scholarly journals Growth and Characterization of Benzimidazolium Salicylate: NLO Property from a Centrosymmetric Crystal

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
M. Amudha ◽  
R. Rajkumar ◽  
V. Thayanithi ◽  
P. Praveen Kumar
Keyword(s):  
Grown Crystal ◽  
Wavelength Region ◽  
Complex Salt ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
Kdp Crystal ◽  
Growth Technique ◽  
X Ray ◽  
Nlo Property

A new organic charge transfer molecular complex salt of benzimidazolium salicylate (BSL) single crystals was grown by the slow evaporation solution growth technique using methanol as a solvent at room temperature. The grown crystals were characterised by single crystal X-ray diffraction (XRD) which confirms that the crystal belongs to monoclinic system with the centrosymmetric space group P21/c. The crystalline perfection of the grown crystal was analyzed by high resolution X-ray diffraction (HRXRD). The presence of various functional groups was identified by FTIR spectrum. UV-Vis spectral study reveals that the BSL crystal is optically transparent in the wavelength region 342 nm–1100 nm. Dielectric measurements of the crystal at various frequencies were also determined. The mechanical properties of the grown crystal were assessed using Vickers microhardness testing. Nonlinear optical property of the crystal was confirmed using Kurtz and Perry powder technique and the SHG efficiency of the BSL crystal is 0.7 times greater than that of the standard KDP crystal.

scholarly journals Growth and Spectral Characterization of L-Valine Zinc Acetate Single Crystal

2021 ◽  
Vol 9 (VI) ◽  
pp. 2691-2698
Author(s):  
A. Ruby
Keyword(s):  
Single Crystal ◽  
Zinc Acetate ◽  
Grown Crystal ◽  
Spectral Studies ◽  
X Ray Diffraction ◽  
Growth Technique ◽  
Cell Parameters ◽  
Hardness Values ◽  
Solution Growth Technique

L-Valine zinc acetate (LVZA) was synthesized and its solubility was estimated in the solvent of double distilled water. Single crystals of LVZA were grown by slow evaporation solution growth technique. The cell parameters were obtained by single crystal X-ray diffraction study. Functional groups of LVZA were identified by FTIR analysis. UV-vis-NIR spectral studies showed the optical nature of LVZA. Kurtz powder technique revealed the SHG efficiency of LVZA. Thermal properties of the grown LVZA crystal were studied from TGA/ DTA and DSC spectrum. Vickers’s mechanical hardness values were found for the grown crystal.

The Study and Characterization of a Novel Structure of 1,3,5-Benzenetricarboxylic Acid

2013 ◽  
Vol 830 ◽  
pp. 202-206
Author(s):  
Hai Yan Tan ◽  
Cheng Liu ◽  
Jin Ping Wu
Keyword(s):  
Relevant Information ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
X Ray ◽  
Novel Structure ◽  
Ft Ir ◽  
Benzenetricarboxylic Acid ◽  
The Stability ◽  
Lamella Structure

A novel ten-interpenetrating structure of 1,3,5-benzenetricarboxylic acid was grown under solvothemal condition after heated it 16 hours. It was characterized by FT-IR, HNMR, X-ray diffraction, HRTEM. HRTEM obtain the relevant information of structural morphologies. The result of HRTEM showsed this material owned special lamella structure. X-ray diffraction showed the crystal of the new structure is of monoclinic system, space groupP1 with a=26.5039(17), b=16.4121(17),c=26.550(2)Å,α=90.00, β=91.533(2), γ=90.00, V=11544.4(17)Å3, Z=8, Dc=1.451g/cm3,μ=0.126mm-1,F(000)=5184, R=0.0891 and w (R)=0.1819 for 11318 observed reflection with I>2(I),hydrogen bond contributed to the stability of the structure. The fluorescence spectra indicated that the title compound had two stronger emission peak at 346nm and 400nm. Keywords:1, 3, 5-benzenetricarboxylic acid; novel structure; ten-interpenetrating

scholarly journals Studies on the growth and characterization of L-cysteine hydrogen fluoride single crystal

2019 ◽  
Vol 37 (3) ◽  
pp. 304-309
Author(s):  
Azeezaa Varsha Mohammed ◽  
Suresh Sagadevan
Keyword(s):  
Single Crystal ◽  
Hydrogen Fluoride ◽  
Grown Crystal ◽  
Optical Band Gap ◽  
Second Harmonic ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Ft Ir

AbstractL-cysteine hydrogen fluoride (LCHF) single crystals were grown from aqueous solution. Single crystal X-ray diffraction, FT-IR, UV-Vis-NIR, and TG-DTA were used to test the grown crystals. The specimen dielectric and mechanical behaviors were also studied. Powder X-ray diffraction of the grown crystal was recorded and indexed. The optical properties of the LCHF crystal were determined using UV-Vis spectroscopy. It was found that the optical band gap of LCHF was 4.8 eV. The crystal functional groups were identified using FT-IR. Second harmonic generation (SHG) efficiency of the LCHF was three times higher than that of KDP. The dielectric constant, dielectric loss and AC conductivity were measured at different frequencies and temperatures.

