122444-51-3Relevant academic research and scientific papers
Electrophilic reactions of zerovalent tungsten nitrene and hydrazido complexes with phosphines. Synthesis and structure of (CO)4W[PPh2CH2PPh2NNMe2]
Arndtsen, Bruce A.,Sleiman, Hanadi F.,McElwee-White, Lisa,Rheingold, Arnold L.
, p. 2440 - 2444 (2008/10/08)
The low-valent hydrazido complex (CO)5W=NNMe2 (2) reacts with bis(diphenylphosphino)-methane (DPPM) to yield the metallacyclic phosphinimine complex (CO)4W[PPh2CH2-PPh2NNMe2] (5). Mechanistic studies and extended Hückel molecular orbital calculations suggest that formation of 5 occurs via a highly unusual nucleophilic attack of phosphine at Nα of the hydrazido ligand. Complex 5 has been characterized spectroscopically as well as by X-ray crystallography: P21/n; a = 10.797(3) ?, b = 22.761(3) ?, c = 12.257(2) ?, β = 90.92(4)°, V = 3011.8(11) ?3, Z = 4, R(F) = 3.87%, R(wF) = 4.69%, for 4292 reflections, F ≥ 5.0σ(F).
