Phosphine derivatives of mercury and cadmium dithiolates: an electrospray mass spectrometric study
作者:Alan M. Bond、Ray Colton、John C. Traeger、Justin Harvey
DOI:10.1016/0020-1693(94)04164-q
日期:1995.1
Abstract Electrospray mass spectrometry (ESMS) has been used to investigate the ionic species present in solutions of mercury and cadmium diethyldithiocarbamates (dtc) and diethyldithiophosphates (dtp) after reaction with phosphine ligands. After reaction between the dithiolates (SS) and monodentate ligands, ESMS shows the presence of both [Hg(SS)(PR 3 )] + and [Hg(SS)(PR 3 ) 2 ] + , but only [Cd(SS)(PR
摘要电喷雾质谱(ESMS)已用于研究与膦配体反应后,汞和二乙基二硫代氨基甲酸镉(dtc)和二乙基二硫代磷酸酯(dtp)溶液中存在的离子种类。在二硫醇盐(SS)和单齿配体之间反应后,ESMS显示[Hg(SS)(PR 3)] +和[Hg(SS)(PR 3)2] +均存在,但仅[ Cd(SS)(PR 3)2] +。通过NMR法观察到的1:1的Cd(SS)2膦络合物被认为是中性的Cd(SS)2(PR 3)。所有的金属二硫醇盐与溶液中的多齿配体反应生成的系统在NMR时标上不稳定,但是ESMS显示在每种情况下均存在[M(SS)(phos)] +。这项工作强调了NMR和ESMS技术的互补性。