scholarly journals Investigations on Growth, Optical and Thermal Properties of Sulphamic Acid Single Crystals

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
D. Jaishree ◽  
G. Kanchana ◽  
R. Kesavasamy
Keyword(s):  
Single Crystals ◽  
Second Harmonic ◽  
Differential Scanning Calorimetric ◽  
X Ray Diffraction ◽  
Dsc Studies ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Sulphamic Acid ◽  
Ft Raman

Single crystals of sulphamic acid of 11 × 7 × 3 mm3dimension were successfully grown by slow evaporation technique. The crystal structure of grown crystals was confirmed by single crystal X-ray diffraction analysis. The presence of functional groups in the crystal lattice has been qualitatively determined by FT-IR and FT-Raman analyses. Theoretical group factor analysis predicts the possible modes of vibrations. The optical transmission spectroscopy (UV-Vis) clearly evidences the suitability of this material for optical application. The thermal behaviour of the crystal was studied by thermogravimetric (TG) and differential scanning calorimetric (DSC) studies. The nonlinear optical (NLO) characteristic of this material was explored by the second harmonic generation (SHG) conversion efficiency.

scholarly journals Effect of ZnSO4 and MnSO4 on the Growth of Sulphamic Acid Single Crystals

2018 ◽  
Vol 15 (2) ◽  
pp. 151-158 ◽  
Author(s):  
K.G. Anupriya ◽  
P. Hemalatha
Keyword(s):  
Thermogravimetric Analysis ◽  
Single Crystals ◽  
Second Harmonic ◽  
Spectral Studies ◽  
X Ray Diffraction ◽  
X Ray ◽  
Evaporation Technique ◽  
Differential Thermogravimetric Analysis ◽  
Sulphamic Acid ◽  
Vicker’S Microhardness

Single crystals of Sulphamic Acid doped with Zinc Sulphate and Manganese Sulphate were grown at room temperature using slow evaporation technique. Structural analysis of the grown crystals was done using single crystal X Ray Diffraction and powder X Ray Diffraction studies. Various functional groups seen in the grown crystals are determined using FTIR spectroscopic analysis. The cut-off wavelength of ZnSO4 and MnSO4 doped Sulphamic acid were evaluated by UV-Vis-NIR spectral studies. Thermal behaviour of the grown crystals was identified from Thermogravimetric Analysis (TGA) and Differential Thermogravimetric Analysis (DTA). The mechanical strength and Second harmonic generation of the grown crystals was identified by Vicker’s Microhardness Test and Kurtz powder technique respectively.

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.

Synthesis, Growth and Characterization of Organic Nonlinear Optical L-Asparagine L-Tartrate Single Crystals

2012 ◽  
Vol 584 ◽  
pp. 13-17 ◽  
Author(s):  
G. Peramaiyan ◽  
P. Pandi ◽  
B.M. Sornamurthy ◽  
R. Mohan Kumar
Keyword(s):  
Nonlinear Optical ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Bulk Single Crystal ◽  
X Ray Diffraction ◽  
Ftir Studies ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Generation Test

L-asparagine L-tartrate (LAT), an organic compound has been synthesized from aqueous solution and bulk single crystal has been grown by slow evaporation technique. Powder X-ray diffraction studies confirmed the monoclinic structure of the grown LAT crystal. The presence of functional groups of the grown crystal was identified by FTIR studies. Linear optical property of the grown crystal was studied by UV-Vis spectral analysis. Microhardness studies reveal that the crystal possesses relatively higher hardness compared to other organic nonlinear optical crystals. Dielectric response of the L-asparagine L-tartrate crystal was analyzed for different frequencies at various temperatures. Kurtz-Perry powder second harmonic generation test confirmed the nonlinear optical properties of the as-grown LAT crystal.

scholarly journals Growth, structural and optical properties of novel nonlinear optical potassium phthalate di lithium borate (KPDLiB) single crystals

