Synthesis, characterization and structure of a new dinickel(II) complex as model for urease
作者:Alessandra Greatti、Marcos Aires de Brito、Adailton João Bortoluzzi、Augusto Susin Ceccato
DOI:10.1016/j.molstruc.2003.10.008
日期:2004.1
Abstract A new dinuclear nickel(II) complex [Ni 2 (L)(OAc) 2 (H 2 O)]·ClO 4 ·H 2 O 1 with the unsymmetrical N 5 O donor ligand 2-[bis(2-pyridylmethyl)amino]methyl}-4-methyl-6-[2-pyridylmethyl)amino]methyl}phenol (HL) has been synthesized and characterized by conductivity, UV–Vis–NIR and IR spectroscopy, electrochemical methods and X-ray crystallography. Complex 1 crystallizes as blue crystals in
摘要 一种新的双核镍 (II) 配合物 [Ni 2 (L)(OAc) 2 (H 2 O)]·ClO 4 ·H 2 O 1 与不对称 N 5 O 供体配体 2-[bis(2-pyridylmethyl )amino]methyl}-4-methyl-6-[2-pyridylmethyl)amino]methyl}phenol (HL) 已被合成并通过电导率、UV-Vis-NIR 和 IR 光谱、电化学方法和 X 射线晶体学表征. 配合物1在单斜晶系中结晶为蓝色晶体,空间群I 2/ a a =21.171(4) A, b =12.147(2) A, c =29.771(6) A, β =99.67(3)°, V =7547(2) A 3 和 Z =8。在该复合物中,两种镍离子都具有扭曲的八面体几何形状。镍中心由去质子化配体的酚氧原子内源性桥接,也由作为外源性桥接的两个乙酸酯基团桥接。作为末端配体的水分子与