J. Amaudrut, J. Sala-Pala, J. Guerchais
Sep 14, 1982
Citations
0
Influential Citations
24
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Carbon disulphide reacts with niobium complexes [Nb(η-C5H5)2(Me)2] and [Nb(η-C5H5)2H (CH2CHC2H5)] to produce the new η2-CS2 derivatives [Nb(η-C5H5)2(Me)(η2-CS2)] (1) and [Nb(η-C5H5)2(Bu) (η2-CS2)] (2) respectively. Treatment of 1 and 2 with methyl iodide affords the respective cationic η2- dithioalkyl ester complexes [Nb(η-C5H5)2(Me) {η2-C(S)SMe}] I (3) and [Nb(η-C5H5)2(Bu) {η2-C(S)SMe}] I (4). Hetero-dinuclear complexes [(Bu)-(η-C5H5)2Nb(η-CS2)M(CO)n] (M Cr, Mo, W; n 5. M Fe; n 4) and [(Bu)-(η-C5H5)2Nb(μ-CS2)Mn(CO)2(η-CH3C5H4)] and an homodinuclear complex [(Bu)(η-C5H5)2Nb(μ-CS2)Nb(η-C5H5)2(Bu)] have been synthesized. The structure of the niobium—tungsten derivative has been determined by single-crystal X-ray diffraction. Crystal data are space group P21/c, a 12.935(4), b 12.742(4), c 14.565(4) A, β 103.27(3)°, Z 4. The Nb(μ-CS2)W unit is planar within ±0.06 A. The CS2 group is η2-bonded to niobium through a CS linkage and σ-bonded to manganese through the other sulfur atom. The 13C NMR spectra indicate that 2 has a larger σ-donor/π-acceptor ratio than CO.