Unexpected oxidation of a diphos­phine by bis­(1,3-diphenylpropane-1,3-dionato)­cobalt(II), [Co(dbm)2].

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Title: Unexpected oxidation of a diphos­phine by bis­(1,3-diphenylpropane-1,3-dionato)­cobalt(II), [Co(dbm)2].
Authors: Harding, David J.1 hdavid@wu.ac.th, Harding, Phimphaka1, Thurakitseree, Theerapol2, Adams, Harry3
Source: Acta Crystallographica: Section C (Wiley-Blackwell). Apr2007, Vol. 63 Issue 4, pm163-m165. 1p. 3 Diagrams, 1 Chart.
Subjects: Phosphine, Oxidation, Organocobalt compounds, Chemical reactions, Polymers, Coordination compounds
Abstract: The reaction of bis­(1,3-diphenylpropane-1,3-dionato)cobalt(II), [Co(dbm)2], with bis­(diphenyl­phosphino)ethane (dppe) affords the coordination polymer catena-poly[[bis­(1,3-diphenyl­propane-1,3-dionato-κ2 O, O′)cobalt(II)]-μ-ethyl­enebis(diphenyl­phosphine oxide)-κ2 O: O′], trans-[Co(C15H11O2)2(C26H24O2P2)] n, as a result of oxidation of the diphos­phine. The Co atom is octa­hedral, with a CoO6 coordination sphere, and the chelating dbm ligands adopt a trans configuration. The Co atom also lies on a centre of inversion, with a further symmetry centre bis­ecting the bridging ethyl­enebis(diphenyl­phosphine oxide) ligand. [ABSTRACT FROM AUTHOR]
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Abstract:The reaction of bis­(1,3-diphenylpropane-1,3-dionato)cobalt(II), [Co(dbm)2], with bis­(diphenyl­phosphino)ethane (dppe) affords the coordination polymer catena-poly[[bis­(1,3-diphenyl­propane-1,3-dionato-κ2 O, O′)cobalt(II)]-μ-ethyl­enebis(diphenyl­phosphine oxide)-κ2 O: O′], trans-[Co(C15H11O2)2(C26H24O2P2)] n, as a result of oxidation of the diphos­phine. The Co atom is octa­hedral, with a CoO6 coordination sphere, and the chelating dbm ligands adopt a trans configuration. The Co atom also lies on a centre of inversion, with a further symmetry centre bis­ecting the bridging ethyl­enebis(diphenyl­phosphine oxide) ligand. [ABSTRACT FROM AUTHOR]
ISSN:01082701
DOI:10.1107/S010827010700933X