Metal – organic coordination compounds dichloridobis(1-ethyl-2, 6-dimethylpyridinium-4-olate-κO) zinc (II) (EDMPZC) and dibromidobis(1-ethyl-2, 6-dimethylpyridinium-4-olate-κO) zinc (II) (EDMPZB) was designed and synthesized and single crystals was grown by solvent evaporation technique. Both the complexes were characterized by single crystal X-ray diffractometry, FTIR, FT NMR and elemental analyses. Optical transmittance window and the lower cutoff wavelength (262 nm for EDMPZC and 263 nm for EDMPZB) were identified from the linear optical studies. Laser induced surface damage threshold of EDMPZC and EDMPZB are 29.25 GW/cm2 and 71.16 GW/cm2 respectively. Thermal stability of the complexes was performed by Thermogravimetric / Differential Thermal Analysis (TG/DTA), and Differential Scanning Calorimetry (DSC) techniques.
