Synthesis, Growth, Crystal Structure and Characterization of the o-Toluidinium Picrate

Kandasamy Mohana Priyadarshini, Angannan Chandramohan, Thangarak Uma Devi

Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore, India.
Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore, India;.
Department of Physics, Government Arts College for Women, Pudukottai, India..

DOI: 10.4236/jcpt.2013.34020                

Abstract

A new organic charge transfer molecular complex salt of o-toluidinium picrate (OTP) was synthesised and the single crystals were grown by the slow solvent evaporation solution growth technique using methanol as a solvent at room temperature. Formation of the new crystal has been confirmed by single crystal X-ray diffraction (XRD) and NMR spectroscopic techniques. The crystal structure determined by single crystal X-ray diffraction indicates that both the cation and the anion are interlinked to each other by three types of intermolecular hydrogen bonds, namely N(4)-H(4A)···O(7), N(4)-H(4B)···O(5) and N(4)-H(4C)···O(7). The title compound (OTP) crystallizes in monoclinic crystal system with the centrosymmetric space group P2₁/c. Fourier transform infrared (FT IR) spectral analysis was used to confirm the presence of various functional groups in the grown crystal. The optical properties were analyzed by the UV-Vis-NIR and fluorescence emission studies.

Keywords

Single Crystal; Organic Molecules; Solution Growth; X-Ray Diffraction; Characterization; Nonlinear Optical

Conflicts of Interest

The authors declare no conflicts of interest.

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