MEM(TCNQ)2 at room temperature and 10 K, and the absence of a spin-Peierls transition
Identifieur interne : 00BC70 ( Main/Exploration ); précédent : 00BC69; suivant : 00BC71MEM(TCNQ)2 at room temperature and 10 K, and the absence of a spin-Peierls transition
Auteurs : Brian N. Figgis [Australie] ; Alexandre N. Sobolev [Australie] ; Cameron J. Kepert [Australie] ; Mohamedally Kurmoo [France]Source :
- Acta crystallographica. Section C, Crystal structure communications [ 0108-2701 ] ; 2001.
Descripteurs français
- Pascal (Inist)
- Etude expérimentale, Diffraction RX, Température ambiante, Basse température, Domaine température 0-13 K, Rayonnement synchrotron, Structure cristalline, Structure moléculaire, Liaison hydrogène, Conformation, Composé transfert charge, Cation organique, Hétérocycle oxygène azote, Cycle 6 chaînons, Ammonium quaternaire composé, Anion organique, Quinone, Nitrile, 6166H, Transition Peierls spin, Morpholinium(1-éthyl-1-méthyl) benzoquinodiméthanure-7,7,8,8-tétracarbonitrile.
English descriptors
- KwdEn :
- Ambient temperature, Charge transfer complexes, Conformation, Crystal structure, Experimental study, Hydrogen bonds, Low temperature, Molecular structure, Nitriles, Organic anion, Organic cation, Oxygen nitrogen heterocycle, Quaternary ammonium compound, Quinones, Six membered ring, Spin Peierls transition, Synchrotron radiation, Temperature range 0-13 K, XRD.
Abstract
Precise X-ray determinations of the crystal structure of the 1:2 complex of N-ethyl-N-methylmorpholinium and 7,7,8,8-tetracyano-p-quinodimethanide, abbreviated as MEM-TCNQ or MEM(TCNQ)2 (C7H16NO+.2C12H4N40.5-), have been performed at 293 and at 10 K. Evidence for the expected spin-Peierls transition at 19 K is not found, and this may follow from radiation damage to the crystal or from insufficient equipment sensitivity.
Affiliations:
- Australie, France
- Alsace (région administrative), Grand Est, Nouvelle-Galles du Sud
- Strasbourg, Sydney
- Université de Sydney
Links toward previous steps (curation, corpus...)
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Le document en format XML
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Figgis</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chemistry Department, University of Western Australia, 35 Stirling Highway</s1><s2>Crawley, WA 6009</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Crawley, WA 6009</wicri:noRegion></affiliation></author><author><name sortKey="Sobolev, Alexandre N" sort="Sobolev, Alexandre N" uniqKey="Sobolev A" first="Alexandre N." last="Sobolev">Alexandre N. Sobolev</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chemistry Department, University of Western Australia, 35 Stirling Highway</s1><s2>Crawley, WA 6009</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Crawley, WA 6009</wicri:noRegion></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 wicri:level="4"><inist:fA14 i1="02"><s1>Chemistry Department, University of Sydney</s1><s2>NSW 2006</s2><s3>AUS</s3><sZ>3 aut.</sZ></inist:fA14><country>Australie</country><placeName><settlement type="city">Sydney</settlement><region type="état">Nouvelle-Galles du Sud</region></placeName><orgName type="university">Université de Sydney</orgName></affiliation></author><author><name sortKey="Kurmoo, Mohamedally" sort="Kurmoo, Mohamedally" uniqKey="Kurmoo M" first="Mohamedally" last="Kurmoo">Mohamedally Kurmoo</name><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>IPCMS, 23 Rue du Loess</s1><s2>67037 Strasbourg</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Acta crystallographica. Section C, Crystal structure communications</title><title level="j" type="abbreviated">Acta crystallogr., Sect. C Cryst. struct. commun.</title><idno type="ISSN">0108-2701</idno><imprint><date when="2001">2001</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Acta crystallographica. Section C, Crystal structure communications</title><title level="j" type="abbreviated">Acta crystallogr., Sect. C Cryst. struct. commun.</title><idno type="ISSN">0108-2701</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ambient temperature</term><term>Charge transfer complexes</term><term>Conformation</term><term>Crystal structure</term><term>Experimental study</term><term>Hydrogen bonds</term><term>Low temperature</term><term>Molecular structure</term><term>Nitriles</term><term>Organic anion</term><term>Organic cation</term><term>Oxygen nitrogen heterocycle</term><term>Quaternary ammonium compound</term><term>Quinones</term><term>Six membered ring</term><term>Spin Peierls transition</term><term>Synchrotron radiation</term><term>Temperature range 0-13 K</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Diffraction RX</term><term>Température ambiante</term><term>Basse température</term><term>Domaine température 0-13 K</term><term>Rayonnement synchrotron</term><term>Structure cristalline</term><term>Structure moléculaire</term><term>Liaison hydrogène</term><term>Conformation</term><term>Composé transfert charge</term><term>Cation organique</term><term>Hétérocycle oxygène azote</term><term>Cycle 6 chaînons</term><term>Ammonium quaternaire composé</term><term>Anion organique</term><term>Quinone</term><term>Nitrile</term><term>6166H</term><term>Transition Peierls spin</term><term>Morpholinium(1-éthyl-1-méthyl) benzoquinodiméthanure-7,7,8,8-tétracarbonitrile</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Precise X-ray determinations of the crystal structure of the 1:2 complex of N-ethyl-N-methylmorpholinium and 7,7,8,8-tetracyano-p-quinodimethanide, abbreviated as MEM-TCNQ or MEM(TCNQ)<sub>2</sub> (C<sub>7</sub>H<sub>16</sub>NO<sup>+</sup>.2C<sub>12</sub>H<sub>4</sub>N<sub>4</sub><sup>0.5-</sup>), have been performed at 293 and at 10 K. Evidence for the expected spin-Peierls transition at 19 K is not found, and this may follow from radiation damage to the crystal or from insufficient equipment sensitivity.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Alsace (région administrative)</li><li>Grand Est</li><li>Nouvelle-Galles du Sud</li></region><settlement><li>Strasbourg</li><li>Sydney</li></settlement><orgName><li>Université de Sydney</li></orgName></list><tree><country name="Australie"><noRegion><name sortKey="Figgis, Brian N" sort="Figgis, Brian N" uniqKey="Figgis B" first="Brian N." last="Figgis">Brian N. Figgis</name></noRegion><name sortKey="Kepert, Cameron J" sort="Kepert, Cameron J" uniqKey="Kepert C" first="Cameron J." last="Kepert">Cameron J. Kepert</name><name sortKey="Sobolev, Alexandre N" sort="Sobolev, Alexandre N" uniqKey="Sobolev A" first="Alexandre N." last="Sobolev">Alexandre N. Sobolev</name></country><country name="France"><region name="Grand Est"><name sortKey="Kurmoo, Mohamedally" sort="Kurmoo, Mohamedally" uniqKey="Kurmoo M" first="Mohamedally" last="Kurmoo">Mohamedally Kurmoo</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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