Synthesis, spectroscopic and magnetic properties of nickel(II) with N-protected amino acids: crystal and molecular structure of bis(N-acetylglycinato)tetraaquonickel(II)
作者:S.S. Sandhu、M.S. Hundal、Geeta Sood、S.S. Dhillon
DOI:10.1016/s0277-5387(00)86531-6
日期:1989.1
Abstract Nickel(II) complexes of the general formula NiL2·nH2O have been prepared with various N-protected amino acids and characterized by thermogravimetric, magnetic susceptibility, IR and UV spectroscopy. The crystal structure of bis(N-acetylglycinato) tetraaquonickel(II) has been determined. The coordination around nickel is octahedral with two acetylglycine ligands trans to each other. Acetylglycine
摘要用各种N-保护的氨基酸制备了通式为NiL2·nH2O的镍(II)配合物,并通过热重,磁化率,红外和紫外光谱进行了表征。已经确定了双(N-乙酰基氨基乙酸)四季镍(II)的晶体结构。镍周围的配位是八面体,两个乙酰基甘氨酸配体彼此反过来。乙酰甘氨酸通过一个羧基的氧与镍配位,其余四个配位位点被四个水分子占据。该结构通过强分子间氢键结合在一起。光谱研究表明,所有复合物的结构均为八面体。