| Syntheses and Crystal Structures of Two Diethyltin Complexes of N-Salicylidene-α-amino Acid |
| |
| 作者姓名： | 田来进 杨红军 王伟 倪中海 |
| |
| 作者单位： | TIAN Lai-Jin(Department of Chemistry, Shandong University, Jinan 250100, China;Department of Chemistry, Qufu Normal University, Qufu 273265, China);YANG Hong-Jun,WANG Wei(Department of Chemistry, Qufu Normal University, Qufu 273265, China);NI Zhong-Hai(Department of Chemistry, Shandong University, Jinan 250100, China) |
| |
| 基金项目： | 国家自然科学基金,the Post-Doctor Innovation Project of Shandong Province,the Key Laboratory of Colloid Interface Chemistry of Ministry of Education |
| |
| 摘 要： | Two novel diethyltin（IV） complexes of N-salicylidenevaline （H2L1） and N-Sali- cylidenetryptophan （H2L^2）, Et2SrtL^1 1 and Et2SnL^2 2, were synthesized and characterized by elemental analysis, IR, ^1H NMR and X-ray single-crystal diffraction analysis. Complex 1 belongs to the trigonal system, space group R-3 with a = b = 19.2730（5）, c = 23.6890（13）A^°, V= 7620.4（5） A^°^3, Z = 6, Dc= 1.553 g/cm^3,μ= 1.518 mm^-1, F（000） = 3600, R = 0.0238 and wR = 0.0636. Complex 2 is of monoelinie system, space group P21/c with a = 13.7550（8）, b = 11.5425（7）, c = 12.7876（7）A^°, β= 93.585（1）°, V = 2026.3（2） A^°^3, Z = 4, Dc= 1.548 g/cm^3,μ = 1.286 mm^-1, F（000） = 976, R = 0.0298 and wR = 0.0722. Complex 1 is a cyclic trimer with a macrocyclic 12-membered ring structure formed by the bidentate bridging coordination of carboxylate group to tin atoms. The tin atom is six-coordinated in a distorted octahedral geometry. In complex 2, the distorted trigonal bipyramidal Et2SnL2 units are linked into polymeric chains by the weak Sn…O interaction involving Sn and the earbonyl O of an adjacent ligand, and the chains are further connected by intermolecular N-H…O hydrogen bonds to form a two-dimensional supramolecular structure.
|
| 关 键 词： | 晶体结构 亚水杨基 合成 氨基酸 超分子结构 锡原子 配合物 元素分析 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
