le 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></author><author><name sortKey="Frischmann, Peter" sort="Frischmann, Peter" uniqKey="Frischmann P" first="Peter" last="Frischmann">Peter Frischmann</name></author><author><name sortKey="Tso, Chien Sin" sort="Tso, Chien Sin" uniqKey="Tso C" first="Chien-Hsin" last="Tso">Chien-Hsin Tso</name></author><author><name sortKey="Michal, Carl" sort="Michal, Carl" uniqKey="Michal C" first="Carl" last="Michal">Carl Michal</name></author><author><name sortKey="Maclachlan, Mark" sort="Maclachlan, Mark" uniqKey="Maclachlan M" first="Mark" last="Maclachlan">Mark Maclachlan</name></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><idno type="wicri:Area/Istex/Curation">001E11</idno><idno type="wicri:Area/Istex/Checkpoint">000560</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000560</idno><idno type="wicri:doubleKey">0947-6539:2010:Hui J:spontaneous:hierarchical:assembly</idno><idno type="wicri:Area/Main/Merge">001C87</idno><idno type="wicri:Area/Main/Curation">001B73</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><wicri:noCountry code="subField">(+1) 604‐822‐2847</wicri:noCountry></affiliation></author><author><name sortKey="Frischmann, Peter" sort="Frischmann, Peter" uniqKey="Frischmann P" first="Peter" last="Frischmann">Peter Frischmann</name><affiliation><wicri:noCountry code="subField">(+1) 604‐822‐2847</wicri:noCountry></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 wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC</wicri:regionArea><wicri:noRegion>BC</wicri:noRegion></affiliation></author><author><name sortKey="Michal, Carl" sort="Michal, Carl" uniqKey="Michal C" first="Carl" last="Michal">Carl Michal</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Rd., Vancouver, BC</wicri:regionArea><wicri:noRegion>BC</wicri:noRegion></affiliation></author><author><name sortKey="Maclachlan, Mark" sort="Maclachlan, Mark" uniqKey="Maclachlan M" first="Mark" last="Maclachlan">Mark Maclachlan</name><affiliation></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Canada</country></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></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001B73 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Curation/biblio.hfd -nk 001B73 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Canada
|area= ParkinsonCanadaV1
|flux= Main
|étape= Curation
|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. |  |