Displacement of triphenylphosphine from Cu(PPh3)2NO3 and Co(PPh3)2Cl2 by a diselenoimidodiphosphinato ligand. X-ray cryst. structure of (PPh3)Cu[Ph2P(Se)NP(Se)Ph2] and Co[Ph2P(Se)NP(Se)Ph2]2 containing the novel CuSe2P2N and CoSe2P2N inorg. metallocycles

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Authors	NOVOSAD Josef NEČAS Marek MAREK Jaromír VELTSISTAS Panagiotis PAPADIMITRIOU Christos HAIDUC Ionel WATANABE Makoto WOOLLINS Derek J.
Year of publication	1999
Type	Article in Periodical
Magazine / Source	Inorganica Chimica Acta
MU Faculty or unit	Faculty of Science
Citation	NOVOSAD, Josef, Marek NEČAS, Jaromír MAREK, Panagiotis VELTSISTAS, Christos PAPADIMITRIOU, Ionel HAIDUC, Makoto WATANABE and Derek J. WOOLLINS. Displacement of triphenylphosphine from Cu(PPh3)2NO3 and Co(PPh3)2Cl2 by a diselenoimidodiphosphinato ligand. X-ray cryst. structure of (PPh3)Cu[Ph2P(Se)NP(Se)Ph2] and Co[Ph2P(Se)NP(Se)Ph2]2 containing the novel CuSe2P2N and CoSe2P2N inorg. metallocycles. Inorganica Chimica Acta. USA: Elsevier Science, 1999, vol. 290, No 2, p. 256-260. ISSN 0020-1693.
Field	Inorganic chemistry
Keywords	crystal structures; copper complexes; diselenoimidodiphosphinato complexes
Description	The reaction of Cu(PPh3)2NO3 with K[Ph2P(Se)-N-P(Se)Ph2] produced a tricoordinate copper(I) complex, Cu(PPh3)[Ph2P(Se)-N-P(Se)Ph2], containing the novel inorganic (carbon-free) CuSe2P2N metallocycle. The same diselenium reagent gave with Co(PPh3)2Cl2 a spirobicyclic compound Co[Ph2P(Se)-N-P(Se)Ph2]2, containing the novel inorganic CoSe2P2N metallocycle. The crystal structure of the two compounds was investigated by X-Ray diffraction. In both compounds the inorganic metallocycles are nonplanar and display strongly distorted twisted boat conformations.
Related projects:	Structure and character of bonding, properties and analysis of synthetic and natural molecular ensembles