Preparation, characterization and crystal structures of metal(II) tetraza macrocyclic complexes with organic co-ligands
作者:In-Taek Lim、Jong-Hoon Park、Ki-Young Choi、Chong-Hyeak Kim、Yoon-Mi Choi
DOI:10.1007/s11243-018-0220-x
日期:2018.5
been synthesized and structurally characterized. The crystal structure of complex 1 shows a distorted octahedral coordination geometry around the nickel(II) center, with four secondary amines in the equatorial positions and two nitrogen atoms of the pyc− ligands in the trans positions. In complex 2, the coordination environment around the copper(II) center is a Jahn–Teller distorted octahedron with four
配合物[Ni(L1)(pyc)2]·2H2O (1) (L1 = C-meso-5,5,7,12,12,14-六甲基-1,4,8,11-四氮杂环十四烷;Hpyc =吡嗪羧酸)和 [Cu(L2)(H-cpdc)] (2)(L2 = 3,14-二甲基-2,6,13,17-四氮杂三环[14,4,01.18,07.12]二十二烷;H2-cpdc = 环丙烷二羧酸)已合成并进行结构表征。配合物 1 的晶体结构显示出围绕镍 (II) 中心的扭曲八面体配位几何形状,在赤道位置有四个仲胺,在反式位置有两个 pyc-配体的氮原子。在配合物 2 中,铜 (II) 中心周围的配位环境是一个 Jahn-Teller 扭曲八面体,具有四个 Cu-N 键和两个轴向 Cu-O 键。电子光谱,