New η-cycloheptatrienyl tungsten compounds and the intercalation of [M(η-C7H7)(η-C5H4Me)](M = Mo or W) into ZrS2
- 1 January 1993
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 21,p. 3213-3217
- https://doi.org/10.1039/dt9930003213
Abstract
The compound [W(η-C7H7)(η-C7H9)]1 is formed in gram quantities by reduction of WCl6 with sodium amalgam in the presence of cycloheptatriene. The compound 1 with iodine in acetonitrile gives [W(η-C7H7)(MeCN)I2]2 and this reacts with PMe3 forming [W(η-C7H7)(PMe3)I2]. Oxidation of 1 with bromine in acetonitrile yields [W(η-C7H7)(MeCN)Br2] and with bromine in tetrahydrofuran followed by addition of PMe3 gives [W(η-C7H7)(PMe3)Br2]. Reduction of 2 with sodium amalgam in the presence of 1,2-bis(dimethylphosphino)ethane (dmpe) affords [W(η-C7H7)(dmpe)I]. Compound 2 also reacts with Na(C5H4R)(R = H or Me) and lithium indenide to give the mixed-sandwich compounds [W(η-C7H7)(η-C5H4R)](R = H or Me) and [W(η-C7H7)(η-C9H7)] respectively. The sandwich compounds [M(η-C7H7)(η-C5H4Me)](M = Mo or W) and ZrS2 form the intercalates {ZrS2[M(η-C7H7)(η-C5H4Me)]x}.Keywords
This publication has 25 references indexed in Scilit:
- One-dimensional antiferromagnetic cycloheptatrienyl molybdenum and tungsten compoundsJ. Chem. Soc., Dalton Trans., 1993
- η-1,2,4,6-Tetramethylcycloheptatrienyl molybdenum chemistryJ. Chem. Soc., Dalton Trans., 1993
- η-Cycloheptatrienyl tungsten chemistryJournal of the Chemical Society, Chemical Communications, 1992
- New synthetic pathways in η-cycloheptatrienyl molybdenum chemistryJournal of the Chemical Society, Chemical Communications, 1992
- Structure of an Organometallic Intercalate: Single Crystal X‐Ray and Powder Neutron Diffraction Study of [SnS2{Co(η‐C5H5)2}0.31] and [SnS2{Co(η‐C5D5)2}0.31]Angewandte Chemie International Edition in English, 1991
- A comparison of the rates of intramolecular hydrogen migration in the molecules [Mo(η-C7H8)2]n+to give [Mo(η-C7H7)(η-C7H9)]n+, n= 0 or 1: crystal structures of [Mo(η-C7H8)2], [Mo(η-C7H7)(η-C7H9)], and [Mo(η-C7H8)2][BF4]J. Chem. Soc., Dalton Trans., 1989
- η3- and η7-Cycloheptatrienyltungsten chemistry: synthesis of [W (η5-C7H9)(η3-C7H7)(PMe3)2] and [W(η-C7H7)(η3-C7H11)(PMe3)]J. Chem. Soc., Dalton Trans., 1988
- Organometallic intercalates of the layered transition-metal dichalcogenides tantalum sulfide (TaS2) and zirconium sulfideInorganic Chemistry, 1978
- Synthesis with tungsten and molybdenum atoms. Reactions with cyclopentadiene and cycloheptatrieneJournal of the American Chemical Society, 1975
- Über Aromatenkomplexe von Metallen, CXII. Über Cyclopentadienyl‐cycloheptatrienyl‐π‐Komplexe von Molybdän(0) und Wolfram(0), ihre einwertigen Kationen sowie ein Cyclopentadienyl‐benzol‐wolfram(II)‐hydridEuropean Journal of Inorganic Chemistry, 1970