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
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.
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