ic0483242_si_001.pdf (196.88 kB)
Reduction of Tris(benzene-1,2-dithiolate)molybdenum(VI) by Water. A Functional Mo−Hydroxylase Analogue System
journal contribution
posted on 2005-06-13, 00:00 authored by Antonio Cervilla, Francisco Pérez-Pla, Elisa Llopis, María PilesMoVI(S2C6H4)3 reacts cleanly and completely with H2O in THF to
afford [H3O]+[MoV(S2C6H4)3]-. Kinetic data were fit by the rate
equation −d[MoVI(S2C6H4)3]/dt = k[MoVI(S2C6H4)3]/[H3O+], which is
consistent with a coupled electron−proton transfer mechanism
involving a coordinated H2O molecule. The MoVI(S2C6H4)3 reduction
is accelerated by the presence of PPh3 and affords OPPh3. 18O
isotope tracing shows that H2O is the source of oxygen transferred
to PPh3.