Vibrational Spectroscopic [IR and Raman] Analysis and Computational Investigation [NMR, UV-Visible, MEP and Kubo gap] on L-Valinium Picrate

2014 ◽  
Vol 2 (1) ◽  
pp. 11-25 ◽  
Author(s):  
I. John David Ebenezar ◽  
S. Ramalingam ◽  
C. Ramachandra Raja ◽  
P. C. Jobe Prabakar
Keyword(s):  
Computational Investigation ◽  
Raman Analysis ◽  
Uv Visible ◽  
Ir And Raman

A computational investigation on the photo-isomerization of 2,4,6-octatriene and its UV–visible spectrum

2018 ◽  
Vol 509 ◽  
pp. 98-105 ◽  
Author(s):  
Anjan Chattopadhyay ◽  
Praveen Saini ◽  
Raymond Hakim ◽  
Adrian Komainda ◽  
Horst Köppel
Keyword(s):  
Visible Spectrum ◽  
Computational Investigation ◽  
Uv Visible

scholarly journals Electrochemical and Spectroscopic Studies of Nanocomposites Laden with BaTiO3-grafted-graphene Oxide

2018 ◽  
pp. 319-327
Author(s):  
S. Padmaja ◽  
R. Nimma Elizabeth
Keyword(s):  
Electrochemical Impedance ◽  
Coulombic Efficiency ◽  
Ion Pairs ◽  
Spectroscopic Studies ◽  
Solid Polymer ◽  
Raman Analysis ◽  
Raman Spectroscopic ◽  
Lithium Sulfur Batteries ◽  
Ft Ir ◽  
Ir And Raman

The electrochemical behavior of lithium-sulfur batteries was investigated by means of electrochemical impedance spectroscopy (EIS). Films of NCPEs (PEO+LiCF3SO3+BaTiO3-g-GO) were cast using a novel hot-press technique. The addition of filler in fractional amount to the solid polymer matrix at room temperature further enhances the ionic conductivity. The membranes were subjected to cycling, FT-IR and Raman spectroscopic analyses. The occurrence of ion-ion pairs interaction has been identified using FT-IR and Raman analysis. Cells with this electrolyte have a high coulombic efficiency of 98% and a high cycling stability.

scholarly journals Infrared, Mid infrared and UV-Visible spectra study Cobalt chloride CoCl2. 6H2O molecule

2017 ◽  
Vol 14 (3) ◽  
pp. 503-508
Author(s):  
Baghdad Science Journal
Keyword(s):  
Electronic Transition ◽  
Cobalt Chloride ◽  
Mid Infrared ◽  
Wide Range ◽  
Visible Spectra ◽  
Wave Numbers ◽  
Vibrational Bands ◽  
Uv Visible ◽  
Ir And Raman ◽  
Chloride Molecule

IR, MIR, UV – Visible spectra have been studied for Cobalt chloride molecule (CoCl2. 6H2O) compound, In wide range spectra (40000 – 410) cm-1 specially MIR range. Assignment were achieved for the fundamental vibrational bands of (CoCl2 . 6H2O ) to symmetry stretching ?1 (?^+) Anti – symmetry stretching ?3(?^+), these bands are non-degenerate , and the bending band is ?2(?) is doubly degenerate thought they have activity in IR and Raman , which explain the weakness in symmetry of this molecule, the fundamental bands for the molecule are centered at the following wave numbers (615, 685, 795, 1115, 1340, 1375, 1616.35, 2091, 2386, 2410, 3364) cm-1 which are corresponding to wave lengths (16260, 14598, 12578, 8968, 7462, 7272, 6186, 4782, 4191, 4149, 2972 ) nm The UV and visible spectra of the shows bands centered at (205.7) nm , (48614) cm-1 due to the electronic transition ( n ?^*) , other band centered at (512) nm, (19531) cm-1 due to (n ?^*) electronic transition .

scholarly journals Viscosity and structure evolution of the SiO2-MgO-FeO-CaO-Al2O3 slag in ferronickel smelting process from laterite

2017 ◽  
Vol 53 (2) ◽  
pp. 147-154 ◽  
Author(s):  
X.M. Lv ◽  
X.W. Lv ◽  
L.W. Wang ◽  
J. Qiu ◽  
M. Liu
Keyword(s):  
Smelting Process ◽  
Structure Evolution ◽  
Raman Analysis ◽  
Slag Volume ◽  
Slag Structure ◽  
Nickel Ores ◽  
Ft Ir ◽  
Ir And Raman ◽  
Liquid And Solid Phases ◽  
Furnace Volume

The SiO2 fractions in laterite-nickel ores are quite high, thus certain amount of lime should be used as fluxing material to achieve good fluidity and desulfurization capacity in industrial smelting process. However, this operation leads to an additional cost of lime. In addition, the increase of slag volume decreases the effective furnace volume. To avoid such problem, partial reduction of FeO has been suggested. Therefore, the high SiO2, low MgO and FeO and very little CaO slag is formed, which was less studied in the previous literature. Therefore, the viscosity and slag structure are investigated in the present study through FT-IR and Raman analysis methods. Experimental results show that the slag is a mixture of liquid and solid phases under the experimental temperature. The FT-IR and Raman spectra show that the fractions of the complex polymerization structure decrease significantly with the increase of FeO content and slag basicity, resulting in the decrease of apparent viscosity.

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