Next Article in Journal
Previous Article in Journal
Crystals 2011, 1(1), 15-21; doi:10.3390/cryst1010015
Article

The First Lanthanide Telluride-Bromide: La3Te4Br, a Valence Compound

1
, 2
 and 1,*
Received: 21 February 2011; in revised form: 10 March 2011 / Accepted: 18 March 2011 / Published: 21 March 2011
View Full-Text   |   Download PDF [574 KB, updated 24 March 2011; original version uploaded 22 March 2011]   |   Browse Figures
Abstract: The first ternary lanthanide telluride-bromide La3Te4Br was obtained from a mixture of LaTe and LaBr3 (in the presence of iridium) in a sealed tantalum container at elevated temperatures. The crystal structure (orthorhombic, Pnma, a = 1634.3(2), b = 435.0(1), c = 1426.6(2) pm, Z = 4, R1 (I0 > 2s(I0)) = 0.0349) is built from dicapped trigonal prisms of tellurium and bromine atoms surrounding lanthanum in two different ways. The dicapped trigonal prisms are connected via common edges to a threedimensional structure, in the same fashion as is known for the binary U3Te5. La3Te4Br is a valence compound according to (La3+)3(Te2-)4(Br-) and one out of three lanthanide telluride-halides known to date.
Keywords: Lanthanum; Telluride-bromide; Synthesis; Crystal structure Lanthanum; Telluride-bromide; Synthesis; Crystal structure
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Larres, M.; Mudring, A.-V.; Meyer, G. The First Lanthanide Telluride-Bromide: La3Te4Br, a Valence Compound. Crystals 2011, 1, 15-21.

AMA Style

Larres M, Mudring A-V, Meyer G. The First Lanthanide Telluride-Bromide: La3Te4Br, a Valence Compound. Crystals. 2011; 1(1):15-21.

Chicago/Turabian Style

Larres, Markus; Mudring, Anja-Verena; Meyer, Gerd. 2011. "The First Lanthanide Telluride-Bromide: La3Te4Br, a Valence Compound." Crystals 1, no. 1: 15-21.

Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert