镍双(3,5-二吡啶基)方氮配合物中的强铁磁金属-配体交换。
Strong ferromagnetic metal-ligand exchange in a nickel bis(3,5-dipyridylverdazyl) complex.
机构信息
Department of Chemistry, San José State University, One Washington Square, San José, CA 95192, USA.
出版信息
Chem Commun (Camb). 2010 Sep 21;46(35):6590-2. doi: 10.1039/c0cc02233k. Epub 2010 Aug 10.
Abstract
A new 1,5-dipyridyl verdazyl, synthesized from the corresponding dipyridyl hydrazone, coordinates nickel(ii) to form a structurally characterized, pseudooctahedral complex analogous to Ni(terpy)(2)(2+). The unusually short Ni-verdazyl distance results in strong ferromagnetic exchange (J(Ni-rad) = +300, J(rad-rad) = +160 cm(-1)) between all three paramagnetic species along with a metal-ligand charge transfer band in the electronic spectrum.
摘要
一种新的 1,5-二吡啶基苯并三唑，由相应的二吡啶基腙合成，与镍（ii）配位形成结构特征的拟八面体配合物，类似于 Ni(terpy)(2)(2+)。镍-苯并三唑的距离异常短，导致所有三种顺磁物种之间具有强铁磁交换（J（Ni-rad）= +300，J（rad-rad）= +160 cm（-1）），以及电子光谱中的金属-配体电荷转移带。
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