Synthesis, characterization and molecular structure of 1,1′ bis(diphenylphosphino ferrocene)dioxide complex of uranyl nitrate |
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Authors: | Shanmugaperumal Kannan Sadhan B. Deb |
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Affiliation: | a Fuel Chemistry Division, Bhabha Atomic Research Center, Mumbai, India b Radioanalytical Chemistry Division, Bhabha Atomic Research Center, Mumbai, India c Department of Chemistry, The University of Reading, P.O. Box 224, Whitenights, Reading RG6 6AD, UK |
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Abstract: | A 1,1′ bis(diphenylphosphino ferrocene)dioxide complex of uranyl nitrate was synthesized and characterized by IR, 1H and 31P{1H} NMR spectroscopic and X-ray diffraction methods. The structure of the compound shows that the uranium atom is surrounded by eight oxygen atoms in a hexagonal bi-pyramidal geometry. Two oxygen atoms from 1,1′ bis(diphenylphosphino ferrocene)dioxide ligand and four oxygen atoms from the nitrate groups form a planar hexagon. The two uranyl oxygen atoms occupy the axial position. The 1,1′ bis(diphenylphosphino ferrocene)dioxide ligand acts as a bidentate chelating ligand with a bite angle of 71.56(8)° around the uranium(VI) atom, which is much smaller in value compare to any of the previously reported values (90.1°-154.0°) for this ligand. |
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Keywords: | Bis(diphenylphosphino ferrocene)dioxide Uranyl nitrate Bidentate chelate Coordination mode and X-ray structure |
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