Absorption of LiIO3 in the infrared for the ordinary direction of propagation

Cafferty, M.

doi:10.1016/1350-4495(94)90008-6

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…Because of the low symmetry of point group 2, a detailed assignment of each IR experimental frequency was not conducted, but FTIR measurements were found consistent with those of other iodate compounds. More importantly, because of its non-centrosymmetric polar crystal structure, as A better near-infrared transparency of LiZn(IO 3 ) 3 , as compared to α-LiIO 3 , could be noticed [53]. In addition, the spectral frequency range at 4000-3200 cm −1 is very useful to witness the presence of OH groups [54].…”

Section: Discussionmentioning

confidence: 99%

Synthesis, Characterization, and Crystal Structure Determination of a New Lithium Zinc Iodate Polymorph LiZn(IO3)3

et al. 2019

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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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Section: Discussionmentioning

confidence: 99%

Synthesis, Characterization, and Crystal Structure Determination of a New Lithium Zinc Iodate Polymorph LiZn(IO3)3

et al. 2019

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“…The better near-infrared transparency of LiZn(IO3)3 than that of α-LiIO3 can however be noticed [50]. In addition, the spectral frequency range at 4000 -3200 cm -1 is very useful to witness the presence of OH groups [51].…”

Section: Ftir Spectroscopymentioning

confidence: 99%

Synthesis, Characterization, and Crystal Structure Determination of a New Lithium Zinc Iodate Polymorph LiZn(IO<sub>3</sub>)<sub>3</sub>

Hebboul¹,

Galez²,

Benbertal³

et al. 2019

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Synthesis and characterization of anhydrous LiZn(IO3)3 powders prepared from an aqueous solution are reported. Morphological and compositional analyses were carried out by scanning electron microscopy and energy dispersive X-ray measurements. The synthesized powders exhibit a needle-like morphology after annealing at 400°C. A crystal structure for the synthesized compound has been 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 beta = 120.93(4)º. Density-functional theory calculations supported the same crystal structure. Infrared spectra were also collected and the vibrations associated to the different modes 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 a promising infrared non-linear optical material.

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