具有 N2O2 配位球的超分子锌（II）配合物的合成、晶体结构和光谱性质。
Synthesis, crystal structure and spectroscopic properties of a supramolecular zinc(II) complex with N2O2 coordination sphere.
机构信息
School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2014;121:324-9. doi: 10.1016/j.saa.2013.10.072. Epub 2013 Nov 5.
A new hexa-coordinated zinc(II) complex, namely [ZnL(H2O)2]n, with N2O2 coordination sphere (H2L=4,4'-dibromo-6,6'-dichloro-2,2'-[ethylenedioxybis(nitrilomethylidyne)]diphenol) has been synthesized and structurally characterized by elemental analyses, IR, UV-vis spectra and TG-DTA analyses, etc. Crystallographic data are monoclinic, space group P2(1)/c, a=24.634(2)Å, b=10.144(1)Å, c=7.9351(6)Å, β=91.371(2)°, V=1982.4(3)Å(3), Dc=2.099 g/cm(3), Z=4. The zinc(II) complex exhibits a slightly distorted octahedral geometry with halogen-substituted Salen-type bisoxime forming the basal N2O2 coordination sphere and two oxygen atoms from two coordinated water molecules in the axial position. The hydrogen-bonding and π-π stacking interactions have stabilized the zinc(II) complex molecules to form a self-assembling infinite dual metal-water chain-like structure with the nearest Zn⋯Zn distance of 4.954(4)Å.
一种新的六配位锌（II）配合物，即[ZnL（H2O）2]n，具有 N2O2 配位球（H2L=4,4'-二溴-6,6'-二氯-2,2'-[乙二氧基双（亚氨基甲基）]二苯酚），已通过元素分析、IR、UV-vis 光谱和 TG-DTA 分析等方法合成并进行了结构表征。晶体学数据为单斜晶系，空间群 P2(1)/c，a=24.634(2)Å，b=10.144(1)Å，c=7.9351(6)Å，β=91.371(2)°，V=1982.4(3)Å(3)，Dc=2.099 g/cm(3)，Z=4。锌（II）配合物呈现出略微扭曲的八面体几何形状，卤素取代的Salen 型双肟形成了基底的 N2O2 配位球，两个来自两个配位水分子的氧原子位于轴向位置。氢键和π-π堆积相互作用稳定了锌（II）配合物分子，形成了自组装的无限双金属-水链状结构，最近的 Zn⋯Zn 距离为 4.954(4)Å。
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