Km. Smith et al., Ligand dissociation accelerated by spin state change: locating the minimumenergy crossing point for phosphine exchange in CpMoCl2(PR3)(2) complexes, NEW J CHEM, 24(2), 2000, pp. 77-80
The minimum energy crossing point between the doublet and quartet potential
energy surfaces of CpMoCl2(PH3)(2) is calculated to lie 4.8 kcal mol(-1) l
ower in energy than the doublet dissociative intermediate CpMoCl2(PH3). Imp
lications for the influence of spin state changes on the rates of organomet
allic reactions are discussed.