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Synthesis, Characterization, and Crystal Structure Determination of a New Lithium Zinc Iodate Polymorph LiZn(IO3)3. CRYSTALS 2019. [DOI: 10.3390/cryst9090464] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Synthesis and characterization of anhydrous LiZn(IO3)3 powders prepared from an aqueous solution are reported. Morphological and compositional analyses were carried out by using scanning electron microscopy and energy-dispersive X-ray measurements. The synthesized powders exhibited a needle-like morphology after annealing at 400 °C. A crystal structure for the synthesized compound was proposed from powder X-ray diffraction and density-functional theory calculations. Rietveld refinements led to a monoclinic structure, which can be described with space group P21, number 4, and unit-cell parameters a = 21.874(9) Å, b = 5.171(2) Å, c = 5.433(2) Å, and = 120.93(4)°. Density-functional theory calculations supported the same crystal structure. Infrared spectra were also collected, and the vibrations associated with the different modes were discussed. The non-centrosymmetric space group determined for this new polymorph of LiZn(IO3)3, the characteristics of its infrared absorption spectrum, and the observed second-harmonic generation suggest it is a promising infrared non-linear optical material.
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Vallée F, Flytzanis C. Temporal and spatial evolution of picosecond phonon-polariton pulses in crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:13799-13812. [PMID: 10003441 DOI: 10.1103/physrevb.46.13799] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Crettez JM, Coquet E, Pannetier J, Bouillot J, Durand-Le Floch M. Neutron structure refinement of γ- and β-lithium lodate: Comparison between α, γ, and β phases. J SOLID STATE CHEM 1985. [DOI: 10.1016/0022-4596(85)90050-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Svensson C, Albertsson J, Liminga R, Kvick Å, Abrahams SC. Structural temperature dependence in α‐lithium iodate: Neutron and x‐ray study between 20 and 500 K. J Chem Phys 1983. [DOI: 10.1063/1.444725] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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