190856-65-6Relevant academic research and scientific papers
[Li(dime)2][W(CO)5I] as a novel synthon for the preparation of silyl, amino and organyl derivatives of pentacarbonyl tungsten (dime = diethylene glycol dimethyl ether)
Palitzsch,Boehme,Roewer
, p. 803 - 804 (1997)
The one-pot reactions of M(CO)6 with dime in the presence of LiI-Et2O give [Li(dime)2][M(CO)5I] (M = W 1, Mo 2); the reaction of 1 with LiSiMe2Ph, LiN(SiMe3)2 and PhCH2MgCl affords the novel complexes [Li(dime)2][W-(CO)5R] [R = SiMe2Ph 3a, N(SiMe3)2 3b, CH2Ph 3c].
Preparation, characterization, and properties of various novel ionic derivatives of pentacarbonyltungsten
Palitzsch, Wolfram,Beyer, Christian,B?hme, Uwe,Rittmeister, Ben,Roewer, Gerhard
, p. 1813 - 1820 (2007/10/03)
The complexes [Li(DIME)2][W(CO)5L] [L = OCN 2, NCS 3a, PPh2 4, SiMe2Ph 8, N(SiMe3)2 9, CH2Ph 10, Si6Me11 11; DIME = diethylene glycol dimethyl ether] have been prepared by reaction of [Li(DIME)2][W(CO)5I] (1) with KOCN, KSCN, NaPPh2, LiSiMe2Ph, LiN(SiMe3)2, PhCH2MgCl, and KSi6Me11, respectively. Photochemical ligand substitution in W(CO)6 has been used as an alternative method for the preparation of pentacarbonyl tungstates; [K(DIME)2][W(CO)5NCS] (3b), [Na(DIME)2][W(CO)5N3] (5), [Li(DIME)2][W2(CO)10(υ-H)] (6), and [K(DIME)2][W2(CO)10(υ-CN)] (7) were synthesized in this manner. The molecular structure of [Li(DIME)2][W(CO)5Si6Me11] (11) has been determined by X-ray diffraction analysis. The spectral and chemical properties of 2-11 are discussed. Pyrolysis of 11 leads to tungsten silidde and tungsten carbide.
