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- W1981738563 endingPage "231" @default.
- W1981738563 startingPage "220" @default.
- W1981738563 abstract "C^N*N cyclometalated platinum(II)L complexes with functionalized acetylide ligands were prepared (L = phenyl, pyrenyl or naphthalimide acetylides). The absorption of the pyrene and naphthalimide derived Pt(II) complexes in the visible region of the spectrum was enhanced relative to the phenylethenyl substituted model complex. Long-lived deep-red emissions were observed for the pyrene (83.7 μs) and naphthalimide (135.7 μs) derived Pt(II) complexes and compared to the phenylethenyl substituted model complex (9.2 μs). Room temperature and 77 K phosphorescence, time-resolved transient absorption and theoretical calculations indicated intraligand triplet excited states for the complexes. The photophysical properties of the complexes were fully rationalized by density functional theory calculations. The complexes were used as triplet photosensitizers for triplet–triplet annihilation based upconversion. Upconversion quantum yields up to 19.5% were observed. These results are useful for design of visible light-harvesting transition metal complexes that shows long-lived triplet excited states." @default.
- W1981738563 created "2016-06-24" @default.
- W1981738563 creator A5045624998 @default.
- W1981738563 creator A5066874352 @default.
- W1981738563 creator A5074928933 @default.
- W1981738563 creator A5080124839 @default.
- W1981738563 date "2013-01-01" @default.
- W1981738563 modified "2023-10-16" @default.
- W1981738563 title "Tridentate cyclometalated platinum(II) complexes with strong absorption of visible light and long-lived triplet excited states as photosensitizers for triplet–triplet annihilation upconversion" @default.
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