On-demand Triplet-sensitized Photoswitching of Arylazopyrazoles

On-demand Triplet-sensitized Photoswitching of Arylazopyrazoles

Triplet-sensitized Z-to-E photoisomerization of arylazopyrazole derivatives was achieved with red-light excitation of Pd(II) meso-tetraphenyltetrabenzoporphyrin (PdTPTBP) in deaerated DMSO solution. The triplet energy gap between the sensitizer and the arylazopyrazoles affects the apparent rate of Z...

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Veröffentlicht in:Chemistry letters 2023-09, Vol.52 (9), p.727-731
Hauptverfasser: Morikawa, Masa-aki, Mizuno, Miko, Harada, Naoyuki, Kimizuka, Nobuo
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Sprache:eng ; jpn
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Endothermic reactions
Energy gap
Energy transfer
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container_issue 9
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container_title Chemistry letters
container_volume 52
creator Morikawa, Masa-aki
Mizuno, Miko
Harada, Naoyuki
Kimizuka, Nobuo
description Triplet-sensitized Z-to-E photoisomerization of arylazopyrazole derivatives was achieved with red-light excitation of Pd(II) meso-tetraphenyltetrabenzoporphyrin (PdTPTBP) in deaerated DMSO solution. The triplet energy gap between the sensitizer and the arylazopyrazoles affects the apparent rate of Z-to-E photoisomerization. On-demand photoswitching of arylazopyrazoles proceeds facilely and reversibly with almost 100% efficiency despite the endothermic triplet energy transfer processes.
doi_str_mv 10.1246/cl.230281
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source Oxford University Press Journals All Titles (1996-Current)
subjects Endothermic reactions
Energy gap
Energy transfer
title On-demand Triplet-sensitized Photoswitching of Arylazopyrazoles
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