一维 -[La(III)-自由基]-配位聚合物中的铁磁超交换作用。
Ferromagnetic superexchange in a 1D -[La(III)-radical]- coordination polymer.
机构信息
Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada.
出版信息
Chem Commun (Camb). 2013 Jul 18;49(56):6271-3. doi: 10.1039/c3cc43267j.
The first coordination polymer of a bridging radical 1,2,3,5-dithiadiazolyl ligand is reported. Upon coordination with the La(hfac)3 fragment, the paramagnetic 4-(benzoxazol-2'-yl)-1,2,3,5-dithiadiazolyl (boaDTDA) ligand forms a one-dimensional (1D) alternating -[La(hfac)3-boaDTDA]n- polymer exhibiting ferromagnetic (FM) coupling between the radicals, mediated through the diamagnetic La(III) ion (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonato).
首例桥联自由基 1,2,3,5-二噻二唑配体的配位聚合物被报道。在与 La(hfac)3 片段配位时，顺磁 4-(苯并恶唑-2'-基)-1,2,3,5-二噻二唑（boaDTDA）配体形成一维（1D）交替 -[La(hfac)3-boaDTDA]n-聚合物，自由基之间通过顺磁 La(III)离子（hfac = 1,1,1,5,5,5-六氟乙酰丙酮酸根）表现出铁磁（FM）耦合。
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