Journalartikel

Jahr der Veröffentlichung: 1996

Seiten: 81-86

Zeitschrift: Journal of Solid State Chemistry

Bandnummer: 122

Heftnummer: 1

ISSN: 0022-4596

DOI Link: https://doi.org/10.1006/jssc.1996.0085

Verlag: Elsevier

Abstract: 
The new compounds Ln(3)VO(4)Cl(6)(Ln = La, Ce, Pr, Nd) were prepared by heating a mixture of LnCl(3), LnOCl, and V2O5 (3:3:1) in evacuated, sealed silica ampoules (850 degrees C, 5 d). Single crystals of the lanthanum compound could be obtained by chemical vapor transport (900 --> 800 degrees C; 10 d; transport agent Cl-2, p{298 K} = 1 atm). The single-crystal study showed that La3VO4Cl6 crystallizes in the hexagonal space group P6(3)/m (No. 176), (Z = 2), with a = 12.5346(9) Angstrom and c = 4.1331(4) Angstrom (diffractometer data). Least-squares refinement based on 618 unique reflections led to a conventional R value of 1.49% for all data. Vanadium is tetrahedrally coordinated (d((V-0)) = 1.72-1.75 Angstrom). For lanthanum, a C.N. = 10 (3 x O {d((La-0)) = 2.44-2.98 Angstrom}, 7 X Cl {d((La-Cl)) = 2.95-3.12 Angstrom}) was found. Apart from the smaller coordination number of V5+ as compared to Nb5+, the structure is closely related to that of Pr3NbO4Cl6. (C) 1996 Academic Press, Inc.

Harvard-Zitierstil: Kammerer, H. and Gruehn, R. (1996) Preparation and crystal structure of Ln(3)VO(4)Cl(6) (Ln=La, Co, Pr, Nd), Journal of Solid State Chemistry, 122(1), pp. 81-86. https://doi.org/10.1006/jssc.1996.0085

APA-Zitierstil: Kammerer, H., & Gruehn, R. (1996). Preparation and crystal structure of Ln(3)VO(4)Cl(6) (Ln=La, Co, Pr, Nd). Journal of Solid State Chemistry. 122(1), 81-86. https://doi.org/10.1006/jssc.1996.0085