Reactivity between late first-row transition metal halides and the ligand bis(2-pyridylmethyl)disulfide: Vibrantly-colored compounds with variable molecular geometries influenced by metal-sulfur interactions
作者:Nicolas Cena、Rusty L. Blanski、Mark A. Coppola、Andrea N. Giordano、Kamran B. Ghiassi
DOI:10.1016/j.ica.2022.120910
日期:2022.7
Co; L = bis(2-pyridylmethyl)disulfide; X = Cl, Br) with the ligand serving as a tridentate scaffold employing one sulfur and two nitrogen donors. The crystal structures ZnLCl2•CHCl3 and ZnLBr2•CHCl3 are isomorphous as are the structures ZnLCl2•CH2Cl2, ZnLBr2•CH2Cl2, and CoLBr2•CH2Cl2. The crystal structure of CoLCl2 is a kryptoracemate, having an enantiomeric pair within the asymmetric unit. Although
检测了后第一排过渡金属卤化物与含二硫化物的配体双(2-吡啶基甲基)二硫化物之间的反应性。根据这项调查,制备并表征了一系列单核、四配位和五配位金属化合物。采用单晶 X 射线衍射分析固态的分子结构。四配位四面体化合物采用 MLX 2形式(M = Zn;L = 双(2-吡啶基甲基)二硫化物;X = Cl、Br),其中二硫化物配体由两个氮供体或 MLX 以双齿方式配位(M = Cu;L = 双(2-吡啶基甲基) )二硫化物;X = Cl、Br),其中配体是三齿配体,通过一个硫和两个氮供体配位。五配位金属化合物虽然由于金属-硫相互作用强度而在分子几何形状方面有显着差异,但采用 MLX 2 (M = Zn, Cu, Co; L = 双(2-吡啶基甲基)二硫化物; X = Cl , Br) 配体作为三齿支架,采用一个硫和两个氮供体。晶体结构 ZnLCl 2 •CHCl 3和 ZnLBr 2 •CHCl 3与结构