【摘要】 将(n-Bu2Sn)2O(二正丁基氧化锡)与有机酸HL(HL=2-(2-甲氧基-4-甲酰基苯氧基)乙酸)在苯中进行脱水,用乙醇重结晶,获得新型二正丁基锡羧酸酯[(n-Bu2Sn)4(L)2O2(OC2H5)2](1).采用元素分析、1HNMR、FT-IR和晶体结构测定等手段对其进行了结构表征.结果表明:3个双锡双氧环构成以平面Sn2O2为中心的对称梯形二聚体结构;2个环内Sn原子为五配位,构成以Sn原子为中心的扭曲三角双锥构型;2个环外Sn原子均为六配位,构成以Sn原子为中心的扭曲单加帽三角双锥构型.更多还原

【Abstract】 The complex [（n-Bu₂Sn）₄（L）₂O₂（OC₂H₅）₂]（1）[where,HL is 2-（2-methoxy-4-formylphenoxy）acetic acid]has been prepared and structurally characterized by means of elemental analysis,1H NMR and FT-IR spectroscopies.The crystal structures of 1 has been determined by X-ray crystallography.Three distannoxane rings are present to the centrosymmetric dimeric tetraorganodistannoxane by virtue of μ₃-oxo form the central Sn₂O₂ core with a planar Sn₂O₂ ring,resulting in a ladder type structural motif in the molecular structure of 1,and five-coordinated tin atoms are present in the distannoxane dimer.Two endo-cyclic internal tin atoms adopt distorted trigonal bipyramidal geometry with five-coordinated;Two exo-cyclic tin atoms adopt distorted monocapped trigonal bipyramidal geometry with six-coordinated.更多还原