两个基于双salamo型配体的镍(Ⅱ)和锌(Ⅱ)配合物的合成、结构、Hirshfeld分析和荧光性质
Syntheses, Structures, Hirshfeld Analyses and Fluorescent Properties of Two Ni(Ⅱ) and Zn(Ⅱ) Complexes Constructed From a Bis(salamo)-like Ligand
作者单位E-mail
刘玲芝 兰州交通大学化学与生物工程学院, 兰州 730070  
于盟 兰州交通大学化学与生物工程学院, 兰州 730070  
李肖妍 兰州交通大学化学与生物工程学院, 兰州 730070  
康全鹏 兰州交通大学化学与生物工程学院, 兰州 730070  
董文魁 兰州交通大学化学与生物工程学院, 兰州 730070 dongwk@126.com 
摘要: 合成了2个新的基于双(salamo)型配体H4L的镍(Ⅱ)和锌(Ⅱ)配合物[Ni3(L)(μ-OAc)2(CH3OH)3]·CH3OH·0.25CHCl31)和[Zn3(L)(μ-OAc)2(CH3OH)(H2O)]·2CH3OH(2),并通过元素分析、红外光谱、紫外-可见吸收光谱、X射线单晶衍射、热稳定性(TGA)和Hirshfeld表面分析对其进行了结构表征。X射线晶体学分析表明:配合物1为非对称三核构型,其3个镍(Ⅱ)原子均为六配位,形成了一个稍微扭曲的八面体构型,而配合物2是一个对称的三核结构,中心的锌(Ⅱ)原子是六配位的,具有一种扭曲的八面体构型,与众不同的是另外2个锌(Ⅱ)原子是五配位的,表现为扭曲的三角双锥构型。此外,配合物121通过氢键和C-H…π相互作用形成了三维超分子结构。最特别的是,配合物12的荧光性质截然不同。
关键词: 双salamo型配体  配合物  合成  Hirshfeld分析  荧光性质
基金项目: 国家自然科学基金(No.21761018)资助项目
Abstract: Two new homo-trinuclear Ni(Ⅱ) and Zn(Ⅱ) complexes,[Ni3(L)(μ-OAc)2(CH3OH)3]·CH3OH·0.25CHCl3 (1) and[Zn3(L)(μ-OAc)2(CH3OH) (H2O)]·2CH3OH (2) with a newly synthesized C-type bis(salamo)-like ligand H4L have been prepared and structurally characterized. The structures of complexes 1 and 2 were fully characterized by elemental analyses, FT-IR, UV-visible spectroscopy, single crystal X-ray crystallography, thermal analyses (TGA) and Hirshfeld surfaces analyses, and their luminescence properties were also discussed. The X-ray crystallography analyses demonstrated that complex 1 is an asymmetric trinuclear structure, and all Ni(Ⅱ) ions are hexa-coordinated, forming distorted octahedral geometries. Meanwhile, complex 2 is a symmetric trinuclear structure, the central Zn2 ion is hexa-coordinated and possesses a distorted octahedral coordination geometry. However, the terminal Zn1 and Zn1#1 ions are both penta-coordinated environments and adopt distorted trigonal bipyramidal geometries. In addition, 3D supramolecular architectures of complexes 1 and 2 were formed by hydrogen bonding and C-H…π interactions. Most importantly, the fluorescent property of complex 2 is totally different from that of complex 2.
Keywords: bis(salamo)-like ligand  complex  synthesis  Hirshfeld analysis  fluorescence property
投稿时间:2019-01-20 修订日期:2019-04-29
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刘玲芝,于盟,李肖妍,康全鹏,董文魁.两个基于双salamo型配体的镍(Ⅱ)和锌(Ⅱ)配合物的合成、结构、Hirshfeld分析和荧光性质[J].无机化学学报,2019,35(7):1283-1294.
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