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Global Journal of Inorganic Chemistry. Volume 2, Issue 1 (2011) pp. 1-4
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Research Article
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Crystal structure of bis(diphenylphosphino)ethane monoxide, the first R2P(CH2)nP(O)R2 ligand to be structurally characterized
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Ashley R. Heada, Donna S. Amentaa, John W. Giljea, Glenn P. A. Yapb
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a Department of Chemistry and Biochemistry, MSC 4501, James Madison University,
Harrisonburg, VA 22807, USA
b Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
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Abstract |
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Despite an extensive
coordination chemistry, no crystal structures are available for members of the R2P(CH2)nP(O)R2
ligand class. The first member of
this class to be structurally characterized is (C6H5)2PCH2CH2P(O)(C6H5)2,
which crystallizes in the monoclinic
space group, Pn with crystal cell parameters a = 12.752(4) Å, b = 5.6664(17) Å, c = 16.110(5) Å, and β = 110.819(4)o, V = 1088.1(6) Å3, and Z = 2. The geometry
about the phosphine and phosphoryl
moieties bears close resemblance to that of the analogous groups in (C6H5)2PCH2CH2P(C6H5)2
and (C6H5)2P(O)CH2CH2P(O)(C6H5)2,
respectively.
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Keywords |
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Phosphine; Phosphine oxide; Hemilabile ligand
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