Reaction of bis(?-hydroxyethyl)phenylphosphine with phenylarsine oxide and dimethyl ester of phenylarsenous acid
作者:O. A. Erastov、I. P. Romanova、N. A. Chadaeva
DOI:10.1007/bf01167801
日期:1983.1
Synthesis and crystal structure of a molybdenum carbonyl complex, Mo(CO)4[cyclo(Ph6P3As3)], with scrambled phosphorus/arsenic identities obtained from a perfectly alternating phosphorus-arsenic heterocycle, 1,3,5-tris(phenylphospha)-2,4,6-tris(phenylarsa)cyclohexane, [cyclo(Ph6P3As3)]
作者:Arnold L. Rheingold、Frederick P. Arnold
DOI:10.1016/s0020-1693(00)92354-5
日期:1992.8
1,3,5-Tris(phenylphospha)-2,4,6-tris(phenylarsa)cyclohexane, cyclo(Ph6As3P3), whose perfectly alternating pnictogen structure was determined by the absence of direct P-P coupling in NMR spectra, reacts with MO(CO)6 at 80-degrees-C to form a complex, Mo(CO)4[C-(Ph6As3P3)], containing completely scrambled phenylpnictidene units. The structure of the complex has been crystallographically determined: monoclinic, P2(1)/n, a = 11.756(3), b=22.691(9), c = 14.777 angstrom, beta = 99.89(2)-degrees, V = 3883.5(22) angstrom3, Z = 4, R, = 5.66%. The original chair conformation of the heterocycle is converted to a twist-boat form in the product, but the presence of concentrated phosphorus character in the 1 and 4 positions coordinated to Mo indicates that ring-opening and ring-scrambling equilibria preceded complex formation.
EROLITOV, O. A.;ROMANOVA, I. P.;CHADAEVA, N. A., IZV. AN CCCP. CEP. XIM., 1983, N 1, 235
作者:EROLITOV, O. A.、ROMANOVA, I. P.、CHADAEVA, N. A.
DOI:——
日期:——
ERASTOV, O. A.;ROMANOVA, I. N.;EFREMOV, YU. YA.;ILYASOV, A. V.;ZYABLIKOVA+, IZV. AN CCCP. CEP. XIM., 1983, N 5, 1152-1155
作者:ERASTOV, O. A.、ROMANOVA, I. N.、EFREMOV, YU. YA.、ILYASOV, A. V.、ZYABLIKOVA+