H
Hema Tresa Varghese
Researcher at Fatima Mata National College
Publications - 128
Citations - 2824
Hema Tresa Varghese is an academic researcher from Fatima Mata National College. The author has contributed to research in topics: Hyperpolarizability & Raman spectroscopy. The author has an hindex of 28, co-authored 128 publications receiving 2405 citations. Previous affiliations of Hema Tresa Varghese include Mar Ivanios College.
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FT-IR, FT-Raman and SERS spectra of Vitamin C
TL;DR: FT-IR and FT-Raman spectra of Vitamin c have been recorded and analysed and the molecule is thought to adsorb with the lactone ring in a tilted side on orientation with respect to the silver surface.
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FT-Raman, FT-IR and surface enhanced Raman scattering spectra of sodium salicylate.
TL;DR: Surface enhanced Raman scattering (SERS) spectrum was recorded is silver colloid because sodium salicylate is thought to adsorb in a somewhat 'tilted side on orientation' with respect to the silver surface.
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Vibrational spectroscopic (FT-IR, FT-Raman, ^{1}H NMR and UV) investigations and computational study of 5-nitro-2-(4-nitrobenzyl) benzoxazole
J.B. Bhagyasree,Hema Tresa Varghese,C. Yohannan Panicker,Jadu Samuel,Christian Van Alsenoy,Kayhan Bolelli,Ilkay Yildiz,Esin Aki +7 more
TL;DR: The optimized molecular structure, vibrational frequencies, corresponding vibrational assignments of 5-nitro-2-(4-Nitrobenzyl) benzoxazole have been investigated experimentally and theoretically using Gaussian09 software package and the calculated geometrical parameters are in agreement with that of similar derivatives.
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FT-IR, FT-Raman and DFT calculations of 4-chloro-2-(3,4-dichlorophenylcarbamoyl)phenyl acetate
TL;DR: FT-IR and FT-Raman spectra of 4-chloro-2-(3,4-dichlorophenylcarbamoyl)phenyl acetate were recorded and analyzed and the predicted infrared intensities and Raman activities are reported.
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FT-IR, FT-Raman and FT-SERS spectra of 4-aminosalicylic acid sodium salt dihydrate.
C. Yohannan Panicker,Hema Tresa Varghese,Annamma John,Daizy Philip,Krisztina István,Gábor Keresztury +5 more
TL;DR: The molecule (O, N donor ligand) is thought to adsorb through the carboxyl oxygen atom with the benzene ring in a 'perpendicular side on orientation' with respect to the silver surface.