| 基于对羟基苯乙酸及邻菲啰啉的锰配合物的合成、晶体结构、荧光性质及与DNA作用 |
| Synthesis, Crystal Structure, Luminescence Property and DNA-Binding of a Manganese(Ⅱ) Complex with p-Hydroxyphenylacetic Acid and 1,10-Phenanthroline |
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| 摘要: 合成了配合物[Mn(C8H7O3)2(phen)2]·H2O(C8H8O3=对羟基苯乙酸，phen=1，10-邻菲啰啉)，并通过元素分析、红外光谱和热重分析对产物进行了表征，用单晶X-射线衍射方法测定了配合物的晶体结构。配合物属于单斜晶系，空间群C2/c，晶胞参数：a=2.485 1(3) nm，b=0.920 85(3) nm，c=1.718 3(3) nm，β=117.363(10)°，晶胞体积：V=3.492 2(9) nm3，晶胞内结构基元数Z=4，式量Mr=735.64。晶体结构分析表明，Mn(Ⅱ)离子分别与2个对羟基苯乙酸根的2个氧原子和2个1,10-邻菲啰啉中的4个氮原子配位，构成1个畸变的八面体结构。连续的八面体结构基元组成了一维链状聚合结构。另外，用荧光光谱研究了配合物与DNA之间的相互作用。 |
| 关键词: 锰(Ⅱ)配合物 晶体结构 荧光性质 DNA |
| 基金项目: |
| Abstract: A complex of [Mn(C8H7O3)2(phen)2]·H2O (C8H8O3=p-hydroxyphenylacetic acid, phen=1,10-phenanthroline) was synthesized and characterized by elemental analysis, IR and TG-DTG. Its crystal structure was determined by single crystal X-ray diffraction method. The complex crystallizes in monolinic system with space group C2/c, cell parameters: a=2.485 1(3) nm, b=0.920 85(3) nm, c=1.718 3(3) nm, β=117.363(10)°, cell volume: V=3.492 2(9) nm3, number of molecules inside the cell: Z=4, relative molecular mass: Mr=735.64. The crystal structure shows that the manganese ion is coordination with two oxygen atoms from two p-hydroxyphenylacetic acid anions and four nitrogen atoms from two 1,10-phenanthroline molecules, forming a distorted capped octahedral coordination geometry. Successive octahedra related by c glide of eration share edges to generate a one-dimensional polymeric structure. In addtion, the interaction of complex with DNA was also studied by ethidium bromide (EB) fluorescence spectroscopy. CCDC: 848474. |
| Keywords: manganese(Ⅱ) complex crystal structure luminescence property DNA |
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| 吴小勇,刘建风,赵国良.基于对羟基苯乙酸及邻菲啰啉的锰配合物的合成、晶体结构、荧光性质及与DNA作用[J].无机化学学报,2012,28(6):1190-1194. |
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