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'Iron and Cobalt Glyoximato Pyrazine Complexes' in keywords
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1981 (1)
1Author    Frank Kübel, Joachim SträhleRequires cookie*
 Title    Polymere Dimethyl-und Diphenylglyoximatokomplexe des Cobalts und Eisens mit Pyrazin als Brückenligand. Die Kristallstruktur des Bis(dimethylglyoximato)pyrazin-cobalt(II) + Polymeric Dimethyl-and Diphenylglyoximato Complexes of Cobalt and Iron with Pyrazine as a Bridging Ligand. The Crystal Structure of Bis(dimethylglyoximato)pyrazine Cobalt(II)+  
 Abstract    Polymeric bis(dimethyl-and diphenylglyoximato)-complexes of Fe(II) and Co(II) with pyrazine as a bridging ligand have been synthesized. The Co(II) complexes are para-magnetic with n = 1.83 B.M., and surprisingly stable against oxidation. Bis (dimethyl-glyoximato)pyrazine-cobalt (II) crystallizes monoclinic in the space group C2/m with Z = 2. The crystal structure shows linear chains of alternating Co atoms and pyrazine ligands. Perpendicular to the chain, the Co atoms are coordinated in a square planar arrangement by two dimethylglyoximato ligands (Co-N= 189 pm), the local symmetry being C2h-The long Co-pyrazine distance of 224 pm is in agreement with the fact that the compound is a 19 electron complex. The Co complexes do not have conducting properties. The Fe(II) complexes possess the same structure but with stronger bonds in the chain. They show very low conductivity of approximately 10 -10 cm -1 Q~ l . The Mössbauer spectra of the Fe-complexes are reported. 
  Reference    Z. Naturforsch. 36b, 441—446 (1981); eingegangen am 16. Januar 1981 
  Published    1981 
  Keywords    Iron and Cobalt Glyoximato Pyrazine Complexes, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0441.pdf 
 Identifier    ZNB-1981-36b-0441 
 Volume    36