α-二亚胺配体的硅(Ⅳ)配合物的合成、晶体结构与性能研究
Synthesis, Crystal Structure and Properties of Silicon(Ⅳ) Complexes with N-aryl Substituted α-Diimine Ligands
作者单位E-mail
马小莉 北京理工大学化工与环境学院,北京 100081 maxiaoli@bit.edu.cn 
孙帅 北京理工大学化工与环境学院,北京 100081  
杨鹰 中南大学化学与化工学院,长沙 410083  
摘要: 利用金属单质还原的方法合成了不同取代基的α-二亚胺配体支持的2个硅(Ⅳ)配合物L(SiMe3)2(2)(L=[(2,6-iPr2C6H3)NC(Me)]2)和L'(SiMe3)2(4)(L'=[(2,6-iPr2C6H3)NCH]2)。通过X-射线单晶衍射测定了配合物的单晶结构,并对其进行了元素分析、1H NMR、红外光谱表征,以及紫外-可见光谱和荧光光谱分析。结构分析表明,构成这2种化合物中心的NCCN骨架呈之字形分布,骨架上三取代的原子接近平面排布。2种硅配合物在紫外光激发下都具有较好的发光性质。
关键词: α-二亚胺  晶体结构  硅(Ⅳ)配合物  光致发光
基金项目: 国家自然科学基金(No.21001016, 20902112)资助项目。
Abstract: Two silicon(Ⅳ) compounds with α-diimine ligands, L(SiMe3)2(2) (L=[(2, 6-iPr2C6H3)NC(Me)]2), L'(SiMe3)2 (4) (L'=[(2, 6-iPr2C6H3)NCH]2) were synthesized by the reaction of corresponding sodium salts or lithium salts with chloro(trimethyl)silane. The crystal of compound 2 belongs to the monoclinic system, space group P21/n with a=0.958 5(3) nm, b=1.811 8(5) nm, c=0.982 4(3) nm, β=102.173(3), V=1.667 7(8) nm3, Z=2. The crystal of compound 4 belongs to the triclinic system, space group P1 with a=0.883 7(2) nm, b=0.967 5(2) nm, c=1.142 9(4) nm, β=88.94(2), V=0.835 8(4) nm3, Z=1. A zig-zag arrangement of the atoms N(1), C(13), C(13i), and N(1i) is the core of both of the two molecular structures. Both of the two complexes were characterized by single crystal X-ray structural analysis, 1H NMR, elemental analysis, and FTIR spectra, analyzed by UV-Vis spectrum and fluorescent spectra properties. The compounds exhibit strong fluorescence under ultraviolet light. CCDC: 896958, 2; 896957, 4.
Keywords: α-diimine  crystal structure  silicon(Ⅳ) complex  photoluminescence
投稿时间:2012-08-31 修订日期:2013-02-02
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马小莉,孙帅,杨鹰.含α-二亚胺配体的硅(Ⅳ)配合物的合成、晶体结构与性能研究[J].无机化学学报,2013,29(6):1295-1301.
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