Structural parameters for the incomplete cuboidal cluster cation: [Nb₃(µ₃-Cl)(µ-O)₃(OH₂)₉]⁴⁺ in solutions of acid hydrolysed trivalent niobium from Nb K edge EXAFS

Abstract

A niobium K edge EXAFS study on the green solutions obtained following hydrolysis of NbCl₃(dme) in aqueous non-oxidising strong acids has shown that the major species resulting in these solutions is the incomplete cuboidal chloride-capped triangular niobium cation, [Nb₃(µ₃-Cl)(µ-O)₃(OH₂)₉]⁴⁺.

References

1. S. Minhas and D. T. Richens, J. Chem. Soc., Dalton Trans., 1996, 703.
2. S. Minhas, A. Devlin, D. T. Richens, A. C. Benyei and P. Lightfoot, J. Chem. Soc., Dalton Trans., 1998, 953.
3. F. A. Cotton, M. P. Diebold, R. Llusar and W. J. Roth, J. Chem. Soc., Chem. Commun., 1986, 1276.
4. B.-L. Ooi, T. Shibahara, G. Sakane and K.-F. Mok, Inorg. Chim. Acta, 1997, 266, 103.
5. G. Lente, A. M. Dobbing and D. T. Richens, Inorg. React. Mech., 1998, 1, 3.
6. J. R. Osman, D. T. Richens and J. A. Crayston, Inorg. Chem., 1998, 37, 1665.
7. EPSRC (UK) Daresbury Laboratory Program Library, 1991.
8. N. Binsted, J. W. Campbell, S. J. Gurman and P. L. Stephenson, EPSRC (UK) Daresbury Laboratory Program Library, 1992; N. Binsted, R. W. Strange and S. S. Hasnain, Biochemistry, 1992, 31, 12 117.
9. U. von Barth and L. Hedin, Int. J. Phys., 1972, C5, 1629.
10. N. Binsted, J. Evans, N. G. Greaves and R. J. Price, Organometallics, 1989, 8, 613.
11. T. Shibahara, H. Akashi, S. Nagahata, H. Hattori and H. Kuroya, Inorg. Chem., 1989, 28, 362.
12. F. A. Cotton, M. P. Diebold, X. Feng and W. J. Roth, Inorg. Chem., 1988, 27, 3414.