三苄基和三[(甲基二苯硅基)亚甲基]锡二硫代磷酸酯的研究

Studies of Tribenzyltin and Tri[(methyldiphenylsilyl)-methylene]tin Dithiophosphates

本文合成了七个三苄基锡二硫代磷酸酯和八个三[(甲基二苯硅基)亚甲基]锡二硫代磷酸酯,测定了它们的IR,~1H,^(119)Sn和^(31)P NMR,^(119)Sn NMR的化学位移与磷酸酯的芳环对位取代基Hammett常数呈线性关系,表明该两类化合物均为四价锡的单分子有机锡化合物。

Seven tribenzyltin dithiophosphates and tri[(methyldiphenylsilyl) methylene] iin dithiophosphates were synthesized. The IR, ~1H, ^(119)Sn and ^(31)P NMR were studied. The results have shown that there are two liner relationships between chemical shift ^(119)Sn and Hammett constant of the para-substituent of the aryl groups on the dithiophosphates of the two kinds compounds: δ_(119Sn(PbCH_(?)))=11.55σ+7.38 r=0.988 δ_(119Sn(Ph(?)MeSlCH_(?))=123.89σ+19.75 r=0.986 All spectra data also have shown that they are four-coordination compounds.