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1981 (2)
1Author    Volker Bätzel, Roland BoeseRequires cookie*
 Title    Synthesis and Structure of 1,2,3-Thiadiazol-and 1,2,3-Selenadiazol-Pentacarbonyl-Complexes of the Elements Chromium and Tungsten  
 Abstract    From the reactions of (THF)M(CO)5 (M = Cr, W) with 4-phenyl-l,2,3-thiadiazol, 4-methyl-5-carboxylic acid-l,2,3-thiadiazol, 4-methyl-5-carboxylic acid ethyl ester-1,2,3-thiadiazol and 4-methyl-l,2,3-selenadiazol, pentacarbonyl-complexes are obtained as air stable compounds. IR spectra of products of similar reactions with M = Mo provide some evidence of the formation of analogous complexes. The thiadiazol complexes are also accessible directly, by photochemical displacement of carbonmonoxid in THF from the parent carbonyl. The X-ray structures of pentacarbonyl-(4-phenyl-l,2,3-thiadiazol)-tungsten and pentacarbonyl-(4-methyl-l,2,3-selenadiazol)-chromium show the coordina-tion of the ligand to the pentacarbonyl-metal-fragment via the nitrogen in position 2. 
  Reference    Z. Naturforsch. 36b, 172—179 (1981); eingegangen am 15. Oktober/21. November 1980 
  Published    1981 
  Keywords    1, 2, 3-Thiadiazoles, 1, 2, 3-Selenadiazoles, Pentacarbonyl Complexes 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0172.pdf 
 Identifier    ZNB-1981-36b-0172 
 Volume    36 
2Author    Herbert Meier, Johannes Zountsas, Oswald ZimmerRequires cookie*
 Abstract    A X H and 13 C NMR spectroscopical study is performed on the basis of 37 1,2,3-selena-diazoles. Besides the discussion of chemical shifts and coupling constants of X H and 13 C, selenium satellites were measured providing 1 H 77 Se and 13 C 77 Se coupling constants. 
  Reference    Z. Naturforsch. 36b, 1017—1022 (1981); eingegangen am 16. April 1981 
  Published    1981 
  Keywords    NMR Spectra, 1, 2, 3-Selenadiazoles, 77 Se Coupling 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1017.pdf 
 Identifier    ZNB-1981-36b-1017 
 Volume    36