Photoinduced configurational instability at iron in the aminocarbene complexes [(η5-C5H5)Fe(CO)(L){=C(NHR2)(CH2R1)}]+BF4-
Davies SG., Jones S., Metzler MR., Yanada K., Yanada R.
Photoinduced epimerisation of chiral iron aminocarbene complexes of the type [(η5-C5H5)Fe(CO)(L)-{=C(NHR2)(CH2R1)}]+BF4-[L = PPh3, P(p-tolyl)3; R1= H, Me; R2= CH2Ph, CH(Me)Ph] has been observed in 10% H2O-MeOH, MeOH, EtOH, THF and CH2Cl2at room temperature. Exchange experiments have unambiguously established that reversible phosphine ligand (L) dissociation rather than reversible loss of the carbon monoxide ligand is the only mechanism operating.