Transition metal nitrosyl compounds, Part XXV1 Studies of some nitrosyl complexes of molybdenum and tungsten

Autor: Johnson, Brian F. G., Khair, Abul, Savory, Christopher G., Walter, Robert H., AI-Obaidi, K. H., AI-Hassam, T. J.
Zdroj: Transition Metal Chemistry; December 1978, Vol. 3 Issue: 1 p81-87, 7p
Abstrakt: Summary On u.v. irradiation, the dinitrosyldithiocarbamato M(NO)2 (S2 CNR2 )2 (M = Mo or W) complexes are converted quantitatively into the mononitrosyl M(NO)(S2CNR2)3 complexes. The tungsten complex exhibits nonrigid behaviour at high temperatures; the activation energy for this process has been determined and compared to that of the molybdenum analogue. The M(NO)2 (MeCOCHCOMe)2 and M(NO)2 [(O)SCNR2]2 compounds have been prepared; these undergo conversion into uncharacterized nitrosyl derivatives upon irradiation. Cationic complexes of the type [M(NO)2 (MeCN)4]2+, [M(NO)2 (MeCN)3 X]+ and [M(NO)2 (MeCN)2 (MeCOCHCOMe)]+ have been prepared and their exchange with CD3CN studied. Exchange occursvia a dissociative process and is stereospecific for [M(NO)2 (MeCN)4 ]2+ (M = Mo or W) and [M(NO)2 (MeCN)3 X]+ (M = MO, X = Cl; M = W, X = Br).
Databáze: Supplemental Index
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