Abstract
A new phosphoryl-containing ligand based on 4-aminoantipyrine-N-(1,5-dimethyl-3-oxo-2-phenyl-1,2-dihydropyrazol-4-yl)-P,P-diphenylamidophosphinate (L) was synthesized. In crystals, the L molecules were found to be combined in centrosymmetric dimers through N-H…O=C hydrogen bonds. The complexes of L with neodymium(III), erbium(III), thorium(IV), and uranyl nitrates were obtained, and their structures were determined. The bands of the C=O and P=O groups in the IR spectra of these complexes are shifted toward low frequencies (by 50–65 and 40–70 cm−1, respectively), which is indicative of a bidentate coordination of the organophosphorus ligand. According to the X-ray crystallography data, uranyl is bidentately coordinated by both the L molecule (through the C=O and P=O groups) and two nitrate anions.
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Original Russian Text © E.I. Matrosov, I.B. Goryunova, K.A. Lysenko, M.S. Grigor’ev, A.M. Safiulina, E.I. Goryunov, E.E. Nifant’ev, 2011, published in Zhurnal Neorganicheskoi Khimii, 2011, Vol. 56, No. 4, pp. 579–584.
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Matrosov, E.I., Goryunova, I.B., Lysenko, K.A. et al. N-(1,5-dimethyl-3-oxo-2-phenyl-1,2-dihydropyrazol-4-yl)-P,P-diphenylamidophosphinate and its complexes with neodymium(III), erbium(III), thorium(IV), and uranyl nitrates: Synthesis and crystal and molecular structure. Russ. J. Inorg. Chem. 56, 539–544 (2011). https://doi.org/10.1134/S003602361104019X
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DOI: https://doi.org/10.1134/S003602361104019X