Abstract :
A semiorganic crystal, dianilinium tetrachloroferrate (II) dihydrate was prepared and crystallised by slow evaporation
solution growth method at room temperature. The synthesized crystal was characterized through elemental analysis,
powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC),
Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) and non linear optical studies. The elemental
analysis and thermal studies confirm the stoichiometry of the crystal. The sharp and well defined Bragg peaks
observed in the powder XRD pattern confirm its crystallinity. The low temperature DSC of the crystal result indicates
that the there is no phase transitions in the cooling cycle. The FTIR spectrum of the crystal characterizes the various chemical bondings and water molecule in the crystal. The presence of aromatic protons in the crystal is confirmed by
NMR spectroscopy. The SHG efficiency of the crystal was confirmed by NLO study.
Keyword :
Crystal growth, Thermogravimetric analysis, Phase transitions, Phase transition, FTIR, SHG efficiency