Spin crossover-induced colossal positive and negative thermal expansion in a nanoporous coordination framework material
Identifieur interne : 000086 ( Pmc/Checkpoint ); précédent : 000085; suivant : 000087Spin crossover-induced colossal positive and negative thermal expansion in a nanoporous coordination framework material
Auteurs : Benjamin R. Mullaney ; Laurence Goux-Capes ; David J. Price ; Guillaume Chastanet [France] ; Jean-François Létard [France] ; Cameron J. KepertSource :
- Nature Communications [ 2041-1723 ] ; 2017.
Abstract
External control over the mechanical function of materials is paramount in the development of nanoscale machines. Yet, exploiting changes in atomic behaviour to produce controlled scalable motion is a formidable challenge. Here, we present an ultra-flexible coordination framework material in which a cooperative electronic transition induces an extreme abrupt change in the crystal lattice conformation. This arises due to a change in the preferred coordination character of Fe(II) sites at different spin states, generating scissor-type flexing of the crystal lattice. Diluting the framework with transition-inactive Ni(II) sites disrupts long-range communication of spin state through the lattice, producing a more gradual transition and continuous lattice movement, thus generating colossal positive and negative linear thermal expansion behaviour, with coefficients of thermal expansion an order of magnitude greater than previously reported. This study has wider implications in the development of advanced responsive structures, demonstrating electronic control over mechanical motion.
Url:
DOI: 10.1038/s41467-017-00776-1
PubMed: 29051479
PubMed Central: 5648752
Affiliations:
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A., Schweitzer, F-33608 Pessac France</nlm:aff><country wicri:rule="zip">France</country><wicri:regionArea>87 Av. du Doc. A., Schweitzer, F-33608 Pessac France</wicri:regionArea><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Pessac France</settlement></placeName></affiliation></author><author><name sortKey="Kepert, Cameron J" sort="Kepert, Cameron J" uniqKey="Kepert C" first="Cameron J." last="Kepert">Cameron J. Kepert</name><affiliation><nlm:aff id="Aff1"><institution-wrap><institution-id institution-id-type="ISNI">0000 0004 1936 834X</institution-id><institution-id institution-id-type="GRID">grid.1013.3</institution-id><institution>School of Chemistry,</institution><institution>The University of Sydney, Building F11,</institution></institution-wrap>Sydney, NSW 2006 Australia</nlm:aff><wicri:noCountry code="subfield">NSW 2006 Australia</wicri:noCountry></affiliation></author></analytic><series><title level="j">Nature Communications</title><idno type="eISSN">2041-1723</idno><imprint><date when="2017">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="Par1">External control over the mechanical function of materials is paramount in the development of nanoscale machines. Yet, exploiting changes in atomic behaviour to produce controlled scalable motion is a formidable challenge. Here, we present an ultra-flexible coordination framework material in which a cooperative electronic transition induces an extreme abrupt change in the crystal lattice conformation. This arises due to a change in the preferred coordination character of Fe(II) sites at different spin states, generating scissor-type flexing of the crystal lattice. Diluting the framework with transition-inactive Ni(II) sites disrupts long-range communication of spin state through the lattice, producing a more gradual transition and continuous lattice movement, thus generating colossal positive and negative linear thermal expansion behaviour, with coefficients of thermal expansion an order of magnitude greater than previously reported. This study has wider implications in the development of advanced responsive structures, demonstrating electronic control over mechanical motion.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Du, G" uniqKey="Du G">G Du</name></author><author><name sortKey="Moulin, E" uniqKey="Moulin E">E Moulin</name></author><author><name sortKey="Jouault, N" uniqKey="Jouault N">N Jouault</name></author><author><name sortKey="Buhler, E" uniqKey="Buhler E">E Buhler</name></author><author><name sortKey="Giuseppone, N" uniqKey="Giuseppone N">N Giuseppone</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chen, J" uniqKey="Chen J">J Chen</name></author><author><name sortKey="Hu, L" uniqKey="Hu L">L Hu</name></author><author><name sortKey="Deng, J" uniqKey="Deng J">J Deng</name></author><author><name sortKey="Xing, X" uniqKey="Xing X">X 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Nat Commun</journal-id><journal-id journal-id-type="iso-abbrev">Nat Commun</journal-id><journal-title-group><journal-title>Nature Communications</journal-title></journal-title-group><issn pub-type="epub">2041-1723</issn><publisher><publisher-name>Nature Publishing Group UK</publisher-name><publisher-loc>London</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">29051479</article-id><article-id pub-id-type="pmc">5648752</article-id><article-id pub-id-type="publisher-id">776</article-id><article-id pub-id-type="doi">10.1038/s41467-017-00776-1</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Spin crossover-induced colossal positive and negative thermal expansion in a nanoporous coordination framework material</article-title></title-group><contrib-group><contrib contrib-type="author" equal-contrib="yes"><name><surname>Mullaney</surname><given-names>Benjamin R.