含吡咯三齿席夫碱配体的单核铜(Ⅱ)配合物的合成、晶体结构和性质(英文) |
Synthesis, Crystal Structure and Properties of Monomeric Copper(Ⅱ) Complexes of Pyrrole-Containing Tridentate Schiff-Base Ligands |
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摘要: 合成和表征了两个类似的三齿席夫碱配体(L1)-和(L2)-的铜(Ⅱ)配合物[CuL1I] (1)和[CuL2I] (2)(HL1为2-(2-pyridyl)-N-[1-(1H-pyrrol-2-yl)ethylidene]ethanamine;HL2为N-[1-(1H-pyrrol-2-yl)ethylidene](2-pyridyl)methanamine),并用红外光谱、电喷雾质谱、紫外-可见光谱、单晶X-射线衍射和热重分析等手段对配合物进行了表征。对配合物1的X-射线晶体结构测定表明它是一个畸变的平面正方形单核铜(Ⅱ)配合物。晶体结构还表明,除了配体的柔性和空间限制外,分子间的相互作用也是影响铜(Ⅱ)配合物结构的因素。 |
关键词: 铜(Ⅱ)配合物 席夫碱 吡咯 三齿配体 |
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Abstract: Two copper(Ⅱ) complexes of the homologous tridentate Schiff-base ligands (L1)- and (L2)-, [CuL1I] (1) and [CuL2I] (2), have been synthesised and characterised by IR, ES-MS, UV-Vis, single crystal X-ray diffraction and thermogravimetric analysis ((L1)- and (L2)- are the deprotonated forms of 2-(2-pyridyl)-N-[1-(1H-pyrrol-2-yl)ethylidene]ethanamine (HL1) and N-[1-(1H-pyrrol-2-yl)ethylidene](2-pyridyl)methanamine (HL2), respectively). X-ray crystal structure determination carried out on 1 reveals that it is a distorted square planar copper(Ⅱ) monomer. The crystal structure indicates that the intermolecular interaction is also a factor which can influence the structural properties of copper(Ⅱ) complexes in addition to ligand flexibility and steric constraints. CCDC: 862124. |
Keywords: copper(Ⅱ) complex Schiff-base pyrrole tridentate ligand |
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全文下载次数: 1994 |
李荣清,赵朴素,张 宇,张载超,刘仲雨,赵 振.含吡咯三齿席夫碱配体的单核铜(Ⅱ)配合物的合成、晶体结构和性质(英文)[J].无机化学学报,2012,28(5):1025-1030. |
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