Synthesis, Crystal Structure, and Characterization of Two Novel Five‐coordinate Zinc(II) Complexes with the Tripod Ligand Tris(N‐methylbenzimidazol‐2‐yl‐methyl)amine and α,β‐unsaturated Carboxylates

Zeitschrift fur Anorganische und Allgemeine Chemie - Tập 635 Số 1 - Trang 146-150 - 2009
Huilu Wu1, Tao Sun1, Ke Li1, Yuhao Xu1, Ruirui Yun1, Qingyu Sun1
1School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, P. R. China

Tóm tắt

AbstractTwo novel five‐coordinate zinc(II) complexes with the tripod ligand tris(N‐methylbenzimidazol‐2‐ylmethyl)amine (Mentb) and two different α,β‐unsaturated carboxylates, with the composition [Zn(Mentb)(acrylate)] (ClO4)·DMF·1.5CH3OH (1) and [Zn(Mentb)(cinnamate)](ClO4)·2DMF·0.5CH3OH (2), were synthesized and characterized by means of elemental analyses, electrical conductivity measurements, IR, UV, and 1H NMR spectra. The crystal structure of two complexes have been determined by a single‐crystal X‐ray diffraction method, and show that the ZnII atom is bonded to a Mentb ligand and a α,β‐unsaturated carboxylate molecule through four N atoms and one O atom, resulting in a distorted trigonal‐bipyramidal coordination [τ(1) = 0.853, τ(2) = 0.855], with approximate C3 symmetry.

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Zeitschrift fur Anorganische und Allgemeine Chemie

Tập 635 Số 1

146-150

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