TY - JOUR
T1 - Synthesis, structure, and oxidation-induced dimerization of a cheating bis(phosphite) Ruthenium carbonyl
AU - Moasser, Bahram
AU - Gross, Christopher
AU - Gladfelter, Wayne L
N1 - Funding Information:
The researchw as supported by a grant from the National ScienceF oundation( CHE-9223433).
PY - 1994/5/31
Y1 - 1994/5/31
N2 - The novel bis(phosphite) compound Ru(bbmb)(CO)3 (1) {bbmb: 2,2′-bis[(1,1′-bipheny]-2,2′-diyl)phosphite]-3,3′-di-t- butyl-5,5′-di-methoxy-1,1′-biphenyl} was synthesized by the high pressure reaction of Ru3(CO)12 with bbmb, and fully characterized by combustion, spectroscopic, spectrometric and structural analysis. The structure of 1, as determined by X-ray diffraction, is a nearly perfect trigonal bipyramid with the bbmb ligand coiled about Ru in an overall C2 fashion. Reaction of 1 with [Cp2Fe][PF6] gave [Ru2(μ-bbmb)2(CO)6][PF6]2 (2) whose formulation is based on combustion and spectroscopic analysis. It is shown that 2 contains a pair of bridging bbmb ligands. The significance of 1 in relation to structure- activity in the regioselectivity of the hydroformylation reaction is discussed. Formation of 2 from 1 is addressed in the context of the reactivity of pentacoordinate radical cation complexes.
AB - The novel bis(phosphite) compound Ru(bbmb)(CO)3 (1) {bbmb: 2,2′-bis[(1,1′-bipheny]-2,2′-diyl)phosphite]-3,3′-di-t- butyl-5,5′-di-methoxy-1,1′-biphenyl} was synthesized by the high pressure reaction of Ru3(CO)12 with bbmb, and fully characterized by combustion, spectroscopic, spectrometric and structural analysis. The structure of 1, as determined by X-ray diffraction, is a nearly perfect trigonal bipyramid with the bbmb ligand coiled about Ru in an overall C2 fashion. Reaction of 1 with [Cp2Fe][PF6] gave [Ru2(μ-bbmb)2(CO)6][PF6]2 (2) whose formulation is based on combustion and spectroscopic analysis. It is shown that 2 contains a pair of bridging bbmb ligands. The significance of 1 in relation to structure- activity in the regioselectivity of the hydroformylation reaction is discussed. Formation of 2 from 1 is addressed in the context of the reactivity of pentacoordinate radical cation complexes.
KW - Bis(phosphite)
KW - Carbonyl
KW - Crystal structure
KW - Ruthenium
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U2 - 10.1016/0022-328X(94)88126-X
DO - 10.1016/0022-328X(94)88126-X
M3 - Article
AN - SCOPUS:0000586063
SN - 0022-328X
VL - 471
SP - 201
EP - 209
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1-2
ER -