Phosphine oxide complexes of protactinium, niobium, and tantalum pentachlorides
- 1 January 1966
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 258-261
- https://doi.org/10.1039/j19660000258
Abstract
Phosphine oxide complexes of protactinium, niobium, and tantalum pentachloride, MCl5,R3PO [M = Pa, Nb, and Ta; R = C6H5 and N(CH3)2] and MCl5,R2R′PO (M = Pa and Ta; R = C6H5; R′= C6H5·CH2), have been prepared in anhydrous methyl cyanide and methylene dichloride. Niobium(V), but not protactinium(V), forms an oxychloro-complex, NbOCl3,2(C6H5)3PO, in the presence of an excess of triphenylphosphine oxide. Some chemical properties, infrared spectra, and X-ray powder diffraction data are reported.Keywords
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