2020 ◽  
Vol 38 (2) ◽  
pp. 214-218
Author(s):  
K. Mohanraj ◽  
D. Balasubramanian ◽  
N. Jhansi
Keyword(s):  
Single Crystals ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Visible Region ◽  
Fluorescence Emission ◽  
Lithium Borate ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
X Ray ◽  
Evaporation Technique

AbstractNovel nonlinear optical semi-organic, potassium phthalate di lithium borate (KPDLiB) single crystals were successfully grown by the slow solvent evaporation technique. Good crystalline nature and an orthorhombic structure were confirmed by powder X-ray diffraction and single crystal X-ray diffraction studies. The functional groups of KPDLiB were identified using FT-IR spectrum recorded in the range of 4000 cm−1 to 450 cm−1. UV-Vis spectrum showed transmitting ability of the crystals in the entire visible region. The photoluminescence spectrum exhibited good fluorescence emission in a visible region at 384 nm, 416 nm and 578 nm. The second harmonic generation efficiency of the grown crystal was evaluated from Kurtz powder technique.

Studies on the Growth Aspects of Thiourea Doped L-Alanine Hydrogenchloride: A Promising NLO Crystal

2012 ◽  
Vol 584 ◽  
pp. 70-73
Author(s):  
P. Malliga ◽  
R. Umamaheshwari ◽  
A. Joseph Arul Pragasam
Keyword(s):  
Second Harmonic ◽  
Optical Transmittance ◽  
Dielectric Measurement ◽  
Infrared Analysis ◽  
X Ray Diffraction ◽  
Second Harmonic Generation Efficiency ◽  
Cell Parameters ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Uv Visible

A single crystal of L-alanine hydrogenchloride doped with thiourea has been synthesized and grown successfully by slow evaporation technique at room temperature. The cell parameters were determined by the X-ray diffraction analysis. The UV - visible spectral analysis has been recorded to study the optical transmittance in the range from 200nm to1200nm.The Fourier transform infrared analysis identified various functional groups present in the material.The dielectric measurement was made as function of frequency.HR-SEM studies confirms the inclusion of the dopant thiourea. The second harmonic generation efficiency has been determined by Kurtz powder test.

scholarly journals Growth and Characterization of Anthranilic acid Crystals

2016 ◽  
Vol 12 (11) ◽  
pp. 4480-4487
Author(s):  
S. Dinagaran ◽  
P Srinivasan ◽  
P Srinivasan ◽  
S Vijayakumar ◽  
S Vijayakumar ◽  
...  
Keyword(s):  
Anthranilic Acid ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Hardness Test ◽  
Recrystallization Process ◽  
X Ray Diffraction ◽  
Physical Strength ◽  
Slow Evaporation Technique ◽  
Evaporation Technique

ABSTRACTSingle crystals of Anthranilic acid (AA) have been successfully grown and purity of materials has been increased by repeated recrystallization process. Single crystals have been grown by slow evaporation technique. The grown crystal was characterized by Single crystal X-Ray diffraction, Powder XRD, FTIR, UV-Vis, DTA/TGA, Dielectric studies and SHG respectively. The observed results from various characterization show the suitability of NLO application. The second harmonic generation of the grown crystal was checked using Kurtz and Perry technique. Thermal stability and melting point of the grown crystal were found by thermal analysis. The Physical strength of the grown AA crystal was measured from Vicker’s hardness test. 

