Mn(CO)[sub 5]C(O)-p-C[sub 6]H[sub 5]CH[sub 3]-catalyzed hydrosilane SiH/SiD exchange. Evidence from a kinetics study implicating coordinatively unsaturated manganese silyl intermediates

Journal Article · Tue Jun 01 04:00:00 EDT 1993 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00030a006· OSTI ID:6258275

Gregg, B T; Cutler, A R ^[1]

---

1. Rensselaer Polytechnic Inst., Troy, NY (United States)

The manganese p-toluoyl complex Mn(CO)[sub 5]C(O)-p-CH[sub 3]C[sub 6]H[sub 4] catalyzes SiH/SiD exchange between DSiMe[sub 2]Ph and HSiMe[sub 2]Et at room temperature in C[sub 6]D[sub 6]. The preequilibrium kinetics are consistent with a second-order isotope exchange reaction; plots of initial velocities [nu] against [HSiMe[sub 2]Et] further established saturation kinetics. Lineweaver-Burk plots are in accord with a ping-pong bi-bi mechanism that operates under rapid equilibrium conditions and involves coordinatively unsaturated manganese silyls, (CO)[sub 4]MnSiMe[sub 2/R], as active catalysts. 29 refs., 2 figs.

• OSTI ID: 6258275
• Journal Information: Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 12:6; ISSN 0276-7333; ISSN ORGND7
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CATALYSIS
COMPLEXES
DEUTERIUM COMPOUNDS
HYDROGEN COMPOUNDS
ISOTOPIC EXCHANGE
KINETICS
MANGANESE COMPLEXES
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
REACTION KINETICS
SILICON COMPOUNDS
TRANSITION ELEMENT COMPLEXES