Abstract
The synthesis and crystal structure of a novel hydrate of lithium cyclohexaphosphate are reported. Li6P6O18·10H2O crystallizes in the space group C2/c with a = 15.113(5), b = 12.006(2), c = 15.892(2) Å, β = 122.85(2)°, and Z = 4. The structure consists of P6O18 ring layers stacked along the c direction in between which are located the lithiumions and water molecules. Two LiO4 tetrahedra share common edges with LiO5 pseudosquare pyramids to form two independant Li3O9 units. About 50% of the water molecules have fractional occupancy rates and form fragments of molecules. A linear relationship is established between the relative cell volume V/Z and the hydration degree, n, for all the known hydrates: Li6P6O18·nH2O.
Similar content being viewed by others
References
Schulke, U.; Kayser, R.Z. Anorg. Allg. Chem. 1985, 531, 167.
Trunov, W.K.; Kholodkovskaya, L.N.; Borodina, L.A; Chudinova, N.N. Kristallografyia 1989, 34, 748.
Bagieu-Beucher, M.; Rzaigui, M. J. Solid State Chem. 1994, 108, 11.
Toumi, M.; Hlel, F.; Ben Chaabane, T.; Smiri-Dogguy, L.; Laligant, Y.; Le Bail, A. Eur. J. Solid State Inorg. Chem., 1999, in press.
Ben Chaabane, T.; Smiri-Dogguy, L.; Laligant, Y.; Le Bail, A. Eur. J. Solid State Inorg. Chem. 1998, 35, 255.
Durif, A. Crystal Chemistry of Condensed Phosphates; Plenum Press: New York, 1995; pp 125, 126.
Brese, N.E.; O'Keeffe, M. Acta. Crystallogr. 1991, B47, 192.
Sheldrick G.M. SHELXS-86, In Crystallographic Computing 3; Sheldrick, G. M; Krûger, C; Goddard, R, Eds.; Oxford University Press: London, UK, 1985.
Sheldrick G.M. SHELXL-97, Crystal Structure Refinement; University of Gottingen: Gottingen; Germany, 1997.
Hlel, F.; Smiri-Dogguy, L.; Laligant, Y. (to be published).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chaabane, T.B., Smiri-Dogguy, L. Synthesis and crystal structure of a new lithium cyclohexaphosphate hydrate: Li6P6O18·10H2O. Journal of Chemical Crystallography 29, 323–327 (1999). https://doi.org/10.1023/A:1009577902852
Issue Date:
DOI: https://doi.org/10.1023/A:1009577902852