Growth and characterisation of sodium thiourea nitrate for optical crystal

2015 ◽  
Vol 2 (2) ◽  
pp. 102-104
Author(s):  
Sakthi.P ◽  
Rajasekaran.R
Keyword(s):  
Crystal Structure ◽  
Room Temperature ◽  
Functional Group ◽  
Cell Parameter ◽  
Slow Evaporation ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Uv Visible ◽  
Optical Crystal ◽  
Vicker’S Microhardness

Sodium thiourea nitrate (STN) a semi organic optical crystal was grown by slow evaporation technique at room temperature. The cell parameter value and crystal structure was determined Single crystal Xray diffraction study. Presence functional group was identified FTIR study. The cut-off wavelength was determined UV-visible transmission spectrum study. The mechanical strength was analysis using Vicker’s microhardness test.

scholarly journals Growth, Optical and Microhardness Studies of 2-Aminothiazole- 3, 5-Dinitrobenzoic Acid Complex

2019 ◽  
Vol 1 (1) ◽  
pp. 42-45
Author(s):  
Tamiloli Devendhiran ◽  
Keerthika Kumarasamy ◽  
Mei–Ching Lin
Keyword(s):  
Room Temperature ◽  
Grown Crystal ◽  
Optical Transmittance ◽  
Dielectric Measurements ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
Acid Complex ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Evaporation Technique

Single crystals of 2-Aminothiazole 3,5-Dinitrobenzoic acid has been synthesized and good quality optical crystals were grown by slow evaporation technique at room temperature. The crystallinity nature of the grown crystal was confirmed from X-ray diffraction technique. An optical transmittance study was also carried out by UV – Vis spectra. FTIR spectra confirm the presence of functional groups in the grown crystal. The dielectric measurements were carried out in the range of 50Hz to 2MHz. The dielectric constant was seen to increase exponentially at lower frequencies. The microhardness studies were carried out using Vickers hardness indenter. Photoluminescence study shows that maximum emission occurs at 435nm.

Investigation on the growth, structural, HOMO–LUMO and optical studies of 1-ethyl-2-[2-(4-hydroxy-phenyl)-vinyl]-pyridinium iodide (HSPI) – a new stilbazolium derivative for third-order NLO applications

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35977-35990 ◽  
Author(s):  
K. Nivetha ◽  
S. Kalainathan ◽  
Manabu Yamada ◽  
Yoshihiko Kondo ◽  
Fumio Hamada
Keyword(s):  
Optical Quality ◽  
Slow Evaporation ◽  
Optical Studies ◽  
Third Order ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Optical Crystal ◽  
First Time ◽  
Homo Lumo ◽  
Phenyl Vinyl

The organic third-order non-linear optical crystal HSPI, a new derivative of the stilbazolium family, was successfully synthesized and the optical quality single crystal was grown by a slow evaporation technique for the first time.

scholarly journals Enhancement of yttrium ion on the properties of L-histidine nitrate single crystal for frequency conversion applications

2019 ◽  
Vol 37 (4) ◽  
pp. 615-621 ◽  
Author(s):  
S. Sathiyanathan ◽  
M. Selvapandiyan
Keyword(s):  
Room Temperature ◽  
Frequency Conversion ◽  
Cutoff Wavelength ◽  
Slow Evaporation ◽  
Edax Analysis ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Yttrium Ion ◽  
Lower Cutoff

AbstractNonlinear optical single crystals of L-histidine nitrate (LHN) as well as 0.05 mol % Y2+ doped LHN and 0.10 mol % Y2+ doped LHN were successfully grown by slow evaporation technique at room temperature. The lower cutoff wavelength and transmittance were 339 nm, 343 nm, 347 nm and 84 %, 86 % and 87 % for LHN, 0.05 mol % and 0.10 mol % yttrium doped LHN, respectively. Powder XRD studies revealed that the grown materials belong to an orthorhombic system with the space group P212121. FT-IR peak at 534 cm−1 due to yttrium coordinated with oxygen was observed. The EDAX analysis confirmed the presence of such elements as C, N, O and Y in the grown materials. High intensity PL emission peak was obtained at 420 nm.

Effect of trytophan as dopant on potassium acid phthalate single crystals

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Single Crystals ◽  
Room Temperature ◽  
Visible Region ◽  
X Ray Diffraction ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Absorption Studies ◽  
Evaporation Technique ◽  
Potassium Acid Phthalate ◽  
Acid Phthalate

Optically transparent single crystals of potassium acid phthalate (KAP, 0.5 g) 0.05 g and 0.1 g (1 and 2 mol %) trytophan were grown in aqueous solution by slow evaporation technique at room temperature. Single crystal X- ray diffraction analysis confirmed the changes in the lattice parameters of the doped crystals. The presence of functional groups in the crystal lattice has been determined qualitatively by FTIR analysis. Optical absorption studies revealed that the doped crystals possess very low absorption in the entire visible region. The dielectric constant has been studied as a function of frequency for the doped crystals. The thermal stability was evaluated by TG-DSC analysis.

scholarly journals Crystal structure of the new hybrid material bis(1,4-diazoniabicyclo[2.2.2]octane) di-μ-chlorido-bis[tetrachloridobismuthate(III)] dihydrate

2015 ◽  
Vol 71 (11) ◽  
pp. 1384-1387
Author(s):  
Marwen Chouri ◽  
Habib Boughzala
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Room Temperature ◽  
Molar Ratio ◽  
Water Molecules ◽  
Site Symmetry ◽  
Two Dimensional ◽  
Slow Evaporation ◽  
Solution Ph

The title compound bis(1,4-diazoniabicyclo[2.2.2]octane) di-μ-chlorido-bis[tetrachloridobismuthate(III)] dihydrate, (C6H14N2)2[Bi2Cl10]·2H2O, was obtained by slow evaporation at room temperature of a hydrochloric aqueous solution (pH = 1) containing bismuth(III) nitrate and 1,4-diazabicyclo[2.2.2]octane (DABCO) in a 1:2 molar ratio. The structure displays a two-dimensional arrangement parallel to (100) of isolated [Bi2Cl10]4−bioctahedra (site symmetry -1) separated by layers of organic 1,4-diazoniabicyclo[2.2.2]octane dications [(DABCOH2)2+] and water molecules. O—H...Cl, N—H...O and N—H...Cl hydrogen bonds lead to additional cohesion of the structure.

Growth and analysis of NSH and KMNSH crystals by slow evaporation technique

2014 ◽  
Vol 59 (7) ◽  
pp. 1114-1117 ◽  
Author(s):  
V. Masilamani ◽  
J. Shanthi ◽  
V. Sheelarani
Keyword(s):  
Slow Evaporation ◽  
Slow Evaporation Technique ◽  
Evaporation Technique
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