Zou Yang
Chemistry Department, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2010 Mar 31;66(Pt 4):m471-2. doi: 10.1107/S1600536810011293.
The two unique Ni(II) atoms of the title complex, [MnNi(2)(C(11)H(8)N(3)O(6))(2)(H(2)O)(4)]·4H(2)O, have a slightly distorted square-planar coordination environment with a tetra-dentate N-(5-nitro-2-oxidobenzyl-idene)glycylglycinate Schiff base trianion. The Ni(II) atoms are coordinated by one phenolate O atom, one imine N atom, one amido N atom and one carboxyl-ate O atom. The Mn(II )atom is connected via the carboxyl-ate groups, forming a hetero-trinuclear Ni(II)-Mn(II)-Ni(II) system. The Mn(II) atom is six-coordinated in an octa-hedral geometry by four O atoms from two carboxyl-ate groups and four water mol-ecules. The Ni(II)-Mn(II)-Ni(II) hetero-trinuclear mol-ecules are stacked in the crystal and cross-linked through O-H⋯O hydrogen bonds.
标题配合物[MnNi₂(C₁₁H₈N₃O₆)₂(H₂O)₄]·4H₂O中的两个独特镍(II)原子具有略微扭曲的平面正方形配位环境，与一个四齿的N-(5-硝基-2-氧化苄基)甘氨酰甘氨酸席夫碱三阴离子配位。镍(II)原子由一个酚氧原子、一个亚胺氮原子、一个酰胺氮原子和一个羧酸根氧原子配位。锰(II)原子通过羧酸根基团相连，形成一个异三核Ni(II)-Mn(II)-Ni(II)体系。锰(II)原子通过来自两个羧酸根基团的四个氧原子和四个水分子以八面体几何构型进行六配位。Ni(II)-Mn(II)-Ni(II)异三核分子在晶体中堆叠，并通过O-H⋯O氢键交联。
