Ordering, Interaction, and Reactivity of the Low‐Lying nπ and ππ Excited Triplet States of Acetophenone Derivatives

Ordering, Interaction, and Reactivity of the Low‐Lying nπ and ππ Excited Triplet States of Acetophenone Derivatives

Lay low for a while: The low‐lying nπ* and ππ* triplet states of substituted acetophenones have been directly observed by time‐resolved near‐infrared spectroscopy. The apparent reactivities of the ππ* T1 states of acetophenones have been shown to arise from the thermal population of the higher nπ* T...

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Veröffentlicht in:Angewandte Chemie (International ed.) 2010-11, Vol.49 (48), p.9201-9205
Hauptverfasser: Yabumoto, Sohshi, Shigeto, Shinsuke, Lee, Yuan‐Pern, Hamaguchi, Hiro‐o
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Sprache:eng
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IR spectroscopy
ketones
photochemistry
time-resolved spectroscopy
triplet excited states
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container_end_page 9205
container_issue 48
container_start_page 9201
container_title Angewandte Chemie (International ed.)
container_volume 49
creator Yabumoto, Sohshi
Shigeto, Shinsuke
Lee, Yuan‐Pern
Hamaguchi, Hiro‐o
description Lay low for a while: The low‐lying nπ* and ππ* triplet states of substituted acetophenones have been directly observed by time‐resolved near‐infrared spectroscopy. The apparent reactivities of the ππ* T1 states of acetophenones have been shown to arise from the thermal population of the higher nπ* T2 states. Thermal equilibrium also occurs between the T1 and T2 states of the acetophenones.
doi_str_mv 10.1002/anie.201004571
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subjects IR spectroscopy
ketones
photochemistry
time-resolved spectroscopy
triplet excited states
title Ordering, Interaction, and Reactivity of the Low‐Lying nπ and ππ Excited Triplet States of Acetophenone Derivatives
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