Design, synthesis, luminescence and non-linear optical properties of 1,3,5-triethynylbenzene-based alkynylplatinum(II) terpyridine complexes

A series of 1,3,5-triethynylbenzene-based alkynylplatinum(II) terpyridine complexes has been designed and synthesized. The photophysical properties including UV-vis absorption and emission properties, as well as electrochemical properties of the complexes have been systematically evaluated. Interesting two-photon absorption and two-photon induced luminescence behaviors are also observed for these platinum(II) complexes.