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Inorganic compound Li2Sn(IO3)6 as well as preparation method and use thereof

A technology of inorganic compounds and compounds, applied in iodine oxygen compounds, chemical instruments and methods, optics, etc., can solve problems that have not been reported in the literature

Active Publication Date: 2014-09-03
徐翔
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application further broadens the research of quaternary iodate, the first time Sn 4+ Ions were introduced into iodates, and a new type of quaternary iodate Li was discovered 2 Sn(IO 3 ) 6 , related work has not been reported in the literature so far

Method used

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  • Inorganic compound Li2Sn(IO3)6 as well as preparation method and use thereof
  • Inorganic compound Li2Sn(IO3)6 as well as preparation method and use thereof
  • Inorganic compound Li2Sn(IO3)6 as well as preparation method and use thereof

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1 adopts hydrothermal synthesis method to synthesize inorganic compound Li 2 Sn(IO 3 ) 6

[0033] Mix the lithium source, tin source, iodine source and water according to a certain ratio, seal it in a 25mL polytetrafluoroethylene-lined hydrothermal reaction kettle, put it in a box-type resistance furnace, and crystallize at the crystallization temperature for a period of time After filtering, washing and drying, the colorless needle-like inorganic compound Li 2 Sn(IO 3 ) 6 crystals. The relationship between the types of lithium source, tin source and iodine source, the ratio of each raw material, crystallization temperature, crystallization time and sample number is shown in Table 1.

[0034] Table 1Li 2 Sn(IO 3 ) 6 The relationship between synthesis conditions and sample numbers

[0035]

[0036]

[0037] a The number of moles of lithium source is calculated by the number of moles of lithium element contained therein; the number of moles of ...

Embodiment 2

[0038] Embodiment 2 inorganic compound Li 2 Sn(IO 3 ) 6 Analysis of the crystal structure of

[0039] The structures of samples 1# to 12# were analyzed by single crystal X-ray diffraction and powder X-ray diffraction.

[0040] The single crystal X-ray diffraction was carried out on a SuperNova CCD X-ray single crystal diffractometer of Agilent Company, USA. The crystal size is 0.25×0.03×0.03mm 3 ; The data collection temperature is 293K, and the diffraction light source is Mo-Kα ray monochromated by graphite The scanning method is ω-2θ; the data is processed by the Multi-Scan method for absorption correction. Structural analysis is completed with SHELXTL-97 program package; the position of heavy atoms is determined by direct method, and the coordinates of other atoms are obtained by difference Fourier synthesis method; the coordinates and anisotropic thermal parameters of all atoms are refined by F2-based full-matrix least squares method .

[0041] Powder X-ray diffrac...

Embodiment 3

[0049] Embodiment 3 frequency doubling test experiment and result

[0050] The frequency doubling test experiment of sample 1# is as follows: the laser with a wavelength of 1064nm generated by a Q-switched Nd:YAG solid-state laser is used as the fundamental frequency light, and the crystal powder to be tested is irradiated, and the secondary frequency of 532nm produced by photomultiplier tubes is detected. Harmonics, use an oscilloscope to display the strength of the harmonics. Grind the crystal sample to be tested and the standard sample KDP crystal, and use a standard sieve to screen crystals of different particle sizes, the particle sizes are 25-45μm, 45-53μm, 53-75μm, 75-105μm, 105-150μm, 150-210μm , 210-300μm. Observe the change trend of the multiplier signal with the particle size, and judge whether it can achieve phase matching. Under the same test conditions, compare the intensity of the second harmonic generated by the sample with the intensity of the second harmoni...

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Abstract

The invention relates to an inorganic compound Li2Sn(IO3)6 as well as a preparation method and use thereof. The chemical formula of the compound is Li2Sn(IO3)6; the compound belongs to a hexagonal crystal system, the space group is P6<3>, cell parameters are that a and b are equal to 9.4589(4) angstrom respectively, c is equal to 5.1707(4) angstrom, Alpha and Beta are equal to 90 degrees respectively, gamma is equal to 120 degrees, and Z is equal to 1; crystal cell volume V is equal to 400.65(4) cubic angstrom; colorless needlelike Li2Sn(IO3)6 crystal is prepared by using a hydrothermal method. The powder frequency-doubled effect of the Li2Sn(IO3)6 crystal is 15 times of that of KH2PO4, and ultraviolet stopping side is about 304 nanometers.

Description

technical field [0001] This application relates to a novel nonlinear optical crystal material. Background technique [0002] Nonlinear optical crystals are important optoelectronic functional materials. Crystal devices prepared based on their rich functions such as laser frequency conversion effect, linear electro-optic effect, optical rectification effect and photorefractive effect, such as frequency doubling devices, electro-optical switches, and high-speed photodetection devices And holographic storage elements, etc., are widely used in the field of optoelectronic technology. At present, among a large number of nonlinear optical crystals that have been reported, KH 2 PO 4 (referred to as KDP), KTiOPO 4 (KTP for short), β-BaB 2 o 4 (referred to as BBO), LiB 3 o 5 (referred to as LBO), LiNbO 3 (abbreviated as LN) and others have achieved industrial production, and play an important role in several military and civilian fields, such as laser weapons, nuclear fusion l...

Claims

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Application Information

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IPC IPC(8): C30B29/10C30B7/10G02F1/355G02F1/37C01B11/22
Inventor 徐翔毛江高
Owner 徐翔
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