The π-acceptor effect in the substitution reactions of tridentate N-donor ligand complexes of platinum(ii): a detailed kinetic and mechanistic study
作者:Peter Ongoma、Deogratius Jaganyi
DOI:10.1039/c2dt31041d
日期:——
The nucleophilic substitution reactions of complexes [Pt4′-(2′′′-CH3-phenyl)-2,2′:6′,2′′-terpyridine}Cl]CF3SO3, [CH33PhPtCl], [Pt4′-(2′′′-CH3-phenyl)-6-(3′′-isoquinoyl)-2,2′bipyridine}Cl]SbF6, [CH33PhisoqPtCl], [Pt2-(2′-pyridyl)-1,10-phenanthroline}Cl]Cl, [pyPhenPtCl], and [Pt(terpyridine)Cl]+, [PtCl] with a series of nucleophiles: thiourea (TU), N,N-dimethylthiourea (DMTU), N,N,N,N-tetramethylthiourea
复合物的亲核取代反应[铂' - - (2'''CH 4 3 ':6' -苯基)-2,2,2'' -三联吡啶} CL] CF 3 SO 3,[ CH 3 3PhPtCl ] [铂4' - (2''' - CH 3 -苯基)-6-(3'' - isoquinoyl)-2,2'bipyridine} CL]的SbF 6,[ CH 3 3PhisoqPtCl ],[铂2 - (2'-吡啶基)-1,10菲咯啉}]氯氯,[ pyPhenPtCl ]和[铂(三联吡啶)CL] +,[氯铂酸]与一系列亲核试剂的:硫脲 (TU), N,N-二甲基硫脲(DMTU),Ñ,Ñ,Ñ,Ñ -tetramethylthiourea(TMTU),I - ,溴-和SCN -在0.1M LiCF研究3 SO 3在甲醇(在10mM LiCl的存在下)。所研究的络合物的反应性如下顺序pyPhenPtCl >氯铂酸> CH 3