Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 34, Pages 13276-13279Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja2050343
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Funding
- JSPS [23350022, 22350066]
- Grants-in-Aid for Scientific Research [22750043, 22350066, 23350022] Funding Source: KAKEN
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A light-harvesting antenna 1 comprising three varieties of porphyrins, each having a different number of ethynyl groups at its meso positions, was designed and synthesized. Antenna 1 exhibits intense absorption throughout the visible region up to 700 nm. Steady-state and time-resolved fluorescence studies showed that singlet-excited-state energy transfer occurs from the peripheral porphyrins to the central porphyrin with >90% efficiency and rate constants on the order of 10(10) s(-1).
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