Structural studies of bis(histidinato)nickel(II): Combined experimental and computational studies
作者:Alireza Abbasi、Barzin Safarkoopayeh、Nikoo Khosravi、Alireza Shayesteh
DOI:10.1016/j.crci.2016.12.006
日期:2017.5
Abstract A distorted octahedral nickel(II) complex, [Ni(2-amino-3-(1H-imidazol-4-yl)propanoic acid)2] (1), has been synthesized by a solvothermal method and characterized by single-crystal X-ray diffraction. Geometry optimization in the gas phase and pyridine together with Hirshfeld surface and reduced density gradient analyses reveal that this complex shows different distortions from octahedral in
摘要 采用溶剂热法合成了扭曲八面体镍 (II) 配合物 [Ni(2-amino-3-(1H-imidazol-4-yl)propanoic acid)2] (1) X射线衍射。气相和吡啶中的几何优化以及 Hirshfeld 表面和降低的密度梯度分析表明,该复合体在气相、液相和固相中显示出与八面体不同的变形。原因似乎是因为在气相中存在两种分子内 NH⋯O 弱相互作用,而在固相中存在两组相当强的分子间 NH⋯O 和 CH⋯O 相互作用。瞬态密度泛函理论 (TD-DFT) 计算表明,这些不同的失真导致不同的电子吸收光谱。