Growth and Characterization of Pure and Thiourea Doped L-Alanine Single Crystals for Crystals for NLO Devices

2015 ◽  
Vol 1086 ◽  
pp. 79-84 ◽  
Author(s):  
P. Malliga ◽  
A. Joseph Arul Pragasam
Keyword(s):  
Single Crystals ◽  
Solution Method ◽  
Grown Crystal ◽  
Wavelength Region ◽  
Spectral Studies ◽  
X Ray Diffraction ◽  
Crystal Properties ◽  
Evaporation Technique ◽  
Surface Morphologies

Single crystals of pure and thiourea substituted L-alanine single crystals were grown successfully by the solution method with slow evaporation technique at room temperature. The effect of dopant on crystal properties has been studied. The solubility of the grown samples was found at various temperatures. Structural characterization of the grown crystals was determined by the single crystal X-ray diffraction (XRD). EDAX studies indicate the presence of thiourea in the doped L-alanine crystals. The functional groups were identified by FTIR spectroscopy. The UV-Vis- NIR spectral studies were carried out to analyze the optical absorption of the grown crystals and found that the absorption is very low in the wavelength region 232-1000nm for both the samples. SEM studies explain the surface morphologies of the grown crystals. Improvement in the SHG efficiency was studied by the Kurtz and Perry method. Thermal analysis has been carried on the grown crystal. Keywords: NLO, XRD, EDAX, UV-Vis-NIR, SEM

scholarly journals SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF THE 1:1 PROTON TRANSFER SALT OF MALONIC ACID WITH P-CHLOROANILINE

2017 ◽  
Vol 14 (28) ◽  
pp. 66-71
Author(s):  
Gerson E. DELGADO ◽  
Lusbely BELANDRIA ◽  
Asiloé J. MORA ◽  
Julia BRUNO-COLMENÁREZ ◽  
Gustavo MARROQUÍN
Keyword(s):  
Hydrogen Bonds ◽  
Malonic Acid ◽  
Crystal Packing ◽  
Chemical Properties ◽  
Supramolecular Assembly ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
X Ray ◽  
Cell Parameters

The design of multicomponent crystals offers a means to modify the physicochemical properties of crystals without altering the chemical properties of a particular molecule. In this study, a multicomponent crystal, the salt of malonic acid with p-chloroaniline, was synthetized and structurally characterized. The title compound wasprepared by grinding in an agate mortar, and its structure was studied by powder and single-crystal X-ray diffraction. This compound crystallize in the monoclinic system with space group P21/c, Z = 4, and unit cell parameters a = 12.9776(7)Å, b = 9.2308(5)Å, c = 8.5170(5)Å, β = 93.474(3)°. The multicomponent compound, p-chloroanilinium semi-malonate, can be described as an ionic ensemble assisted by hydrogen bonds established between p-chloroanilinium cations and semi-malonate anions. The molecular structure and crystal packing are stabilized mainly by intermolecular O-H•••O and N-H•••O hydrogen bonds interactions. The molecules construct a supramolecular assembly with a two-dimensional hydrogen bonded network along the ca plane.

scholarly journals Synthesis and structural characterization of Fe1-xMexBO3 (Me = Al, Sc) single crystals

2021 ◽  
Vol 2103 (1) ◽  
pp. 012069
Author(s):  
Yu Mogilenec ◽  
K Seleznyova ◽  
S Yagupov ◽  
K Seleznev ◽  
I Nauhatsky ◽  
...  
Keyword(s):  
Single Crystals ◽  
Fluorescence Analysis ◽  
Flux Growth ◽  
X Ray Diffraction ◽  
Growth Technique ◽  
X Ray ◽  
Synthesis Conditions ◽  
Initial Charge ◽  
Crystal Lattice Parameters

Abstract Fe1-xMexBO3 (Me = Al, Sc) single crystals have been synthesized by flux growth technique using B2O3-PbO-PbF2 solvent and approach of identical synthesis conditions. The contents of the diamagnetic ions Me in the initial charge of both compositions were equal, xcharge=0.05. The exact contents and crystal lattice parameters of the synthesized crystals were determined by X-ray fluorescence analysis and X-ray diffraction, respectively.

scholarly journals Growth and characterization of 4-(((4-aminophenyl)sulfonyl)oxy)-2,3-dihydroxy-4-oxobutanoic acid with Ce3+: for semiorganic nonlinear optical application

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
E. Vinoth ◽  
S. Vetrivel ◽  
S. Gopinath ◽  
R. Aruljothi ◽  
T. Suresh ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Nonlinear Optical ◽  
Grown Crystal ◽  
Laser Source ◽  
Cutoff Wavelength ◽  
X Ray Diffraction ◽  
X Ray ◽  
Oxobutanoic Acid ◽  
Crystalline System

