An investigation of the coordination chemistry of the mercaptocarboxylate ligands 3-mercaptopropionate and 5-mercapto-1H-tetrazole-1-acetate
作者:Simeon Atiga、Allen G. Oliver、William Henderson
DOI:10.1016/j.ica.2022.121154
日期:2022.12
PhHg+ and Ph3PAu+, the ligand is monodentate and S-bonded. However, in marked contrast, the palladium MTA and MPA complexes containing a 1,10-phenanthroline (phen) ligand are dinuclear, thiolate-bridged, zwitterionic complexes i.e. [Pd2(μ-MTA)2(phen)2] and [Pd2(μ-MPA)2(phen)2]·7H2O. Interestingly, the complexes of both ligands displayed fragmentation patterns of CO2 loss and CS bond cleavage while the MTA
巯基羧酸盐配体 5-mercapto-1 H -tetrazole-1-acetate (MTA) 和 3-mercaptopropionate (MPA) 与铂 (II)、钯 (II)、镍 (II)、金 (I) 和汞 ( II) 中心已被合成和表征。在辅助膦配体的存在下,铂、钯和镍配合物含有双齿S、O螯合配体,而在 PhHg +和 Ph 3 PAu +的 MTA 配合物中,配体是单齿和S键合的。然而,与此形成鲜明对比的是,含有 1,10-菲咯啉 (phen) 配体的钯 MTA 和 MPA 配合物是双核、硫醇盐桥接的两性离子配合物,即[Pd 2 (μ-MTA)2 (phen) 2 ] 和 [Pd 2 (μ-MPA) 2 (phen) 2 ]·7H 2 O。有趣的是,两种配体的配合物都表现出CO 2损失和CS键断裂的断裂模式,而MTA系统也在 ESI MS 中给出了四唑环的 N 2损失峰。还报道了[Pt(MPA)(PPh