Structural features of 7-methoxy-5-methy1-2-(pyridin-3-y1)-11,12-dihydro-5,11-methano[1,2,4]triazolo[1,5-c][1,3,5]benzoxadiazocine: Experimental and theoretical (HF and DFT) studies, surface properties (MEP, Hirshfeld)

GÜMÜŞ M. K., Kansiz S., Aydemir E., Gorobets N. Y., DEGE N.

JOURNAL OF MOLECULAR STRUCTURE, cilt.1168, ss.280-290, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1168
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.molstruc.2018.05.032
  • Dergi Adı: JOURNAL OF MOLECULAR STRUCTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.280-290
  • Anahtar Kelimeler: Biginelli condensation, Benzoxadiazocine, Hartree-Fock (HF), Density functional theory (OFT), HOMO-LUMO, Hirshfeld surface, MODIFIED BIGINELLI REACTION, UV-VIS SPECTRA, CRYSTAL-STRUCTURE, X-RAY, FT-IR, 3-AMINO-1,2,4-TRIAZOLE, TETRAHYDROPYRIMIDINES
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The molecular structure of 7-methoxy-5-methyl-2-(pyridin-3-yl)-11,12-dihydro-5,11-methano[1,2,4]triazolo[1,5-c][1,3,5]benzoxadiazocine that formulated as (C18H17N5O2) was determined by single-crystal X- ray diffraction and FT-IR spectroscopy. The crystal structure is triclinic, space group P-1 with parameters a = 10.0175(7) angstrom, b = 9.9702(6) angstrom, c = 17.5941(10) angstrom, alpha = 96.546(5)degrees, beta = 106.069(5)degrees gamma=97.178(5)degrees, V = 1654.87(19) angstrom(3), Z = 4. Theoretical calculations have been carried out by using Hartree-Fock (HF) and Density Functional Theory (DFT) methods. The vibrational frequencies were calculated by using HF/6-31G(d,p) and DFT/B3LYP/6-31G(d,p) basis sets in ground state. The calculated structural parameters (bond lengths, bond angles, torsion angles) and vibrational assignments were compared with their experimental data. Molecular Electrostatic Potential (MEP) map of the compound was obtained by using the optimized structures. Furthermore, the frontier molecular orbitals have been created for the compound. Crystal Explorer program was used to determine remarkable interactions in the crystal. (C) 2018 Elsevier B.V. All rights reserved.