Novel Photoisomerization of N-(2-Nitrobenzylidene)-3-amino-5-methylpyrazole Triggered by Intramolecular Proton Transfer from Azomethine Group to Nitro Group in the Crystal State

Excited-state intramolecular proton transfer from the azomethine group to the nitro group of N-(2-nitrobenzylidene)-3-amino-5-methylpyrazole induced the formation of 2-nitrosobenzamide attended by vivid color change from yellow to reddish brown in the crystal state.

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Bibliographic Details
Published in:Chemistry letters 2009-01, Vol.38 (1), p.38-39
Main Authors: Amimoto, Kiichi, Kawato, Toshio
Format: Article
Language:English
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Summary:Excited-state intramolecular proton transfer from the azomethine group to the nitro group of N-(2-nitrobenzylidene)-3-amino-5-methylpyrazole induced the formation of 2-nitrosobenzamide attended by vivid color change from yellow to reddish brown in the crystal state.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2009.38