Synthesis and Characterization of Trinuclear Ni
<sup>II</sup>
<sub>3</sub>
and Cu
<sup>II</sup>
<sub>3</sub>
Triplesalophen Complexes: Evaluation of Ligand Folding and Heteroradialene Formation and their Impact on the Magnetic Properties
作者:Carl‐Georg Freiherr von Richthofen、Anja Stammler、Hartmut Bögge、Thorsten Glaser
DOI:10.1002/ejic.201200990
日期:2012.12
ligands, still has a strong but smaller contribution in the trinuclear triplesalophen complexes. The magnetic properties demonstrate weak intramolecular ferromagnetic interactions mediated by the triplesalophen ligands in the trinuclear CuII3 complexes, which are experimentally difficult to determine due to intermolecular antiferromagnetic interactions of the same order of magnitude.
已经研究了三卤代苯配体 H6baronR(R = Me、Cl、Br)与 CuII 和 NiII 的配位化学。三沙罗酚配体系统是三沙仑配体系统的延伸,由桥联间苯三酚环和三个间亚苯基沙罗酚配位室组成。与triplesalen配合物相比,三环盐酸盐配体的完全sp2杂化主链应该有利于三核配合物的更平面的分子结构。配体与金属乙酸盐在正丁醇/CHCl3 中的反应提供了复合物 [(baronMe)Ni3]a、[(baronCl)Ni3]a、[(baronBr)Ni3]a、[(baronMe)Cu3]、[( baronCl)Cu3]和[(baronBr)Cu3]。对于 NiII 配合物,从吡啶中重结晶或在吡啶中进行反应得到化合物 [(baronMe)Ni3]b 和 [(baronCl)Ni3]b,而对于溴衍生物,已获得具有一个四配位和两个六配位 NiIII 离子的复合物 [(baronBr)Ni(py)2}2Ni]。相比之下,对于