Crystal and molecular structures, IR and Raman spectra, vibrational dynamics of aquo 7-methyl-1H-[1,2,3]triazolo[4,5-c]pyridinium nitrate – a new composite material

Lucyna Dymińska , Khalil Salem M. Sheweshen , Anna Gągor , Jadwiga Lorenc , Jerzy Hanuza

Abstract

The crystal and molecular structures of aquo 7-methyl-1H-[1,2,3]triazolo[4,5-c]pyridinium nitrate composite have been determined by X-ray diffraction and DFT quantum chemical calculations. The thermogravimetric and differential scanning calorimetric analyses were also performed. The compound crystallizes in a monoclinic structure, space group P21/n (No. 14) with Z = 4 and the unit cell parameters: a = 7.1392(3), b = 14.3163(5), c = 9.5900(4) and β = 107.330(4). The molecular structure and simulated vibrational spectra of the studied compound have been determined using B3LYP/6-311G(2d,2p) approach. The vibrational characteristics of the triazolo ring in the studied compound has been proposed. The role of the hydrogen bond in the formation of the salt composite has been discussed.