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单核锰配合物[MnCl_2(4,2-L)_2(H_2O)_2]·2(4,2-L)·2(H_2O)的合成、结构与荧光性质

Synthesis,structure and luminescence of mononuclear manganese complex MnCl_2(4,2-L)_2(H_2O)_2·2(4,2-L)·2(H_2O)
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摘要 合成了一种单核锰配合物[MnCl2(4,2-L)2(H2O)2].2(4,2-L).2(H2O)(4,2-L=N-[(4-吡啶基)甲基]-2-吡啶胺),并且对其进行了元素分析、红外、热重、荧光、粉末及单晶X射线衍射等表征。标题配合物属于三斜晶系,P 1空间群,a=0.938 3(19)nm,b=1.056 1(2)nm,c=1.224 6(2)nm,α=90.997(3)°,β=96.304(3)°,γ=109.39(3)°,V=1.135 9(4)nm3,Z=1,R=0.058 9。Mn(II)位于反演中心,每个Mn(II)离子分别与2个配体中的氮原子、2个氯离子和2个水分子配位,形成了六配位的八面体构型。标题配合物之间通过分子内和分子间氢键作用形成了三维氢键超分子网络结构,同时该配合物在室温下于355 nm处表现出较强的紫色荧光发射。 A mononuclear manganese complex MnCl2(4,2-L)2(H2O)2·2(4,2-L)·2(H2O), (4,2 - L = N - [ (4- pyridyl) methyl] -2 -pyridinyl amine) was synthesized and characterized by elemental analysis, IR, TGA, luminescence, powder and single crystal X-ray diffraction. This triclinic complex belongs to a space group P 1- with parameters: a=0.9383 (19) nm, b=1.056 1 (2) nm, c=1.2246 (2) nm, α=90.997 (3)°,β=96.304 (3)°, γ = 109. 39 (3)°, V = 1. 135 9 (4) nm3, Z- 1, R = 0. 058 9. The Mn (II) ion lies at an inversion center; each Mn (II) ion, respectively, with two nitrogen atoms in 4, 2 -L ligands, two chlorine ions, and two water molecules, forms a six-coordinate octahedron. The intramolecular and intermolecular hydrogen bonds in the complex lead to formation of a three-dimensional supramolecular network structure. At room temperature, the complex exhibits a strong violet luminescence emission at 355 nm.
出处 《黑龙江大学自然科学学报》 CAS 北大核心 2013年第3期364-367,375,共5页 Journal of Natural Science of Heilongjiang University
基金 黑龙江省教育厅科学技术研究项目(12511z023) 哈尔滨医科大学大学生创新项目(2012075) 黑龙江省自然科学基金重点项目(ZD200903) 黑龙江省高等学校科技创新团队(2010td03)的支持
关键词 锰配合物 晶体结构 热稳定性 荧光性质 manganese complex crystal structure thermal stability luminescent property
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