• D. Esther Nancy
• Dr. C. Krishnan
• Dr. S. Kalyanaraman

Using slow evaporation solution growth technique, single crystals of Nickel Histidinate were grown successfully. Structural and spectral analyses of as grown crystals were carried out by X-ray diffraction, Fourier Transform Infrared, UV-VIS-NIR and Nuclear Magnetic Resonance spectral methods. XRD analysis showed that the type of lattice is orthorhombic for nickel histidinate. From IR spectra most of the bond vibrations were found to be coupled vibrations and zwitter ion of the amino acid was also found in the crystals. Spectra observed in the UV-Visible region showed the characteristic absorbance of Histidine molecules and the transition metal ion Ni2+ in the grown crystal. NMR spectrum confirmed the coordination of Ni ion with the Histidine and also showed the presence of specific bonds in the grown crystal. These analyses will help to understand the structure of Nickel histidinate single crystal and its spectral behaviors.

Nickel Histidinate, Slow evaporation method, Zwitter ion, coupled vibrations,

"Growth, Structural and Spectral Characteristics of Single Crystal Nickel Histidinate", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.504-508, July-2018, Available :http://www.jetir.org/papers/JETIR1807079.pdf

"Growth, Structural and Spectral Characteristics of Single Crystal Nickel Histidinate", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp504-508, July-2018, Available at : http://www.jetir.org/papers/JETIR1807079.pdf