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V. Krishnakumar

Nehru Memorial College, Sullia

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Featured researches published by V. Krishnakumar.

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2004

FT Raman and FT–IR spectral studies of 3-mercapto-1,2,4-triazole

V. Krishnakumar; R. John Xavier

The FT-IR and FT Raman spectra of 3-mercapto-1,2,4-triazole have been recorded. The observed frequencies were assigned to various modes of vibrations on the basis of normal coordinate calculations, assuming Cs point group symmetry. The potential energy distribution associated with normal modes is also reported here. The assignment of fundamental vibrations agrees well with the calculated frequencies.

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

Density functional theory calculations and vibrational spectra of 3,5-dibromopyridine and 3,5-dichloro-2,4,6-trifluoropyridine

V. Krishnakumar; R. John Xavier

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

Crystal growth and vibrational spectroscopic studies of the semiorganic non-linear optical crystal—bisthiourea zinc chloride

V. Krishnakumar; R. Nagalakshmi

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

DFT studies and vibrational spectra of isoquinoline and 8-hydroxyquinoline.

V. Krishnakumar; R. Ramasamy

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

FTIR and FT-Raman spectra, vibrational assignments and density functional theory calculations of 2,6-dibromo-4-nitroaniline and 2-(methylthio)aniline

V. Krishnakumar; V. Balachandran

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

Growth and spectroscopic characterization of a new organic nonlinear optical crystal—8-hydroxyquinoline

V. Krishnakumar; R. Nagalakshmi; P. Janaki

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

Analysis of vibrational spectra of 5-fluoro, 5-chloro and 5-bromo-cytosines based on density functional theory calculations.

V. Krishnakumar; V. Balachandran

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2004

Polarised infrared and Raman studies of YCa4O(BO3)3 a non-linear optical single crystal

V. Krishnakumar; R. Nagalakshmi

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

Vibrational analysis of 1,4-diaminoanthraquinone and 1,5-dichloroanthraquinone. A joint FTIR, FT-Raman and scaled quantum mechanical study.

V. Krishnakumar; R. John Xavier

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005

DFT studies, vibrational spectra and conformational stability of 4-hydroxy-3-methylacetophenone and 4-hydroxy-3-methoxyacetophenone.

V. Krishnakumar; V. Balachandran

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R. John Xavier

J. J. College of Engineering and Technology

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S. Muthunatesan

Government College

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