Structural, vibrational and hyperpolarizability calculation of (E)-2-(2-hydroxybenzylideneamino)-3-methylbutanoic acid

Subashchandrabose S., Saleem H., ERDOĞDU Y., Dereli O., Thanikachalam V., Jayabharathi J.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, cilt.86, ss.231-241, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 86
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.saa.2011.10.029
  • Dergi Adı: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.231-241
  • Anahtar Kelimeler: FT-Raman, FT-IR, TED, NBO, Leucine, DENSITY-FUNCTIONAL THEORY, AB-INITIO CALCULATIONS, SCHIFF-BASES, RAMAN-SPECTRA, COORDINATION POLYMER, SCALING FACTORS, FT-RAMAN, SALICYLALDEHYDE, COMPLEXES, DERIVATIVES
  • Gazi Üniversitesi Adresli: Hayır

Özet

The (E)-2-(2-hydroxybenzylideneamino)-3-methylbutanoic acid (E)-2HBAMBA was synthesized. The FT-IR, FT-Raman and UV-vis spectra have been recorded and characterized. Theoretical wavenumbers along with IR and Raman intensities were calculated using B3LYP/6-31G(d,p) level and total energy distribution (TED) of the various normal mode of vibrations were also studied. The conformational analysis was performed for a stable conformer by selecting the dihedral angles and the optimized bond parameters were calculated for the stable structure. Effect of intramolecular interactions is calculated by changing the orientation of hydroxyl hydrogen. To know the charge transfer while changing the hydroxyl group hydrogen orientation, the NBO analysis was performed. Using the same level of calculation, the electronic charge transfers were calculated and compared. (C) 2011 Elsevier B.V. All rights reserved.