Browsing by Subject "Density"
Now showing items 1-6 of 6
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5-Methylhydantoin: from isolated molecules in a low-temperature argon matrix to solid state polymorphs characterization
(Amer Chemical Soc, 1155 16th St, Nw, Washington, Dc 20036 USA, 2017-07-20)The molecular structure, vibrational spectra and photochemistry of 5-methylhydantoin (C4H6N2O2; 5-MH) were studied by matrix isolation infrared spectroscopy and theoretical calculations at the DFT(B3LYP)/6-311++G(d,p) ... -
A Vibrational Spectroscopy Study on Anserine and Its Aqueous Solutions
(Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford Ox5 1Gb, England, 2015-10-05)In this study based on vibrational spectroscopic measurements and Density Functional Theory (OFF), we aimed for a reliable interpretation of the IR and Raman spectra recorded for anserine in the solid phase and water (H2O) ... -
Matrix Isolation Infrared Spectra and Photochemistry of Hydantoin
(Amer Inst Physics, 2 Huntington Quadrangle, Ste 1No1, Melville, Ny 11747-4501 USA, 2013-01-31)Hydantoin (C3H4N2O2, 2,4-imidazolidinedione) was isolated in argon matrix at 10 K and its infrared spectrum and unimolecular photochemistry were investigated. The molecular structure of the compound was studied both at the ... -
Molecular Structure, Infrared Spectra, Photochemistry, and Thermal Properties of 1-Methylhydantoin
(Amer Chemical Soc, 1155 16Th St, Nw, Washington, Dc 20036 Usa, 2014-08-07)The structural, vibrational, and photochemical study of 1-methylhydantoin (1-MM, C4H6N2O2) was undertaken by matrix isolation infrared spectroscopy (in argon matrix; 10 K), complemented by quantum chemical calculations ... -
Structural transformations of 3-fluoro and 3-fluoro-4-methoxy benzaldehydes under cryogenic conditions: A computational and low temperature infrared spectroscopy investigation
(Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2018-05-31)Structural transformations of 3-fluorobenzaldehyde (C7H5FO, 3FBA) and 3-fluoro-4-methoxybenzaldehyde (C8H7FO2, 3F4MBA), taking place in different solid phase environments and at low temperature, were investigated by infrared ... -
The effects of conformation and zwitterionic tautomerism on the structural and vibrational spectral data of anserine
(Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2016-09)In this study, the stable conformers of neutral anserine were searched by molecular dynamics simulations and energy minimization calculations using the MM2 force field. Thermochemical calculations at B3LYP/6-31G(d) level ...
