Excited State Intramolecular Proton Transfer in O-Tosylaminobenzaldehyde View Full Text


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Article Info

DATE

2012-06-08

AUTHORS

Mikhail N. Khimich, Leonid D. Popov, Anatoly S. Burlov, Boris M. Uzhinov

ABSTRACT

Excited state intramolecular proton transfer (ESIPT) in o-tosylaminobenzaldehyde has been investigated. According to quantum-chemical calculations ESIPT in o-tosylaminobenzaldehyde is barrierless. Product of ESIPT undergoes efficient nonradiative deactivation caused by internal rotation of C(H)OH-group. The solvent orientational relaxation in anionic form of o-tosylaminobenzaldehyde was detected. The mechanism of anionic form fluorescence quenching at the addition of the base in a protic solvent is proposed. It consists in the intermolecular proton transfer from the protonated base to oxygen atom of aldehyde group followed by the internal rotation of C(H)OH-group. More... »

PAGES

1095-1100

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10895-012-1048-y

DOI

http://dx.doi.org/10.1007/s10895-012-1048-y

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1033463697

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/22678148


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