Enhanced singlet oxygen generation of a soft salt through efficient energy transfer between two ionic metal complexes

Yun Ma, Shujun Zhang, Huanjie Wei, Yafang Dong, Liang Shen, Shujuan Liu, Qiang Zhao*, Li Liu, Wai Yeung WONG

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

In this study, a soft salt complex based photosensitizer has been developed for photodynamic therapy (PDT) of cancer cells. The iridium(iii) complex [Ir(L)(L′)]3+(PF6-)3 (C1) with L and L′ being terpyridine ligands (L = 4′-phenyl-2,2′:6′,2′′-terpyridine, L′ = 3-([2,2′:6′,2′′-terpyridin]-4′-yl)-9-hexyl-9H-carbazole) was chosen as the cationic component, and the iridium(iii) complex [Ir(dfppy)2CN2]-Bu4N+ (A1) was selected as the anionic component. Complexes C1 and A1 are directly connected through electrostatic interaction to form a soft salt based photosensitizer (S1), which exhibited an enhanced singlet oxygen generation rate because of efficient energy transfer between two ionic metal complexes. Furthermore, this novel photosensitizer was successfully applied in photodynamic therapy (PDT) of cancer cells for the first time.

Original languageEnglish
Pages (from-to)5582-5588
Number of pages7
JournalDalton Transactions
Volume47
Issue number16
DOIs
Publication statusPublished - 2018

Scopus Subject Areas

  • Inorganic Chemistry

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