Formation of iridium fluoroacyl complexes by reaction of iridium carbonyls with XeF2 and reactions of these to generate unusual acyl complexes
作者:E. A. V. Ebsworth、Neil Robertson、Lesley J. Yellowlees
DOI:10.1039/dt9930001031
日期:——
Fluoroacyl complexes of iridium have been prepared by reaction of XeF2 with iridium carbonyl complexes [Ir(CO)3L2]+(L = PMe3, PMe2Ph, PEt2Ph or PEtPh2), [Ir(CO)2Cl(PMe3)2] and [Ir(CO)-(PMe3)4]+. The reaction can be viewed as an unusual type of oxidative addition and this is supported by the need for strongly electron-donating phosphines for reaction to occur. The complex [Ir(CO)2F(COF)-(PEt3)2]+ reacts
铱的氟酰基配合物已经被制备的XeF的反应2与铱羰基配合物[Ir(CO)3大号2 ] +(L = PME 3,PME 2 PH,PET 2 PH或PEtPh 2),的[Ir(CO)2 Cl(PMe 3)2 ]和[Ir(CO)-(PMe 3)4 ] +。该反应可以看作是一种不常见的氧化加成反应,这是由于需要强供电子膦来进行反应而得到支持的。络合物[Ir(CO)2 F(COF)-(PEt 3)2 ]+与SiH 3 X(X = CN,NCS或NCO)反应,得到酰基络合物[Ir(CO) 2 F(COX)(PEt 3) 2 ] +,与BF 3反应,得到[Ir(CO) 3 F( PEt 3) 2 ] 2+。该指示进一步与PMe 3反应,得到酰基产物,其中PMe 3与羰基配体结合。配合物[Ir(CO) 3(PPh 3) 2 ] +与XeF 2 + BF 3反应生成[Ir(CO) 3 F(PPh 3)2 ]