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Synthesis, characterization, and electronic structure of a new molybdenum bronze SnMo4O6

Title
Synthesis, characterization, and electronic structure of a new molybdenum bronze SnMo4O6
Authors
Jung D.Le B.-H.Kim S.-J.Kang W.
Ewha Authors
김성진강원
SCOPUS Author ID
김성진scopus; 강원scopus
Issue Date
2001
Journal Title
Chemistry of Materials
ISSN
0897-4756JCR Link
Citation
vol. 13, no. 5, pp. 1625 - 1629
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
SnMo4O6 was synthesized at low temperature from the mixture of MoO2 and Mo2O3 using Sn flux. The structure of this compound was determined by the single-crystal X-ray diffraction method. It crystallizes in the tetragonal space group P4/mbm with a = 9.580(4) and c = 2.843(6). The structure of SnMo4O6 is composed of edge-sharing Mo6O12 chains extending down the c axis, and four chains are connected to form channels filled with Sn cations. The resistivity measurement for SnMo4O6 along the chain direction shows that the compound is metallic down to 50 K, and it exhibits semiconducting behavior as the temperature lowers further. It was found from extended Huckel tight-binding band calculation that the compound is likely to be a quasi-one-dimensional metal. The metal-insulator transition in this compound is due to the Fermi surface nesting phenomenon, which originates in the one-dimensional characteristic.
DOI
10.1021/cm000646q
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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