CHARACTERIZATION OF KHCO3 SINGLE CRYSTALS

2004 ◽  
Vol 11 (01) ◽  
pp. 83-86 ◽  
Author(s):  
S. ABOUELHASSAN ◽  
F. SALMAN ◽  
M. ELMANSY ◽  
E. SHEHA
Keyword(s):  
Phase Transition ◽  
Activation Energy ◽  
Aqueous Solution ◽  
Single Crystals ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Evaporation Technique

Single crystals of KHCO 3 were grown by the slow evaporation technique of an aqueous solution. Characterization of the sample was done using different techniques such as X-ray diffraction, infrared spectra (IR) and the differential scanning calorimeter (DSC) technique. The analysis of the X-ray diffraction pattern indicated that the sample was a single crystal. The results obtained by IR and DSC indicated the presence of phase transition. From the analysis of DSC, the activation energy of transition was carried out by two methods (Kissinger and Ozawa).

scholarly journals Growth and Characterization of Organic Based Marine Dye NLO Material: 7-Bromo-6-chloro-3-[3-[(2R, 3S)-3-hydroxy-2-piperidyl]-2-oxopropyl]-4(3H)-quinazolinone

2011 ◽  
Vol 8 (3) ◽  
pp. 1062-1067 ◽  
Author(s):  
M. Jayandran ◽  
V. Balasubramanian
Keyword(s):  
Grown Crystal ◽  
Second Harmonic ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Ftir Studies ◽  
Visible Transmittance ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Uv Visible

An organic marine dye compound (7-bromo-6-chloro-3-[3-[(2R, 3S)-3-hydroxy-2-piperidyl]-2-oxopropyl]-4(3H)-quinazolinone) was synthesized. The characteristics of this dye is soluble in water. The organic compound was made into a crystal by slow evaporation technique. The grown crystals were characterized by single crystal x-ray diffraction (XRD) analysis, FTIR studies and UV-visible transmittance studies and the NLO activity of the grown crystal has been checked by second harmonic generation (SHG) test.

scholarly journals An Optical Overview of Poly[-L-alanine--nitrato-sodium(I)] Crystals

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
E. Gallegos-Loya ◽  
E. Orrantia-Borunda ◽  
A. Duarte-Moller
Keyword(s):  
Sodium Nitrate ◽  
Grown Crystal ◽  
Second Harmonic ◽  
Vibrational Modes ◽  
Slow Evaporation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Evaporation Technique ◽  
Xrd Studies

Single crystals of the semiorganic materials, L-alanine sodium nitrate (LASN) and D-alanine sodium nitrate (DASN), were grown from an aqueous solution by slow-evaporation technique. X-ray diffraction (XRD) studies were carried for the doped grown crystals. The absorption of these grown crystals was analyzed using UV-Vis-NIR studies, and it was found that these crystals possess minimum absorption from 200 to 1100 nm. An infrared (FTIR) spectrum of single crystal has been measured in the 4000–400 cm-1range. The assignment of the observed vibrational modes to corresponding symmetry type has been performed. A thermogravimetric study was carried out to determine the thermal properties of the grown crystal. The efficiency of second harmonic generation was obtained by a variant of the Kurtz-Perry method.

Optical and Dielectric Studies of Cadmium Chloride Doped Single Crystals of Lithium Sulphate

2012 ◽  
Vol 584 ◽  
pp. 65-69
Author(s):  
P.S. Latha Mageshwari ◽  
R. Priya ◽  
S. Krishnan ◽  
V. Joseph ◽  
S. Jerome Das
Keyword(s):  
Single Crystals ◽  
Cadmium Chloride ◽  
Visible Region ◽  
X Ray Diffraction ◽  
X Ray ◽  
Slow Evaporation Technique ◽  
Lithium Sulphate ◽  
Absorption Studies ◽  
Evaporation Technique ◽  
Spectroscopy Optical

Excellent and optically transparent good quality single crystals of cadmium chloride doped with lithium sulphate monohydrate (LS) 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 cadmium chloride lithium sulphate (CCLS). The functional groups present in the CCLS crystals were determined qualitatively by using Fourier transform infrared (FTIR) spectroscopy. Optical absorption studies revealed that doped crystals acquire very low absorption in the entire visible region. Dielectric measurements show that the dielectric constant and dielectric loss of doped crystals decreases with increase of frequency.

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