Hexanuclear Fe~(III)_2Co~(III)_2M ~(II)_2 (M = Cu, Ni, Mn) clusters based on Kl?ui's tripodal ligand and tricyanometalates: Syntheses, structures and magnetic properties

Kang L.-C.; Yao M.-X.; Chen X.; Li Y.-Z.; Song Y.; Zuo J.-L.; You X.-Z.

首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Hexanuclear Fe~(III)_2Co~(III)_2M ~(II)_2 (M = Cu, Ni, Mn) clusters based on Kl?ui's tripodal ligand and tricyanometalates: Syntheses, structures and magnetic properties

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Hexanuclear Fe~(III)_2Co~(III)_2M ~(II)_2 (M = Cu, Ni, Mn) clusters based on Kl?ui's tripodal ligand and tricyanometalates: Syntheses, structures and magnetic properties

机译：六核Fe〜（III）_2Co〜（III）_2M〜（II）_2（M = Cu，Ni，Mn）基于Kluui三脚架配体和三氰基金属酸盐的团簇：合成，结构和磁性

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With the use of Kl?ui's tripodal ligand, [(Cp)Co(P(O)(OEt) _2)_3]~- (L_(CoEt), Cp = cyclopentadiene) as the auxiliary ligand to react with different metal salts and tricyanometalate building blocks, five neutral trimetallic hexanuclear complexes: [(Tp) _2Fe_2(CN)_6Cu_2(L_(CoEt)) _2]·6H_2O (1, Tp = hydridotris(pyrazolyl)borate), [(Tp*)_2Fe_2(CN)_6Cu_2(L _(CoEt))_2]·2H_2O (2, Tp* = hydridotris(3, 5-dimethyl-pyrazolyl)borate), [(pzTp)_2Fe _2(CN)_6Cu_2(L_(CoEt))_2] ·H_2O·3MeOH (3, pzTp = tetra(pyrazolyl)borate), [(Tp)_2Fe_2(CN)_6Ni_2(L _(CoEt))_2(MeCN)_2]·2MeCN·2H _2O (4) and [(Tp)_2Fe_2(CN)_6Mn _2(L_(CoEt))_2(MeCN)_2]·2MeCN (5), have been obtained and structurally characterized. Magnetic measurements confirm that there are ferromagnetic couplings between the cyano-bridged Fe and Cu/or Ni ions and antiferromagnetic interaction between the cyano-bridged Fe and Mn ions. Slow relaxation of the magnetization is observed in complexes 1 and 4, while complex 3 exhibits metamagnetic behavior with a critical field of 17.5 kOe.

机译：使用Kluui的三脚架配体，[（Cp）Co（P（O）（OEt）_2）_3]〜-（L_（CoEt），Cp =环戊二烯）作为辅助配体与不同的金属盐和三氰基金属酸盐砌块，五个中性三金属六核配合物：[（Tp）_2Fe_2（CN）_6Cu_2（L_（CoEt））_2]·6H_2O（1，Tp =氢化三（吡唑基）硼酸酯），[（Tp *）_ 2Fe_2（CN） _6Cu_2（L _（CoEt））_ 2]·2H_2O（2，Tp * =氢化三（3，5-二甲基吡唑基）硼酸酯），[（pzTp）_2Fe _2（CN）_6Cu_2（L_（CoEt））_ 2]· H_2O·3MeOH（3，pzTp =四吡唑基硼酸酯），[（Tp）_2Fe_2（CN）_6Ni_2（L _（CoEt））_ 2（MeCN）_2]·2MeCN·2H _2O（4）和[（Tp）已获得_2Fe_2（CN）_6Mn_2（L_（CoEt））_ 2（MeCN）_2]·2MeCN（5）并对其结构进行了表征。磁性测量结果证实，在氰基桥接的Fe和Cu /或Ni离子之间存在铁磁耦合，在氰基桥接的Fe和Mn离子之间存在反铁磁相互作用。在配合物1和4中观察到磁化的缓慢松弛，而配合物3表现出具有17.5kOe的临界场的亚磁行为。

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《Dalton transactions: An international journal of inorganic chemistry》 |2011年第10期|共9页
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Kang L.-C.; Yao M.-X.; Chen X.; Li Y.-Z.; Song Y.; Zuo J.-L.; You X.-Z.;
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Hexanuclear Fe~(III)_2Co~(III)_2M ~(II)_2 (M = Cu, Ni, Mn) clusters based on Kl?ui's tripodal ligand and tricyanometalates: Syntheses, structures and magnetic properties

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