Abstract
The crystals of the title compound are monoclinic, space groupP21/c witha=9.014(1),b=9.8668(5)c=17.5000(3) Å,β=91.50(1)°,V=1556(1) Å3. The structure was determined by Patterson methods and refined by least squares toR=0.038 for 3829 observed reflections and 224 parameters. There are two tungsten dimers in the unit cell, each formed by a bridging oxygen lying on a center of symmetry. Each tungsten has five more coordination sites; two occupied by terminal oxygens and the remaining three by citrate oxygens. Waters of crystallization are distributed throughout the cell and together with various of the anion oxygens, make the sodium cations either five-or six-coordinate.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Alcock, N. W., Dudek, M., Grybos, R., Hodorwicz, E., Kanas, A., and Samotus, A., (1990)J. Chem. Soc. Dalton Trans. 707.
Cervilla, A., Ramirez, J. A., and Llopis, E. (1986)Trans. Met. Chem. 11, 186.
Cotton, F. A., Morehouse, S. M., and Wood, J. S. (1964)Inorg. Chem. 3, 1603.
Cromer, D. T., and Liberman, D. (1970)J. Chem. Phys. 53, 1891.
Cromer, D. T., and Mann, J. B. (1968)Acta Crystallogr. A 24, 321.
Cruywagen, J. J., Kruger, L., and Rohwer, E. A. (1991)J. Chem. Soc. Dalton Trans. 1727, and references cited therein.
Knobler, C. B., Wilson, A. J., Hider, R. N., Jenson, I. W., Penfold, B. R., Robinson, W. T., and Wilkins, C. J. (1983)J. Chem. Soc. Dalton Trans. 1299.
Motherwell, W. D. S. (1974)PLUTO, Structure plotting program, personal communication. 6.
Nardelli, M. (1983)Comput. Chem. 7, 95.
Nassimbeni, L. R., Niven, M. L., Cruywagen, J. J., and Heyns, J. B. B., (1987a)J. Crystallogr. Spectrosc. Res. 17, 373.
Nassimbeni, L. R., Niven, M. L., Cruywagen, J. J., and Heyns, J. B. B., (1987b)J. Crystallogr. Spectrosc. Res. 17, 99.
North, A. C. T., Phillips, D. C., and Mathews, F. S. (1968)Acta Crystallogr. A 24, 351.
Porai-Koshits, M. A., Aslanov, L. A., Ivanova, G. V., and Polynova, T. N. (1968)J. Struct. Chem. (Engl. Transl.),9, 401.
Robinson, W. T., and Wilkins, C. J. (1986)Trans. Met. Chem. 11, 86.
Sheldrick, G. M. (1978)SHELX-76. in H. Schenk, R. Olthof-Hazekamp, H. von Koningdveld and G. C. Bassi (eds.),Computing in crystallography (Delft University Press, Delft) p. 34.
Stewart, R. F., Davidson, E. R., and Simpson, W. T. (1965)J. Chem. Phys. 42, 3175.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Cruywagen, J.J., Saayman, L.J. & Niven, M.L. Complexation between tungsten(VI) and citrate: The crystal and molecular structure of a dinuclear complex, Na6[W2O5(cit)2]·10H2O. Journal of Crystallographic and Spectroscopic Research 22, 737–740 (1992). https://doi.org/10.1007/BF01160995
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01160995