Ordering, interaction, and reactivity of the low-lying nπ* and ππ* excited triplet states of acetophenone derivatives

Sohshi Yabumoto; Shinsuke Shigeto; Yuan-Pern Lee; Hiro O. Hamaguchi

doi:10.1002/anie.201004571

Ordering, interaction, and reactivity of the low-lying nπ* and ππ* excited triplet states of acetophenone derivatives

Sohshi Yabumoto^*, Shinsuke Shigeto, Yuan-Pern Lee, Hiro O. Hamaguchi

^*Corresponding author for this work

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	9201-9205
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	49
Issue number	48
DOIs	https://doi.org/10.1002/anie.201004571
State	Published - 22 Nov 2010

Keywords

IR spectroscopy
ketones
photochemistry
time-resolved spectroscopy
triplet excited states

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10.1002/anie.201004571

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title = "Ordering, interaction, and reactivity of the low-lying nπ* and ππ* excited triplet states of acetophenone derivatives",

abstract = "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.",

keywords = "IR spectroscopy, ketones, photochemistry, time-resolved spectroscopy, triplet excited states",

author = "Sohshi Yabumoto and Shinsuke Shigeto and Yuan-Pern Lee and Hamaguchi, {Hiro O.}",

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T1 - Ordering, interaction, and reactivity of the low-lying nπ* and ππ* excited triplet states of acetophenone derivatives

AU - Yabumoto, Sohshi

AU - Shigeto, Shinsuke

AU - Lee, Yuan-Pern

AU - Hamaguchi, Hiro O.

PY - 2010/11/22

Y1 - 2010/11/22

N2 - 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.

AB - 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.

KW - IR spectroscopy

KW - ketones

KW - photochemistry

KW - time-resolved spectroscopy

KW - triplet excited states

UR - http://www.scopus.com/inward/record.url?scp=78649593526&partnerID=8YFLogxK

U2 - 10.1002/anie.201004571

DO - 10.1002/anie.201004571

M3 - Article

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SN - 1433-7851

VL - 49

SP - 9201

EP - 9205

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 48

ER -

Ordering, interaction, and reactivity of the low-lying nπ* and ππ* excited triplet states of acetophenone derivatives

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