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Article: Weak ferromagnetism in chiral diamond-like neutral networks: Mn(2-pymS)2 and Co(2-pymS)2 (2-pymSH = 2-mercaptopyrimidine)
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TitleWeak ferromagnetism in chiral diamond-like neutral networks: Mn(2-pymS)2 and Co(2-pymS)2 (2-pymSH = 2-mercaptopyrimidine)
 
AuthorsZhang, J3 1 2
Gao, S3
Zhang, XX4
Wang, ZM3
Che, CM2
 
KeywordsBridging ligands
Chemical formulae
Complex 1
Critical temperatures
Diamond-like
 
Issue Date2012
 
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton
 
CitationDalton Transactions, 2012, v. 48 n. 9, p. 2626-2631 [How to Cite?]
DOI: http://dx.doi.org/10.1039/c2dt11738j
 
AbstractThe reactions of 2-mercatopyrimidine with MCl(2) (M = Mn(2+) or Co(2+)) in solvothermal conditions result single crystals of Mn(2-pymS)(2)1 and Co(2-pymS)(2)2. The two complexes both have the diamond-like topology frameworks, which could be traced back to the similar way of pyrimidine rings acting as the asymmetric bridging ligands. Interestingly, although they have similar chemical formulas, structural analysis by single-crystal X-ray diffraction studies reveals that the sulfur atoms play different roles in 1 and 2. For 1, the Mn ion lies in a distorted octahedral environment bonded to four nitrogen atoms and two sulfur atoms, whereas the Co ion in a distorted tetrahedral environment only coordinates to nitrogen atoms of pyrimidine ligands in the case of Co(2-pymS)(2)2. More interestingly, although magnetic measurements for both complex 1 and 2 indicate long range magnetic ordering and spin canting below the critical temperature (20 K for 1 and 42.9 K for 2), a hysteresis loop can be observed even at 40 K, which is just below the T(C) for complex 2, which is distinctly harder than 1.
 
ISSN1477-9226
2013 Impact Factor: 4.097
 
DOIhttp://dx.doi.org/10.1039/c2dt11738j
 
ISI Accession Number IDWOS:000300314700011
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorZhang, J
 
dc.contributor.authorGao, S
 
dc.contributor.authorZhang, XX
 
dc.contributor.authorWang, ZM
 
dc.contributor.authorChe, CM
 
dc.date.accessioned2012-10-08T03:23:57Z
 
dc.date.available2012-10-08T03:23:57Z
 
dc.date.issued2012
 
dc.description.abstractThe reactions of 2-mercatopyrimidine with MCl(2) (M = Mn(2+) or Co(2+)) in solvothermal conditions result single crystals of Mn(2-pymS)(2)1 and Co(2-pymS)(2)2. The two complexes both have the diamond-like topology frameworks, which could be traced back to the similar way of pyrimidine rings acting as the asymmetric bridging ligands. Interestingly, although they have similar chemical formulas, structural analysis by single-crystal X-ray diffraction studies reveals that the sulfur atoms play different roles in 1 and 2. For 1, the Mn ion lies in a distorted octahedral environment bonded to four nitrogen atoms and two sulfur atoms, whereas the Co ion in a distorted tetrahedral environment only coordinates to nitrogen atoms of pyrimidine ligands in the case of Co(2-pymS)(2)2. More interestingly, although magnetic measurements for both complex 1 and 2 indicate long range magnetic ordering and spin canting below the critical temperature (20 K for 1 and 42.9 K for 2), a hysteresis loop can be observed even at 40 K, which is just below the T(C) for complex 2, which is distinctly harder than 1.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationDalton Transactions, 2012, v. 48 n. 9, p. 2626-2631 [How to Cite?]
DOI: http://dx.doi.org/10.1039/c2dt11738j
 
dc.identifier.doihttp://dx.doi.org/10.1039/c2dt11738j
 
dc.identifier.epage2631
 
dc.identifier.hkuros205151
 
dc.identifier.isiWOS:000300314700011
 
dc.identifier.issn1477-9226
2013 Impact Factor: 4.097
 
dc.identifier.issue9
 
dc.identifier.pmid22266787
 
dc.identifier.scopuseid_2-s2.0-84863261190
 
dc.identifier.spage2626
 
dc.identifier.urihttp://hdl.handle.net/10722/168649
 
dc.identifier.volume48
 
dc.languageeng
 
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofDalton Transactions
 
dc.relation.referencesReferences in Scopus
 
dc.subjectBridging ligands
 
dc.subjectChemical formulae
 
dc.subjectComplex 1
 
dc.subjectCritical temperatures
 
dc.subjectDiamond-like
 
dc.titleWeak ferromagnetism in chiral diamond-like neutral networks: Mn(2-pymS)2 and Co(2-pymS)2 (2-pymSH = 2-mercaptopyrimidine)
 
dc.typeArticle
 
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<contributor.author>Gao, S</contributor.author>
<contributor.author>Zhang, XX</contributor.author>
<contributor.author>Wang, ZM</contributor.author>
<contributor.author>Che, CM</contributor.author>
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<description.abstract>The reactions of 2-mercatopyrimidine with MCl(2) (M = Mn(2+) or Co(2+)) in solvothermal conditions result single crystals of Mn(2-pymS)(2)1 and Co(2-pymS)(2)2. The two complexes both have the diamond-like topology frameworks, which could be traced back to the similar way of pyrimidine rings acting as the asymmetric bridging ligands. Interestingly, although they have similar chemical formulas, structural analysis by single-crystal X-ray diffraction studies reveals that the sulfur atoms play different roles in 1 and 2. For 1, the Mn ion lies in a distorted octahedral environment bonded to four nitrogen atoms and two sulfur atoms, whereas the Co ion in a distorted tetrahedral environment only coordinates to nitrogen atoms of pyrimidine ligands in the case of Co(2-pymS)(2)2. More interestingly, although magnetic measurements for both complex 1 and 2 indicate long range magnetic ordering and spin canting below the critical temperature (20 K for 1 and 42.9 K for 2), a hysteresis loop can be observed even at 40 K, which is just below the T(C) for complex 2, which is distinctly harder than 1.</description.abstract>
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Author Affiliations
  1. Graduate University of Chinese Academy of Sciences
  2. The University of Hong Kong
  3. College of Chemistry and Molecular Engineering, Peking University
  4. Hong Kong University of Science and Technology