Geminal dimetallic compounds derived from bis-diphenyl-N-trimethylsilylphosphiniminomethane

INOR 41

Kenneth W. Henderson, khenders@nd.edu, Katherine L. Hull, hull.22@nd.edu, and Bruce C. Noll, bnoll@nd.edu. Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN 46556
Reactive carbanions serve as important building blocks in synthetic organic chemistry. However, in many instances these compounds have proven difficult to structurally characterize due to complexities associated with stabilizing reactive species in the solid state. This is particularly true for geminal dimetallics, a class of materials which consist of two metal centers bonded to a single carbon center. Several solution-phase dimetallated complexes have been used in organic synthesis, but there are only a few reported cases of pure geminal dimetallic structures that have been characterized in the solid state. We have recently synthesized several geminal dimetallics derived from CH2(PPh2NSiMe3)2 (where Ph=phenyl and Me=methyl), including [Na2C(PPh2NSiMe3)2]2, [LiNaC(PPh2NSiMe3)2]2, and [LiKC(PPh2NSiMe3)2]2. Complementary NMR kinetics studies have been conducted to elucidate the solution dynamics of these complexes.
 

Main Group
9:00 AM-11:20 AM, Sunday, 10 September 2006 Moscone Center -- Room 307, Oral

Division of Inorganic Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006