Sharda J. Shitole
Z. B. Patil College, India

Crystals of lithium iodate were grown by simple evaporation method. Crystals having prism and prismatic pyramidal shapes were obtained. These crystals were characterized by XRD powder diffraction method. These crystals belong to hexagonal system with a = b ≠ c and α = 1200 , β = γ = 900. The calculated values of a, b, c are in good agreement with the reported ones. FT-IR analysis was carried out. The bands due to vibrations involving metal, iodine and oxygen atoms are found predominantly in the range 700 – 800 cm1 .These frequencies match very well with the reported values. Non-linear optical properties were studied using powder SHG measurements. Value of the nonlinear coefficient (d) of LiIO3 is higher than that of KDP, but still smaller than that of reported one.

Lithium iodate, XRD , FT-IR , Non-linear optical properties.