Optical nonlinearities of tetracarbonyl-chromium triphenyl phosphine complex

Organometallic compounds have been attracted several research groups due to their large 3rd susceptibility. The results have encouraged the researchers to use the organometallic in opti - cal devices, such as human eyes and optical sensors protection from high power laser pulses. In organometallic compounds, the d electrons of the transition metal would interact with the organic ligand (π-electron). In such metal- ligand system, electrons are free to move and the nonlinear optical (NLO) phenomena come from the interaction between high intensity light and electrons within the molecular units, getting large nonlinear optical effects. The z-scan technique was employed to resolve the contribution of both refractive and absorptive parts of the nonlin - earity of different materials, such as: the chalcones, hydroxyquinolinium derivatives, fullerenes, carbon nanotubes, polyaniline, benzodifuran, alkynyl–ruthenium complexes, TiO 2 / polymorphs and TiO 2 / silica glass. The present paper reports on the synthesis, characterizations and 3rd nonlinear optical study of the tetra carbonyl chromium-triphenylphosphine [Cr(CO)4(PPh3)2] in dichloromethane. It should be mention that the Cr(CO)4(PPh3)2 has not been investigated before. (author).