Synthesis, Growth, Spectral, Thermal and Mechanical Properties of Inorganic – Organic Hybrid NLO Crystal:

NH4[Cd(NCS)3] C12H24O6

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V. Ramesh, K. Rajarajan (2017). Synthesis, Growth, Spectral, Thermal and Mechanical Properties of Inorganic – Organic Hybrid NLO Crystal: NH4[Cd(NCS)3].C12H24O6Mechanics, Materials Science & Engineering, Vol 9. doi:10.2412/mmse.61.54.732

Authors: V. Ramesh, K. Rajarajan

ABSTRACT. Ammonium (18-crown-6-ether)cadmium (II) tri-thiocyanate [(NH4[Cd(NCS)3] C12H24O6] (ACCTC) is the potential inorgani-organic hybrid material, which has many applications in the field of laser displays and optical communications. The crystal growth of ACCTC has been carried out by slow evaporation solvent technique (SEST) at ambient temperature and its dimension was found to be 10×5×5 mm3. The single crystal X-ray diffraction analysis has confirmed the cell parameter of the grown crystal. The FT-IR spectrum is used to identify the functional groups present in ACCTC. The optical transmission is found by UV-Vis-NIR spectrometer. From the optical spectrum, good prominent optical transmission in the entire ultra violet to IR region has been well proved and hence it is an essential requirement for a non linear optical applications. Thermal analysis carried out on ACCTC revealed that it is thermally stable up to 237 °C which is far better than Li[Cd(NCS)3].C12H24O6 (CLTC); 170 ˚C, CdHg(SCN)4 (CMTC); 199 ˚C and Hg(N2H4CS)4Zn(SCN)4 (TMTZ); 185 ˚C. The Vicker’s hardness tester is used to estimate the mechanical hardness of the grown crystal and the results are reported.

Keywords: Solution Growth, Optical Transmission, SHG, Micro-hardness and TG-DSC.

DOI 10.2412/mmse.61.54.732

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