Crystal Research and Technology
Cryst. Res. Technol. 43, 173 (2008) - Abstract -

Synthesis, spectral, thermal and NLO properties of N,N-dimethyl anilinium picrate

A. Chandramohan, R. Bharathikannan*, M. A. Kandhaswamy, J. Chandrasekaran*, R. Renganathan**, and V. Kandavelu**

Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore – 641 020, Tamil Nadu, India
*Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore – 641 020, Tamil Nadu, India
**School of Chemistry, Bharathidasan University, Tiruchirappalli – 620 024, Tamil Nadu, India

Keywords charge transfer, solution growth, dimethyl anilinium picrate, nonlinear optical materials
PACS 34.70.+e, 42.70.Mp, 77.84.Jd, 81.10.Dn
DOI 10.1002/crat.200710940

The crystalline substance N,N-dimethyl anilinium picrate (DMAP) was synthesized and the single crystals of the title compound were grown by slow evaporation solution growth technique at room temperature. The crystalline nature of the material has been confirmed by powder X-ray diffraction method. The elemental analysis data confirm the stoichiometry and hence the molecular formula of the synthesized material. The formation of the charge-transfer complex has been confirmed by UV-visible spectral data. The infrared and 1H NMR spectroscopic data indicate a charge transfer activity associated with a proton transfer from the acceptor to the donor followed by intermolecular hydrogen bonding. Thermal behavior and stability of crystal were studied using thermo gravimetric (TG) and differential thermal analyses (DTA) techniques. The second harmonic generation (SHG) of the material was confirmed using Nd: YAG laser.




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