The rhodium and iridium co-ordination chemistry of the hemilabile hybrid ligand 1-(2′-pyridyl)-3-dimethylamino-2-propen-1-one
作者:Ana P Martı́nez、Marı́a P Garcı́a、Fernando J Lahoz、Luis A Oro
DOI:10.1016/s0020-1693(02)01449-4
日期:2003.4
O ligand to CH2Cl2 solutions of [MCl(diolefin)}2] leads to the ion-pair complexes [M(diolefin)(N,O)][MCl2(diolefin)] (M=Rh or Ir; diolefin=1,5-cyclooctadiene, COD, or tetrafluorobenzo-bicyclo(2,2,2)octatriene, TFB). The complexes have been characterised by analytical and spectroscopic data, their configuration has been confirmed by COSY and NOESY experiments and the structure of [Rh(COD)(N,O)][RhCl2(COD)]
式[M(L 2)(N,O)] CF 3 SO 3 [M = Rh或Ir; L 2=二烯烃,(CO)2或(CO)(PPh 3);制备了N,O = 1-((2′-吡啶基)-3-二甲基氨基-2-丙烯-1-酮]。N,O杂化配体通过酮氧和吡啶氮配位为作为二齿螯合基团的金属。还研究了这些络合物对卤素,碘甲烷或三氟甲磺酸的氧化加成反应以提供八面体铑(III)或铱(III)物种的反应性。将N,O配体添加到[MCl(di烯烃)} 2的CH 2 Cl 2溶液中]导致离子对络合物[M(二烯烃)(N,O)] [MCl 2(二烯烃)](M = Rh或Ir;二烯烃= 1,5-环辛二烯,COD或四氟苯并双环(2, 2,2)辛三烯,TFB)。配合物已通过分析和光谱数据表征,其构型已通过COZY和NOESY实验确认,[Rh(COD)(N,O)] [RhCl 2(COD)]的结构已通过X-射线衍射研究。