Study of 5-azidomethyl-8-hydroxyquinoline structure by X-ray diffraction and HF-DFT computational methods
Langue
en
Article de revue
Ce document a été publié dans
Russian Journal of Physical Chemistry A, Focus on Chemistry / Zhurnal fizicheskoi khimii. 2017, vol. 91, n° 2, p. 358-365
MAIK Nauka/Interperiodica
Résumé en anglais
5-Azidomethyl-8-hydroxyquinoline has been synthesized and characterized using IR, 1 H and 13 C NMR spectroscopic methods. Thermal analysis revealed no solid-solid phase transitions. The crystal structure of this compound ...Lire la suite >
5-Azidomethyl-8-hydroxyquinoline has been synthesized and characterized using IR, 1 H and 13 C NMR spectroscopic methods. Thermal analysis revealed no solid-solid phase transitions. The crystal structure of this compound was refined by Rietveld method from powder X-ray diffraction data at 295 K. The single crystal structure of the compound at 260 K was solved and refined using SHELX 97 program. According to the data obtained by both methods, the structure of the compound is monoclinic, space group P2 1 /c, with Z = 4 and Z ' = 1. For the single crystal at 260 K, a = 12.2879 (9) Å, b = 4.8782 (3) Å, c = 15.7423 (12) Å, β=100.807(14)°. Mechanisms of deformation resulting from intra-and intermolecular interactions, such as hydrogen bonding, induced slight torsions in the crystal structure. The optimized molecular geometry of 5-azidomethyl-8-hydroxyquinoline in the ground state is calculated using density functional theory (B3LYP) and Hartree-Fock (HF) methods with the 6-311G(d,p) basis set. The calculated results show good agreement with experimental values. Energy gap of the molecule was found using HOMO and LUMO calculation which reveals that charge transfer occurs within the molecule.< Réduire
Mots clés en anglais
5-azidomethyl-8-hydroxyquinoline
X-ray diffraction
single crystal structure
hydrogen bonding
HF‒DFT
HOMO‒LUMO
Origine
Importé de halUnités de recherche