Evidence for the fluxionality and structure in solution of intermediates of the type W(CO)4(L) (L = lewis base)
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Evidence based on amine substitution reactions in W(CO)4(tmpa) (tmpa = N,N,N,N-tetramethyl-l,3-diaminopropane) and cis-(C5H10NH)(PPh3)W(CO)4 with PPh3 and 13CO indicates (a) that the square pyramidal [W(CO)4PPh3] intermediate arising from amine dissociation is fluxional, and (b) that the intermediate containing PPh3 in the equatorial plane of the square pyramid is thermodynamically more stable than that containing PPh3 in the axial position. 1976.
Journal of Organometallic Chemistry
author list (cited authors)
Darensbourg, D. J., Dobson, G. R., & Moradi-araghi, A.
complete list of authors
Darensbourg, Donald J||Dobson, Gerard R||Moradi-araghi, Ahmad