Abstract
A new semi-organic hydrogen bonding complex salt of 2-ammonium phenylarsonic acid and nitric acid has been synthesized, thus successfully growing good quality single crystals by means of slow solvent evaporation technique at ambient temperature. The 1H and 13C NMR spectra were recorded to establish the molecular structure. The conducted single crystal XRD analysis has shown that the title salt is crystalized in orthorhombic crystal system with centrosymmetric Pbcm space group. The structure consists of infinite parallel two-dimensional planes built of (C6H6NH3AsO3)+ organic cation and NO3- inorganic anions connected by hydrogen bonds and π-π interactions giving birth a three-dimensional network. The performed TG/DSC thermal analysis has established the thermal stability of the crystal. The optimized structural parameters and vibrational frequencies (the experimental and theoretical vibrational frequencies) were assigned and compared by the Density Functional Theory (DFT) using the Gaussian method (DFT/B3LYP). Good consistency results were found between the calculated and the experimental crystal structure and FT-IR spectra.
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