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Density functional theory study of vibrational spectra, and assignment of fundamental modes of dacarbazine

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Abstract

The FTIR and FT Raman spectra of dacarbazine were recorded in the regions 4000–400 and 3500–100 cm−1, respectively. The optimized geometry, wavenumber, polarizability and several thermodynamic properties of dacarbazine were studied using ab initio Hartree-Fock, MP2 and DFT methods. A complete vibrational assignment aided by the theoretical harmonic wavenumber analysis was proposed. The calculated harmonic vibrational frequencies were compared with experimental FTIR and FT Raman spectra. Based on the comparison between calculated and experimental results and the comparison with related molecules, assignments of fundamental vibrational modes were made. The X-ray geometry and experimental frequencies were compared with the results of theoretical calculations.

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Gunasekaran, S., Kumaresan, S., Arunbalaji, R. et al. Density functional theory study of vibrational spectra, and assignment of fundamental modes of dacarbazine. J Chem Sci 120, 315–324 (2008). https://doi.org/10.1007/s12039-008-0054-8

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  • DOI: https://doi.org/10.1007/s12039-008-0054-8

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