Quantum chemical, spectroscopic and X-ray diffraction studies of 5-methoxy-2-({4-[3-methyl-3-mesityl-cyclobutyl]-thiazol-2-yl}-hydrazonomethyl)-phenol

Saraçoğlu H., ÇUKUROVALI A.

JOURNAL OF MOLECULAR STRUCTURE, cilt.1048, ss.382-391, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1048
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.molstruc.2013.06.009
  • Dergi Adı: JOURNAL OF MOLECULAR STRUCTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.382-391
  • Anahtar Kelimeler: Computational chemistry, X-ray structure determination, NMR spectroscopy, Frontier molecular orbitals, Molecular electrostatic potential, ELECTROSTATIC POTENTIALS, MOLECULAR-STRUCTURE, COMPLEXES, CRYSTAL, ACID, CYCLOBUTANE, DERIVATIVES, NICKEL(II), KINETICS
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The title molecule, 5-methoxy-2({4-[3-methyl-3-mesityl-cyclobutyl]-thiazol-2-yl)-hydrazonomethyl)-phenol (C-25 H-29 N-3 O-2 S), was prepared and characterized by elemental analysis, H-1 NMR, C-13 NMR, IR and X-ray single-crystal determination. The compound, crystallizes in the monoclinic space group P2(1)/c with a = 18.9647(4)angstrom, b = 11.0203(3) angstrom, c = 10.8562(2)angstrom and beta = 91.546(2)degrees. In addition to the molecular geometry from X-ray determination, vibrational frequencies and gauge, including atomic orbital (GIAO) H-1 and C-13 NMR chemical shift values of the title compound in the ground state, were calculated using the Hartree-Fock and density functional methods with the 6-31G(d, p) basis set. The calculated results show that the optimized geometries can well reproduce the crystal structure. Besides, the theoretical vibrational frequencies and chemical shift values show good agreement with experimental values. The calculated first hyperpolarizability of the title compound are greater than those of urea. DFT calculations of the molecular electrostatic potentials, frontier molecular orbitals and thermodynamic properties of the title compound were carried out at the B3LYP/6-31G(d, p) level of theory. (c) 2013 Published by Elsevier B.V.