Conformational effects in excited-state intramolecular proton transfer in N-substituted 2-(2-aminophenyl)-4H-3,1-benzoxazin-4-ones View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2010-11-14

AUTHORS

M. N. Khimich, E. A. Birgen, B. M. Bolotin, B. V. Zhadanov, L. D. Uzhinova, A. S. Kuznetsov, B. M. Uzhinov

ABSTRACT

The conformational effects in the ground and excited states were studied for N-substituted 2-(2-aminophenyl)-4H-3,1-benzoxazin-4-ones. The structural relaxation of the excited ESIPT product was revealed, which results in the formation of a nonplanar conformer undergoing efficient nonradiative deactivation. The aggregation of fluorophore molecules was observed in saturated hydrocarbons at low temperatures for N-substituted 2-(2-aminophenyl)-4H-3,1-benzoxazin-4-ones with the amido carbonyl group. Excited-state intramolecular proton transfer was not observed in this associate, and the fluorophore molecules were shown to occur in the nonplanar conformation, in which there is no intramolecular hydrogen bonding. More... »

PAGES

492-497

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s0018143910060068

DOI

http://dx.doi.org/10.1134/s0018143910060068

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1044594555


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