Journal
SOLID STATE SCIENCES
Volume 48, Issue -, Pages 133-140Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2015.07.015
Keywords
Magnetic susceptibility; Crystal growth; In situ reduction; Metal reducing agents; Trigonal prism; Mo(V)
Funding
- National Science Foundation [DMR-1301757]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1301757] Funding Source: National Science Foundation
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The use of a KCl/CsCl alkali eutectic flux under reducing conditions facilitated the crystal growth of the mixed valent Mo(V)/Mo(VI) compound La20Mo12O63Cl4. La20Mo12O63Cl4 crystallizes in the noncentrosymmetric hexagonal space group P-62m with a = 10.2241(2) angstrom and c = 15.0768(4) angstrom, which represents a new structure type exhibiting a three-dimensional crystal structure containing three different molybdenum coordination environments, MoO5 square pyramids, MoO6 trigonal prisms, and MoO5 trigonal bipyramids. The temperature dependence of the magnetic susceptibility was measured and La20Mo12O63Cl4 was found to be paramagnetic across the entire 2-300 K temperature range measured. Although noncentrosymmetric, La20Mo12O63Cl4 was not found to be second harmonic generation active. La20Mo12O63Cl4 was further characterized by UV/Vis spectroscopy. (C) 2015 Elsevier Masson SAS. All rights reserved.
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