Transition-metal chemical shifts in complexes of molybdenum(0) and tungsten(0)
作者:Geoffrey T. Andrews、Ian J. Colquhoun、William McFarlane、Samuel O. Grim
DOI:10.1039/dt9820002353
日期:——
methods respectively for 65 related derivatives of [Mo(CO)6] and [W(CO)6] with (mainly) phosphorus ligands. The chemical shifts of the two nuclei are remarkably parallel, those for l83W being ca. 1.7 times more sensitive to changes in chemical environment than those for 95Mo. The chemical shifts are temperature-dependent, and trends in them can be largely accounted for by variations in the mean electronic
Conjugate additions of functionalized carbanions to the vinylidene groups of [M(CO)4{(Ph2P)2CCH2}] (M = W, Mo or Cr)
作者:Andrew M. Herring、Salme H. Koskimies、Bernard L. Shaw
DOI:10.1016/0022-328x(80)83003-8
日期:1980.1
Treatment of complexes of the type [M(CO)4(Ph2P)2CCH2}] (M = W, Mo or Cr) with functionalized lithium reagents, LiR, followed by hydrolysis gives complexes of the type [M(CO)4PH2P)2CHCH2R}] in high yields; R = C6H4Me-4, C6H4OMe-2, C6H3(OMe)2-2,6, C6H4OH-2, C6H4(COOH)-2, CH2COPh or CH2COMe. IR, and 31P and 1H NMR data are given.
的类型的复合物的治疗[M(CO)4 (PH 2 P)2 CCH 2 }](M = W,Mo或Cr)的用官能化锂试剂,LIR,随后水解得到所述式的配合物[ M(CO)4 PH 2 P)2 CHCH 2 R}]的高收率;R = C 6 H 4 Me-4,C 6 H 4 OMe-2,C 6 H 3(OMe)2 -2,6,C 6 H 4 OH-2,C 6 H 4(COOH)-2,CH 2 COPh或CH 2来。给出IR,31 P和1 H NMR数据。
Bookham, Jonathan L.; McFarlane, William; Colquhoun, Ian J., Journal of the Chemical Society, Dalton Transactions, 1988, p. 503 - 508
作者:Bookham, Jonathan L.、McFarlane, William、Colquhoun, Ian J.
DOI:——
日期:——
Fontaine, Xavier L.R.; Kennedy, John D.; Shaw, Bernard L., Journal of the Chemical Society, Dalton Transactions, 1987, p. 2401 - 2406
作者:Fontaine, Xavier L.R.、Kennedy, John D.、Shaw, Bernard L.、Vila, Jose M.
DOI:——
日期:——
A novel synthesis of vinylidene diphosphine complexes of type [M(CO)4{Ph2PC(CH2)PPh2}], (M = W or Cr)