Design, synthesis, characterization, luminescence and non-linear optical (NLO) properties of multinuclear platinum(ii) alkynyl complexes

Carmen Ka Man Chan, Chi Hang Tao, King Fai Li, Keith Man Chung Wong, Nianyong ZHU, Kok Wai CHEAH*, Vivian Wing Wah Yam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)10670-10685
Number of pages16
JournalDalton Transactions
Volume40
Issue number40
DOIs
Publication statusPublished - 28 Oct 2011

Scopus Subject Areas

  • Inorganic Chemistry

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