Magnetic properties of a doped linear polyarylamine bearing a high concentration of coupled spins (S = 1).
Identifieur interne : 001E29 ( PubMed/Corpus ); précédent : 001E28; suivant : 001E30Magnetic properties of a doped linear polyarylamine bearing a high concentration of coupled spins (S = 1).
Auteurs : Vincent Maurel ; Mohammad Jouni ; Piotr Baran ; Nicolas Onofrio ; Serge Gambarelli ; Jean-Marie Mouesca ; David Djurado ; Lionel Dubois ; Jean-François Jacquot ; Gérard Desfonds ; Irena Kulszewicz-BajerSource :
- Physical chemistry chemical physics : PCCP [ 1463-9084 ] ; 2012.
Abstract
Magnetic properties of a doped linear polyarylamine (PA2), whose chain includes alternating para-phenylene and meta-phenylene groups, and of two cyclic and linear model compounds (C2 and D2) were explored by pulsed-EPR nutation spectroscopy, SQUID magnetometry and DFT calculations. Stoichiometrically doped PA2 samples exhibit a pure S = 1 state (exchange coupling constant J = 18 K) with a high spin concentration (0.65) corresponding to 65% of mers bearing holes. Such properties were already observed for doped reticulated polyarylamines but are quite unusual for doped linear polyarylamines. In order to better understand the properties of PA2, model compounds C2 and D2 were also investigated: pure S = 1 spin states could also be obtained, but with higher J (respectively 57 K and 35 K) and, surprisingly, with high but still limited spin concentrations (respectively 0.77 and 0.65).
DOI: 10.1039/c1cp22766a
PubMed: 22146900
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Stoichiometrically doped PA2 samples exhibit a pure S = 1 state (exchange coupling constant J = 18 K) with a high spin concentration (0.65) corresponding to 65% of mers bearing holes. Such properties were already observed for doped reticulated polyarylamines but are quite unusual for doped linear polyarylamines. In order to better understand the properties of PA2, model compounds C2 and D2 were also investigated: pure S = 1 spin states could also be obtained, but with higher J (respectively 57 K and 35 K) and, surprisingly, with high but still limited spin concentrations (respectively 0.77 and 0.65).</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">22146900</PMID><DateCompleted><Year>2012</Year><Month>04</Month><Day>20</Day></DateCompleted><DateRevised><Year>2011</Year><Month>12</Month><Day>23</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1463-9084</ISSN><JournalIssue CitedMedium="Internet"><Volume>14</Volume><Issue>4</Issue><PubDate><Year>2012</Year><Month>Jan</Month><Day>28</Day></PubDate></JournalIssue><Title>Physical chemistry chemical physics : PCCP</Title><ISOAbbreviation>Phys Chem Chem Phys</ISOAbbreviation></Journal><ArticleTitle>Magnetic properties of a doped linear polyarylamine bearing a high concentration of coupled spins (S = 1).</ArticleTitle><Pagination><MedlinePgn>1399-407</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1039/c1cp22766a</ELocationID><Abstract><AbstractText>Magnetic properties of a doped linear polyarylamine (PA2), whose chain includes alternating para-phenylene and meta-phenylene groups, and of two cyclic and linear model compounds (C2 and D2) were explored by pulsed-EPR nutation spectroscopy, SQUID magnetometry and DFT calculations. Stoichiometrically doped PA2 samples exhibit a pure S = 1 state (exchange coupling constant J = 18 K) with a high spin concentration (0.65) corresponding to 65% of mers bearing holes. Such properties were already observed for doped reticulated polyarylamines but are quite unusual for doped linear polyarylamines. In order to better understand the properties of PA2, model compounds C2 and D2 were also investigated: pure S = 1 spin states could also be obtained, but with higher J (respectively 57 K and 35 K) and, surprisingly, with high but still limited spin concentrations (respectively 0.77 and 0.65).</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Maurel</LastName><ForeName>Vincent</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>CEA-Grenoble, SCIB, UMR-E 3 CEA/UJF-Grenoble 1, INAC, Grenoble, France. vincent.maurel@cea.fr</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jouni</LastName><ForeName>Mohammad</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Baran</LastName><ForeName>Piotr</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Onofrio</LastName><ForeName>Nicolas</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Gambarelli</LastName><ForeName>Serge</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Mouesca</LastName><ForeName>Jean-Marie</ForeName><Initials>JM</Initials></Author><Author ValidYN="Y"><LastName>Djurado</LastName><ForeName>David</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Dubois</LastName><ForeName>Lionel</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Jacquot</LastName><ForeName>Jean-François</ForeName><Initials>JF</Initials></Author><Author ValidYN="Y"><LastName>Desfonds</LastName><ForeName>Gérard</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Kulszewicz-Bajer</LastName><ForeName>Irena</ForeName><Initials>I</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2011</Year><Month>12</Month><Day>07</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Phys Chem Chem Phys</MedlineTA><NlmUniqueID>100888160</NlmUniqueID><ISSNLinking>1463-9076</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>12</Month><Day>8</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>12</Month><Day>8</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>12</Month><Day>8</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22146900</ArticleId><ArticleId IdType="doi">10.1039/c1cp22766a</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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