Di- and Tetra-Nuclear Copper(II), Nickel(II), and Cobalt(II) Complexes of Four Bis-Tetradentate Triazole-Based Ligands: Synthesis, Structure, and Magnetic Properties
作者:Juan Olguín、Marguerite Kalisz、Rodolphe Clérac、Sally Brooker
DOI:10.1021/ic202537c
日期:2012.5.7
which are dinuclear, while the other three are tetranuclear. The dinuclear complexes include two copper(II) complexes, [CuII2(LTz2)(H2O)4](BF4)4 (2), [CuII2(LTz4)(BF4)2](BF4)2 (4); two nickel(II) complexes, [NiII2(LTz1)(H2O)3(CH3CN)](BF4)4·0.5(CH3CN) (5) and [NiII2(LTz4)(H2O)4](BF4)4·H2O (8); and seven cobalt(II) complexes, [CoII2(LTz1)(μ-BF4)](BF4)3·H2O (9), [CoII2(LTz2)(μ-BF4)](BF4)3·2H2O (10), [CoII
四个双-四齿Ñ 4 -取代的-3,5- 双[双- ñ - (2-吡啶甲基)〕氨基甲基} -4- H- 1,2,4-三唑配体,L TZ1 -L TZ4,不同之处仅在已合成,表征了三唑N 4取代基R(其中R分别为氨基,吡咯基,苯基或4-叔丁基苯基),并与M II(BF 4)2 ·6H 2 O(M II = Cu, Ni或Co)和Co(SCN)2。使用所有16种可能的金属盐和L TzR组合进行实验进行了分析:获得了14种纯络合物,其中11种为双核,而其他3种为四核。双核络合物包括两种铜(II)络合物,[Cu II 2(L Tz2)(H 2 O)4 ](BF 4)4(2),[Cu II 2(L Tz4)(BF 4)2 ]( BF 4)2(4); 两个镍(II)配合物,[Ni II 2(L Tz1)(H 2 O)3(CH3 CN)](BF 4)4 ·0.5(CH 3 CN)(5)和[Ni II