Isolation and Characterization of the Molybdenum
Alkylidyne Complex
[(F3C)Me2CO]2Mo(C-t-Bu)[N(Ar)PC(H)(CMe2Ph)] and Its
Conversion to a Phosphamolybdacyclobutene

Jamison, Gregory M.; Saunders, Randall S.; Wheeler, David R.; Alam, Todd M.; McClain, Mark D.; Loy, Douglas A.; Ziller, Joseph W.

doi:10.1021/om960418z.s002

om960418z_si_002.pdf (150.38 kB)

Isolation and Characterization of the Molybdenum Alkylidyne Complex [(F₃C)Me₂CO]₂Mo(C-t-Bu)[N(Ar)PC(H)(CMe₂Ph)] and Its Conversion to a Phosphamolybdacyclobutene

journal contribution

posted on 1996-07-23, 00:00 authored by Gregory M. Jamison, Randall S. Saunders, David R. Wheeler, Todd M. Alam, Mark D. McClain, Douglas A. Loy, Joseph W. Ziller

Novel molybdenum alkylidyne [(F₃C)Me₂CO]₂Mo(C-t-Bu)[N(Ar)PC(H)(CMe₂Ph)] (Ar = 2,6-(i-Pr)₂C₆H₃; 3b) is formed in the reaction of tert-butylphosphaalkyne 2 with molybdenum alkylidene 1b. Alkylidyne 3b, which contains a formal (phosphaalkenyl)amido ligand, rearranges quantitatively at elevated temperature to form the alkoxide-shifted phosphamolybdacyclobutene 4b. Complexes 3b and 4b have been fully characterized by spectroscopic and X-ray crystallographic analysis; cleavage of the P⋮C-t-Bu triple bond in complex 3b is confirmed.