Syntheses, Characterization, and Crystal Structures of Schiff Base Zinc(II) Complexes With Tetrahedral Coordination

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry Pub Date : 2016-05-16 DOI:10.1080/15533174.2015.1137065

J. Qin, Z. Xia, Yu Zhang, F. Niu, Z. You, Hailiang Zhu

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引用次数: 3

Abstract

Two new mononuclear Schiff base zinc(II) complexes, [ZnClL1(N3)]·2MeOH (1) and [ZnBr2(L2)]·MeOH (2) (L1 = 4-methyl-2-[(2-piperazinium-1-ylethylimino)methyl]phenolate; L2 = 2-[(2-diethylammonioethylimino)methyl]-4-methylphenolate), have been prepared and characterized by elemental analyses, infrared and UV-vis spectroscopy, and single-cyrstal X-ray diffraction. Complex 1 crystallizes in the orthorhombic space group Pbca with unit cell dimensions a = 18.703(1), b = 11.8643(6), c = 19.081(1) Å, V = 4234.0(4) Å3, Z = 8, R1 = 0.0475, and wR2 = 0.1046. Complex 2 crystallizes in the orthorhombic space group P212121 with unit cell dimensions a = 8.863(2), b = 13.360(2), c = 17.066(3) Å, V = 2020.7(7) Å3, Z = 4, R1 = 0.0803, and wR2 = 0.1859. The Zn atoms in the complexes are four-coordinated in tetrahedral geometry by the phenolate O and imine N atoms of the Schiff base ligands, and two halide or pseudohalide ligands. Crystals of the complexes are stabilized by hydrogen bonds.

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具有四面体配位的席夫碱锌(II)配合物的合成、表征和晶体结构

两个新的单核希夫碱锌(II)配合物，[ZnClL1(N3)]·2MeOH(1)和[ZnBr2(L2)]·MeOH (2) (L1 = 4-甲基-2-[(2-哌嗪-1-基乙基)甲基]酚酸盐;合成了L2 = 2-[(2-二乙基氨基乙基)甲基]-4-甲基苯酚)，并通过元素分析、红外、紫外-可见光谱和单晶x射线衍射对其进行了表征。配合物1在正交空间群Pbca中结晶，晶胞尺寸a = 18.703(1)， b = 11.8643(6)， c = 19.081(1) Å， V = 4234.0(4) Å3, Z = 8, R1 = 0.0475, wR2 = 0.1046。配合物2在正交空间群P212121中结晶，晶胞尺寸a = 8.863(2)， b = 13.360(2)， c = 17.066(3) Å， V = 2020.7(7) Å3, Z = 4, R1 = 0.0803, wR2 = 0.1859。配合物中的Zn原子与席夫碱配体中的酚O和亚胺N原子以及两个卤化物或假卤化物配体呈四面体四配位。配合物的晶体由氢键稳定。

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来源期刊

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry 工程技术-纳米科技

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5 months