Abstract This work aims at the growth and characterization of novel semi-organometallic nonlinear optical (NLO) crystal 4-(((4-aminophenyl) sulfonyl) oxy)-2,3-dihydroxy-4-oxobutanoic acid (ASODA) with ammonium ceric (II) sulfate dehydrate (ACS). The crystal 4-(((4-aminophenyl) sulfonyl) oxy)-2,3-dihydroxy-4-oxobutanoic acid with Ce3+ (STA) was grown by slow evaporation solution growth technique using deionized water as a solvent. Crystalline system of the grown STA crystal was identified by a single crystal X-ray diffraction study and confirmed as monoclinic crystalline system with non-centrosymmetric space group P21/C. The powder X-ray diffraction study confirmed the purity and crystallinity of the crystal. The presence of functional groups and hydrogen bonds (–O–H–O–) was confirmed by FT-IR spectroscopy. UV-Vis spectra showed that the grown crystal had a low cutoff wavelength at 219 nm. The position of protons and carbons were determined by structural studies based on NMR technique. The grown crystal was thermally stable up to 130 °C and its melting point was 163 °C. The SHG studies were performed by Quanta Ray Model laser source using Kurtz powder technique. The NLO efficiency of the STA crystal was 0.5 times greater than that of standard KDP. The dielectric constant and dielectric loss of the grown crystal were studied at different temperatures. The surface morphology and the particle size of the crystal were determined by FE-SEM technique. From the mechanical studies, it was found that the grown crystal is a soft material.

Synthesis and Structural Characterization of Zn(II) Coordination Polymer Material

2011 ◽  
Vol 282-283 ◽  
pp. 100-103 ◽  
Author(s):  
Li Hua Wang
Keyword(s):  
Hydrogen Bond ◽  
Coordination Polymer ◽  
Chain Structure ◽  
Title Complex ◽  
Dimensional Chain ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
One Dimensional ◽  
X Ray

In order to synthesize a new catalysis material, the title complex, [Zn(2,2’-bipyridine)(H2O)2(SO4)]n, was prepared and determined by X-ray diffraction. The results shows that the compound was crystallized in the monoclinic system, space groupC2/c, witha= 15.4304(14) Å,b= 12.7150(11) Å,c= 6.7068(5) Å,β= 102.103(10)º,V= 1286.61(19) Å3,Z= 4. The geometry of Zn(II) is a distortedcis-ZnN2O4octahedron. In the structure of the title complex, a one-dimensional chain structure is formed by hydrogen-bond.

scholarly journals Analysis of crystalline perfection of pure and Mo-doped KTP crystals on different growth planes by high-resolution X-ray diffraction

2014 ◽  
Vol 47 (3) ◽  
pp. 931-935 ◽  
Author(s):  
Jayavelu Rajeev Gandhi ◽  
Muthian Rathnakumari ◽  
Pandarinathan Muralimanohar ◽  
Palanivel Sureshkumar ◽  
Godavarthi Bhagavannarayana
Keyword(s):  
High Resolution ◽  
Grown Crystal ◽  
Thermal Fluctuations ◽  
Structural Defects ◽  
X Ray Diffraction ◽  
Crystalline Perfection ◽  
Growth Technique ◽  
X Ray ◽  
Temperature Solution ◽  
Solution Growth Technique

Single crystals of pure and molybdenum (Mo)-doped potassium titanyl phosphate (KTP) crystals were grown by the high-temperature solution growth technique. The presence of dopant ions in the grown crystal was confirmed by energy-dispersive X-ray analysis. Grown crystals, cut along various growth planes such as (100), (011) or (201), were analysed for crystalline perfection using high-resolution X-ray diffraction (HRXRD). Although the HRXRD study showed that the crystalline perfection of most of the crystals was quite good without any structural defects, structural grain boundaries were observed in some of the crystals chosen for study. The observed structural defects are probably due to mechanical or thermal fluctuations occurring during the growth process.

Structural, Optical and Laser Damage Threshold Studies of 1, 10 Phenanthraline Doped Potassium Penta Borate (KB5) Single Crystals

2012 ◽  
Vol 584 ◽  
pp. 29-32
Author(s):  
K. Prabha ◽  
M. Ramesh Babu ◽  
Pappu Sagayaraj
Keyword(s):  
Grown Crystal ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Solvent Evaporation Method ◽  
X Ray Diffraction ◽  
Unit Cell Parameters ◽  
X Ray ◽  
Cell Parameters

We concentrate on the low temperature slow solvent evaporation method and characterization of pure and 1, 10 phenanthraline doped KB5 and describe its potential as a non-linear optical material. The grown crystal has been subjected to single crystal X-ray diffraction analysis to identify the unit cell parameters and crystal system. The presence of carbon, hydrogen and oxygen content were confirmed by CHN analysis. The Kurtz’s-Perry powder SHG efficiency was determined for both pure and 1, 10 phenanthraline doped KB5 crystals as 1.6 and 2.2 times than that of pure KDP. Laser damage threshold studies of the pure and doped KB5 crystals have been found to be Q-Switched Nd-YAG laser.

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