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1978 (1)
1Author    Hans-Friedrich Klein, Reinhard Hammer, Josef Wenninger, Peter Friedrich, Gottfried HuttnerRequires cookie*
 Title    Eine neuartige Assoziation zwischen Kalium und komplex gebundenem DistickstofF -Struktur von KN2Co(PMe3)3 A Novel Association of Potassium and Co-ordinated Dinitrogen - Crystal Structure of KN2Co(PMe3)3  
 Abstract    [(Me3P)3CoN2]2Mg(THF)4 reacts with potassium metal to give [KN2Co(PMe3)3]6. The same compound is obtained via substitution of olefin in cobaltates K + [Co(olefin)(PMe3)3] _ by molecular nitrogen under ambient conditions. Infrared data show that association is preserved even in ether solvents. The stability of cobaltates [Co(PMe3)3L]~ increases in the order L — olefin < dinitrogen < PMe3. Reactions of the title compound proceed as oxidative additions to the monomer with loss of molecular nitrogen. Methyl iodide and allyl bromide yield the fluxional complexes CoCH3(PMe3)4 and ^ 3 -C3H5Co(PMe3)3, respectively. Ethyl bromide gives cis-CoH(C2H4)(PMe3)3 via /3-elimination and coordination of ethylene. The molecular structure of [KN2Co(PMe3)3]6 reveals a novel type of cluster: a double cube made up from six KN2 units with six aro-Co(PMe3)3 groups (d(NN) = 116-118 pm, d(CoN) = 170-171 pm). 
  Reference    Z. Naturforsch. 33b, 1267—1273 (1978); eingegangen am 13. Juli 1978 
  Published    1978 
  Keywords    Potassium-Dinitrogen Cobaltate, Synthesis, Association in Solution, Molecular Structure, Crystal Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-1267.pdf 
 Identifier    ZNB-1978-33b-1267 
 Volume    33