Synthesis, optical power limiting, and DFT calculations of triplet-triplet absorption of three novel Pt(II)-diacetylide chromophores

Three novel rod-like Pt(II)-diacetylides have been synthesized. When subjected to intense laser light, all three compounds showed strong optical power limiting at 532 and 600 nm. DFT calculated triplet-triplet electronic excitations were found to correlate with the nonlinear absorption.