Cationic diaryltriazene, hydrido(diaryltriazenido)-, and diarylacetamidine complexes of rhodium and iridium

Abstract

Protonation of [M(CO)L2(RNNNR)] with HBF4 affords either [IrH(CO)L2(RNNNR)][BF4](1; L = PPh3, R =p-MeC6H4 or p-FC6H4; L = PMePh2. R =p-FC6H4) or [M(CO)L2(RNNNHR)][BF4](2; M = Rh, L = PPh3, R = Ph, p-MeC6H4, or p-FC6H4). Complexes (2; M = Rh or Ir), and [M(CO)L2{MeC(NR)NHR}][BF4](3; M = Rh or Ir, L = PPh3, R = Ph or p-MeC6H4), may be prepared directly from the appropriate diaryltriazene or diarylacetamidine and [M(CO)L2(OCMe2)][BF4].