Synthesis, crystal structure and characterization of zinc(II) complexes with the tripod ligand tris(2-benzimidazolylmethyl)amine and α , β -unsaturated carboxylates
作者： Hui-lu Wu , Yi-ci Gao , Kai-bei Yu
DOI: 10.1023/B:TMCH.0000019416.72896.C5
关键词: Inorganic chemistry 、 Trigonal bipyramidal molecular geometry 、 Tripod (photography) 、 Zinc 、 Crystal structure 、 Coordination geometry 、 Chemistry 、 Amine gas treating 、 Organometallic chemistry 、 Tris 、 Crystallography
摘要: Four 5-coordinate zinc complexes containing the tripod ligand, tris(2-benzimidazolylmethyl)amine (ntb), and four different α,β-unsaturated carboxylates (L1–4), with compositions [Zn(ntb)(L1–4)](NO3)·nH2O (L1 = acrylate; L2 α-methacrylate; L3 trans-cinnamate; L4 2-hydroxycinnamate; n 1, 1.5 2), were synthesized characterized by means of elemental analyses, electrical conductivities, thermal i.r., u.v., 1H-n.m.r. spectra. The novel crystal structure [Zn(ntb)(L3)](NO3)·H2O·DMF has been determined a single-crystal X-ray diffraction method, shows that each ion is linked to tris(2-benzimidazolymethyl)amine (ntb) unit trans-cinnamate. N4O ligand set. coordination geometries may be best described as distorted trigonal bipyramid site symmetry C3.
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