(Phosphine)gold(I) trifluoromethanesulfonates, trifluoroacetates and trichlorothioacetates †
作者:Max Preisenberger、Annette Schier、Hubert Schmidbaur
DOI:10.1039/a809714c
日期:——
[Tri(o-tolyl)phosphine]gold chloride was converted into the trifluoromethanesulfonate (triflate) in 95% yield by treatment with AgOS(O)2CF3 in tetrahydrofuran. The crystal structure determination of the CH2Cl2 solvate revealed non-ionic, molecular components [Au–O 2.110(3) Å, S–O–Au 120.4(2)°], which are associated into dimers via hydrogen bonds [O· · ·H–C 170.2°, C–H 0.969 Å, H· · ·O 2.575 Å] with two CH2Cl2
(R 3 P)AuOC(O)CF 3类型的稳定的结晶(膦)金(I)三氟乙酸盐已由相应的氯配合物与AgOC(O)CF 3在四氢呋喃中的R = Me进行了高收率的制备, Ph或o- Tol。(Me 3 P)AuOC(O)CF 3的晶体结构具有三聚体,在角Au ··· Au ··· Au单元中具有两个短的亲金Au ··· Au触点。Trichlorothioacetic酸已经aurated使用[(R(高收率)3 P)的Au] 3 ö} + BF 4 -和的NaBF 4在二氯甲烷中得到同样稳定的化合物(R 3 P)AuSC(O)CCl 3,其中R = Me,Ph或邻-Tol。在这些产品中,三氯硫代乙酸酯基团仅硫键合到金原子上。甲基和邻甲苯基化合物是固态的二聚体,但缔合仅基于非常长的分子间Au ··· S和Au ····Cl分别接触。类似地制备了(三苯基膦)金硫代乙酸盐,但是该产物在固体和溶液状态