Department of Physics
Design, synthesis, characterization, luminescence and non-linear optical (NLO) properties of multinuclear platinum(II) alkynyl complexes
A series of luminescent multinuclear platinum(ii) alkynyl complexes containing triethynylbenzene or 1,4-bis(3,5-diethynylphenyl)buta-1,3-diyne as cores has been successfully synthesized and characterized. The electronic absorption, emission, nanosecond transient absorption and electrochemical properties of these complexes have been reported. These complexes show long-lived emissions in degassed benzene solution and in alcoholic glass at 77 K. Moreover, they are found to exhibit two-photon absorption (2PA) and two-photon induced luminescence (TPIL) properties, and their two-photon absorption cross-sections have been determined to be 6-191 GM upon excitation at 720 nm. Through a systematic comparison, it has been found that tetra- and hexanuclear platinum(ii) complexes show better 2PA and TPIL properties than their di- and trinuclear counterparts. © 2011 The Royal Society of Chemistry.
Source Publication Title
Royal Society of Chemistry
Chan, Carmen Ka Man, Chi-Hang Tao, King-Fai Li, Keith Man-Chung Wong, Nianyong Zhu, Kok-Wai Cheah, and Vivian Wing-Wah Yam. "Design, synthesis, characterization, luminescence and non-linear optical (NLO) properties of multinuclear platinum(II) alkynyl complexes." Dalton Transactions 40.40 (2011): 10670-10685.