</given-names></name><xref ref-type="aff" rid="Aff1">1</xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Goux-Capes</surname><given-names>Laurence</given-names></name><xref ref-type="aff" rid="Aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Price</surname><given-names>David J.</given-names></name><xref ref-type="aff" rid="Aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Chastanet</surname><given-names>Guillaume</given-names></name><xref ref-type="aff" rid="Aff2">2</xref></contrib><contrib contrib-type="author"><name><surname>Létard</surname><given-names>Jean-François</given-names></name><xref ref-type="aff" rid="Aff2">2</xref></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0002-6105-9706</contrib-id><name><surname>Kepert</surname><given-names>Cameron J.</given-names></name><address><email>cameron.kepert@sydney.edu.au</email></address><xref ref-type="aff" rid="Aff1">1</xref></contrib><aff id="Aff1"><label>1</label><institution-wrap><institution-id institution-id-type="ISNI">0000 0004 1936 834X</institution-id><institution-id institution-id-type="GRID">grid.1013.3</institution-id><institution>School of Chemistry,</institution><institution>The University of Sydney, Building F11,</institution></institution-wrap>Sydney, NSW 2006 Australia</aff><aff id="Aff2"><label>2</label><institution-wrap><institution-id institution-id-type="ISNI">0000 0001 2106 639X</institution-id><institution-id institution-id-type="GRID">grid.412041.2</institution-id><institution>ICMCB, UPR CNRS 9048,</institution><institution>Université Bordeaux I,</institution></institution-wrap>87 Av. du Doc. A., Schweitzer, F-33608 Pessac France</aff></contrib-group><pub-date pub-type="epub"><day>20</day><month>10</month><year>2017</year></pub-date><pub-date pub-type="pmc-release"><day>20</day><month>10</month><year>2017</year></pub-date><pub-date pub-type="collection"><year>2017</year></pub-date><volume>8</volume><elocation-id>1053</elocation-id><history><date date-type="received"><day>14</day><month>12</month><year>2016</year></date><date date-type="accepted"><day>27</day><month>7</month><year>2017</year></date></history><permissions><copyright-statement>© The Author(s) 2017</copyright-statement><license license-type="OpenAccess"><license-p><bold>Open Access</bold> This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit <ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>.</license-p></license></permissions><abstract id="Abs1"><p id="Par1">External control over the mechanical function of materials is paramount in the development of nanoscale machines. Yet, exploiting changes in atomic behaviour to produce controlled scalable motion is a formidable challenge. Here, we present an ultra-flexible coordination framework material in which a cooperative electronic transition induces an extreme abrupt change in the crystal lattice conformation. This arises due to a change in the preferred coordination character of Fe(II) sites at different spin states, generating scissor-type flexing of the crystal lattice. Diluting the framework with transition-inactive Ni(II) sites disrupts long-range communication of spin state through the lattice, producing a more gradual transition and continuous lattice movement, thus generating colossal positive and negative linear thermal expansion behaviour, with coefficients of thermal expansion an order of magnitude greater than previously reported. This study has wider implications in the development of advanced responsive structures, demonstrating electronic control over mechanical motion.</p></abstract><abstract id="Abs2" abstract-type="web-summary"><p id="Par2">Controlling mechanical motions in solid state devices is highly desirable for the development of nanoscale machines. Here, Kepert and colleagues exploit an ultra-flexible coordination framework in which thermally-controlled Fe(II) spin transitions result in remarkable flexing of the crystal lattice.</p></abstract><custom-meta-group><custom-meta><meta-name>issue-copyright-statement</meta-name><meta-value>© The Author(s) 2017</meta-value></custom-meta></custom-meta-group></article-meta></front></pmc><affiliations><list><country><li>France</li></country><region><li>Aquitaine</li><li>Nouvelle-Aquitaine</li></region><settlement><li>Pessac France</li></settlement></list><tree><noCountry><name sortKey="Goux Capes, Laurence" sort="Goux Capes, Laurence" uniqKey="Goux Capes L" first="Laurence" last="Goux-Capes">Laurence Goux-Capes</name><name sortKey="Kepert, Cameron J" sort="Kepert, Cameron J" uniqKey="Kepert C" first="Cameron J." last="Kepert">Cameron J. Kepert</name><name sortKey="Mullaney, Benjamin R" sort="Mullaney, Benjamin R" uniqKey="Mullaney B" first="Benjamin R." last="Mullaney">Benjamin R. Mullaney</name><name sortKey="Price, David J" sort="Price, David J" uniqKey="Price D" first="David J." last="Price">David J. Price</name></noCountry><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Chastanet, Guillaume" sort="Chastanet, Guillaume" uniqKey="Chastanet G" first="Guillaume" last="Chastanet">Guillaume Chastanet</name></region><name sortKey="Letard, Jean Francois" sort="Letard, Jean Francois" uniqKey="Letard J" first="Jean-François" last="Létard">Jean-François Létard</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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