作者:Takuya Shiga、Rina Kumamaru、Graham N. Newton、Hiroki Oshio
DOI:10.1039/c8dt00586a
日期:——
anthraquinone-type multidentate ligands, HL1–3 (HL = 2-R-1H-anthra[1,2-d]imidazole-6,11-dione; HL1: R = (2-pyridyl), HL2; R = (4,6-dimethyl-2-pyridyl), HL3; R = (6-methoxy-2-pyridyl)), were prepared, and their complexation behaviour was investigated. Three bis-chelate cobalt complexes with the formula [CoII(L1–3)2]·n(solv.) (1, 2, and 3 for HL1, HL2, and HL3, respectively), in which the ligands adopted tridentate
三个蒽醌型多齿配体,HL 1-3(HL = 2-R-1 H-蒽[1,2- d ]咪唑-6,11-二酮; HL 1:R =(2-吡啶基),HL 2;制备R =(4,6-二甲基-2-吡啶基),HL 3; R =(6-甲氧基-2-吡啶基)),并研究它们的络合行为。三个双-螯合物钴配合物与式[CO II(L 1-3)2 ]· Ñ(溶剂)(1,2,和3为HL 1,HL 2,和HL 3,分别),其中配体采用三齿结合模式,合成和结构特征通过单晶X射线分析。在CH 2 Cl 2中对1-3的电化学研究揭示了三个可逆的氧化还原波,分别分配给配体和以钴为中心的过程。还获得了其中HL 1采用双齿结合模式,稳定单螯合物[Co II(HL 1)(NO 3)2(DMF)2 ](4)物种和三螯合物[Co III(L 1)的复合物。)3 ](5)络合物,其中钴离子处于3+状态。在DMF中研究了配合物5的电化学性质,发现与配合物1相比,Co(II)/