[en] Several compounds of the (Na1-xLix)CdIn2(PO4)(3) solid solution were synthesized by a solid-state reaction in air, and pure alluaudite-like compounds were obtained for x = 0.00, 0.25, and 0.50. X-ray Rietveld refinements indicate the occurrence of Cd2+ in the M(1) site, and of In3+ in the M(2) site of the alluaudite structure. This non-disordered cationic distribution is confirmed by the sharpness of the infrared absorption bands. The distribution of Na+ and Li+ on the A(1) and A(2)' crystallographic sites cannot be accurately assessed by the Rietvled method, probably because the electronic densities involved in the Na+ --> Li+ substitution are very small. A comparison with the synthetic alluaudite-like compounds, (Na1-xLix)MnFe2(PO4)(3), indicates the influence of the cations occupying the M(1) and M(2) sites on the coordination polyhedra morphologies of the A(1) and A(2)' crystallographic sites. (C) 2002 Elsevier Science.
Disciplines :
Physics Chemistry
Author, co-author :
Hatert, Frédéric ; Université de Liège - ULiège > Département de géologie > Minéralogie et cristallochimie
Antenucci, Diano ; Université de Liège - ULiège > Minéralogie et cristallochimie
Fransolet, André-Mathieu ; Université de Liège - ULiège > Département de géologie > Minéralogie et cristallochimie
Liegeois-Duyckaerts, M.
Language :
English
Title :
The crystal chemistry of lithium in the alluaudite structure: A study of the (Na1-xLix)Cdln(2) (PO4)(3) the solid solution (x=0 to 1)
Publication date :
January 2002
Journal title :
Journal of Solid State Chemistry
ISSN :
0022-4596
eISSN :
1095-726X
Publisher :
Academic Press Inc Elsevier Science, San Diego, United States - California
Leroux F., Mar A., Payen C., Guyomard D., Verbaere A., Piffard Y. J. Solid State Chem. 1995, 115:240-246.
Leroux F., Mar A., Guyomard D., Piffard Y. J. Solid State Chem. 1995, 117:206-212.
Keller P., Riffel H., Zettler F., Hess H. Z. Anorg. Allg. Chem. 1981, 474:123-134.
Khorari S., Rulmont A., Tarte P. J. Solid State Chem. 1998, 137:112-118.
Burnham C.W. LCLSQ version 8.4, least-squares refinement of crystallographic lattice parameters, Dept. of Earth and Planetary Sciences, Harvard University; 1991.
Winand J.-M., Rulmont A., Tarte P. J. Solid State Chem. 1990, 87:83-94.
Antenucci D., Fransolet A.-M., Miehe G., Tarte P. Eur. J. Mineral. 1995, 7:175-181.
Shannon R.D. Acta Crystallogr. A 1976, 32:751-767.
Brown I.D., Altermatt D. Acta Crystallogr. B 1985, 41:244-247.
Hermann R.P., Hatert F., Fransolet A.-M., Long G.J., Grandjean F. J. Solid State Chem., submitted October; 2001.
Tarte P. Spectrochim. Acta 1964, 20:238-240.
Tarte P. Spectrochim. Acta 1965, 21:313-319.
Tarte P. Mém. Acad. Roy. Belgique, Cl. Sci., 8, 2è sér. , 4a, 4b; 1965, 35.
Wenger M., Armbruster T. Eur. J. Mineral. 1991, 3:387-399.
Young R.A., Larson A.C., Paiva-Santos C.O. User's guide to program DBWS-9807 for Rietveld analysis of X-ray and neutron powder diffraction patterns, School of Physics, Georgia Institute of Technology, Atlanta, GA; 1998.
