Syntheses and Structural Characterization of Dimethyltin Complexs of N-(3-Methoxysalicylidene)-α-amino Acid |
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作者姓名: | DANG Yan-Qiu YANG Hong-Jun TIAN Lai-Jin |
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作者单位: | Department of Chemistry and Chemical Engineering,Binzhou University;Department of Chemistry,Qufu Normal University;Research Center for Eco-environmental Sciences of the Yellow River Delta,Binzhou University |
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基金项目: | supported by the Natural Science Foundation of Shandong Province (ZR2010BL012);thescientific research projects of Binzhou University (BZXYG0901,BZXYQNLG200912,BZXYFB20100403) |
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摘 要: | Three new dimethyltin complexes of N-(3-methoxysalicylidene)-α-amino acid,(CH3)2Sn(3-CH3O-2-OC6H3CH=NCHRCOO)(R = H,1;CH3,2;(CH3)2CH,3),have been synthe-sized by treating dimethyltin dichloride with the potassium salt of the ligand and characterized by elemental analysis,IR and 1H NMR spectra.The crystal structure of [(CH3)2Sn(3-CH3O-2-OC6H3CH=NCH2COO)(CH3OH)]2 H2O(1a),formed from methanol solution of 1,has been deter-mined.The crystal belongs to the monoclinic system,space group C/2c with a = 20.636(3),b = 7.8854(9),c = 20.668(2) ,β= 113.265(2)°,V = 3089.7(6) 3,Z = 4,Dc = 1.707 g/cm3,= 1.675 mm-1,F(000) = 1592,R = 0.0301 and wR = 0.0841.In complex 1a,the tin atom is six-coordinate and possesses a distorted [SnC2NO3] octahedral geometry with the two methyl groups occupying the trans positions.The weak Sn O interactions and intermolecular hydrogen bonds connected the molecules into an infinite chain.
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关 键 词: | 二甲基 配合物 氨基酸 结构表征 合成 晶体结构 甲醇溶液 CH3 |
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