Bromination of molybdenum carbonyls revisited: oxo complexes and routes to new materials chemistry
作者:James R. Backhouse、Helen M. Lowe、Ekkehard Sinn、Shigeru Suzuki、Simon Woodward
DOI:10.1039/dt9950001489
日期:——
The use of in situ [MoBr(mu-Br)(CO)(4)}(2)] led to considerably improved preparations of [MoBr2(CO)(3)(PPh(3))(2)] for which the rate of decarbonylation to [MoBr2(CO)(2)(PPh(3))(2)] is greatly increased by refluxing under reduced pressure (15-20 mmHg). Attempts to prepare [MoBr2- (CO)(2)P(C6H11)(3)}(2)] by Br-2 addition to cis- or trans-[Mo(CO)(4)P(C6H11)(3)}(2)] led to [HP(C6H11)(3)][Mo-(=0)Br(4)L] [L = OP(C6H11)(3) or H2O]. The OP(C6H11)(3) complex maybe used as a catalyst for the epoxidation of cyclohexene or for the addition of singlet oxygen to alpha-terpinene (1-isopropyl-4-methylcyclohexa-1, 3-diene). The species [HP(C6H11)(3)] [Mo(=0)Br-4OP(C6H11)(3)}] was adsorbed onto sodium montmorillonite in a new type of reaction for sodium montmorillonite involving multiple abstractions of NaBr from the complex anion. In solution [HP(C6H11)(3)][Mo(=0)Br-4OP(C6H11)(3)}] also decomposes to crystalline [Mo(=0)(2)Br-2OP(C6H11)(3)}(2)] which is monoclinic, space group C2/c [a = 27.15(5), b = 8.486(8), c = 18.49(2) Angstrom, beta = 110.94(7)degrees].
Molybdenum(II) and tungsten(II) M(Co)(RC2R')L2X2 alkyne complexes
作者:P. B. Winston、S. J. N. Burgmayer、T. L. Tonker、J. L. Templeton
DOI:10.1021/om00139a032
日期:1986.8.1
Greenwood, N. N.; Kennedy, J. D.; Macpherson, I., Zeitschrift fur Anorganische und Allgemeine Chemie
作者:Greenwood, N. N.、Kennedy, J. D.、Macpherson, I.、Thornton-Pett, M.
DOI:——
日期:——
Murphy Simmons, Anne-Marie; Mills, Nancy S.; Iyer, Savithri R., Inorganica Chimica Acta, 1986, vol. 116, p. 43 - 46
作者:Murphy Simmons, Anne-Marie、Mills, Nancy S.、Iyer, Savithri R.