Erdogdu Y, Unsalan O, Sajan D, Gulluoglu MT. Structural conformations and vibrational spectral study of chloroflavone with density functional theoretical simulations.
SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010;
76:130-136. [PMID:
20363663 DOI:
10.1016/j.saa.2010.02.043]
[Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Revised: 02/22/2010] [Accepted: 02/26/2010] [Indexed: 05/29/2023]
Abstract
NIR-FT Raman and FT-IR spectra of 6-chloroflavone were recorded and analyzed. The vibrational wavenumber of the compound have been computed using B3LYP/6-31++G(d,p) level to derive the equilibrium geometry, conformational stability, molecular orbital energies and vibrational wavenumbers. The carbonyl stretching vibrations have been lowered due to conjugation and hydrogen bonding in the molecules. The assignment of fundamental vibrations agrees well with the calculated wavenumbers.
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