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Synthesis, crystal structure and vibrational spectra of uranium(IV) hypophosphite

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Abstract

The preparation, crystal structure, and infrared spectrum are reported for the new compound U(H2PO2)4. The coordination geometry of uranium is approximately described as a square antiprism. The four independent hypophosphite groups which are bonded to each uranium atom also serve as bridging groups in linking the uranium centers into a three-dimensional network. The internal H2PO −2 vibrational modes in the infrared spectrum of U(H2PO2)4 show unit-cell group couplings, particularly for the P-H stretching vibrations, making the spectrum distinctly different from that of the simple bidentate non-bridging H2PO −2 ion in KH2PO2 and VO(H2PO2)·H2O.

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Authors and Affiliations

  1. Department of Applied Science, City Polytechnic of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong

    Peter A. Tanner & To-Hung Sze

  2. Department of Chemistry, Chinese University of Hong Kong, Shatin, N.T., Hong Kong

    Thomas C. Mak & Wai-Hing Yip

Authors
  1. Peter A. Tanner
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  2. To-Hung Sze
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  3. Thomas C. Mak
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  4. Wai-Hing Yip
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Tanner, P.A., Sze, TH., Mak, T.C. et al. Synthesis, crystal structure and vibrational spectra of uranium(IV) hypophosphite. Journal of Crystallographic and Spectroscopic Research 22, 25–30 (1992). https://doi.org/10.1007/BF01161359

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  • DOI: https://doi.org/10.1007/BF01161359

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