Advertisement

Transition Metal Chemistry

, Volume 11, Issue 4, pp 121–122 | Cite as

Preparation and properties of complexes of chromium(II) with some oxo-anions of phosphorus(V)

  • L. F. Larkworthy
  • K. A. R. Salib
Full Papers

Summary

Complexes of chromium(II) with diphenylphosphinate, Cr(O2PPh2)2 · H2O, diphenylphosphate Cr{O2P(OPh)2} · 1/2H2O, phenylphosphinate, Cr(O2PHPh)2 · 2H2O, phenyl-phosphonate, Cr(O3PPh) · H2O, and monofluorophosphate, Cr{O2P(OH)F}2 · H2O, are high-spin. From their reflectance spectra and antiferromagnetic behaviour the last three are believed to be three-dimensional polymers with R2PO 2 bridges in which some O atoms bridge two Cr atoms, leading to magnetic interaction. The other complexes show only weak magnetic interaction, and the reflectance spectra of Cr(O2PPh2)2 and its hydrate indicate that both contain planar CrO4 units. It is therefore believed to be a linear polymer with the Cr atoms well separated by double R2PO 2 bridges. The reflectance spectrum of Cr{O2P(OPh)2}2 suggests additional weak coordination of O atoms from adjacent polymer chains.

Keywords

Polymer Phosphorus Hydrate Chromium Polymer Chain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. (1).
    F. A. Cotton and R. A. Walton,Multiple Bonds Between Metal Atoms, Wiley, New York, 1982.Google Scholar
  2. (2).
    A. Earnshaw, L. F. Larkworthy and K. S. Patel,J. Chem. Soc., 3267 (1965).Google Scholar
  3. (3).
    A. J. Saraceno and B. P. Block,Inorg. Chem., 3, 1699 (1964).Google Scholar
  4. (4).
    K. D. Maguire,Inorg. Synth., 12, 258 (1970).Google Scholar
  5. (5).
    H. D. Gillman,Inorg. Chem., 13, 1921 (1974).Google Scholar
  6. (6).
    A. Earnshaw, L. F. Larkworthy, K. C. Patel and G. Beech,J. Chem. Soc., (A), 1334 (1969).Google Scholar
  7. (7).
    C. M. Mikulski, J. Unruh, D. F. Delacato, F. J. Iaconianni, L. L. Pytlewski and N. M. Karayannis,J. Inorg. Nucl. Chem., 43, 1751 (1981).Google Scholar
  8. (8).
    H. D. Gillman and J. L. Eichelberger,Inorg. Chem., 15, 840 (1976).Google Scholar

Copyright information

© VCH Verlagsgesellschaft mbH 1986

Authors and Affiliations

  • L. F. Larkworthy
    • 1
  • K. A. R. Salib
    • 1
  1. 1.Department of ChemistryUniversity of SurreyGuildfordUK

Personalised recommendations