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Chalkogenide als Komplexliganden, I. Carbonyl-Hydrogenchalkogenid-Komplexe von Chrom, Molybdaen und Wolfram
Hausmann, Heinz,Hoefler, Mathias,Kruck, Thomas,Zimmermann, Heinz Willi
, p. 975 - 981 (2007/10/02)
The hexacarbonyls of chromium, molybdenum, and tungsten yield the monosubstitution complexes M' (M = Cr, Mo, W; X = S, Se, Te) 1 - 7 on photochemical or thermal reaction with chalkogenides in alcohols.They are isolated as + - or + salts 1a - 7a, respectively.On alkylation of 1a, 4a, and 6a with the dialkylchalkogenide complexes (CO)5Cr(XEt2) (X = S, Se, Te) 8 - 10 are formed.The preparation of XH-bridged complexes of the type - (M = Cr, W; X = S, Se, Te) 11 - 16 can be accomplished by reacting 1a, 3a - 7a with M(C O)5THF.Treatment of 11, 13, and 15 with leads to loss of a M(CO)5 group and formation of the compounds 8 - 10.The photochemical reaction of Mo(CO)6 with Li2S yields 2- 17.
