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e-Article

Inducing molecular reactions by selective vibrational excitation of a remote antenna with near-infrared light.
Document Type
Article
Source
Chemical Communications. 9/25/2021, Vol. 57 Issue 75, p9570-9573. 4p.
Subject
*ANTENNAS (Electronics)
*MOLECULAR structure
*MOIETIES (Chemistry)
Language
ISSN
1359-7345
Abstract
We demonstrate here that selective vibrational excitation of a moiety, remotely attached in relation to the molecular reaction site, might offer a generalized strategy for inducing bond-breaking/bond-forming reactions with exquisite precision. As a proof-of-principle, the electrocyclic ring-expansion of a benzazirine to a ketenimine was induced, in a cryogenic matrix, by near-IR light tuned at the overtone stretching frequency of its OH remote antenna. This accomplishment paves the way for harnessing IR vibrational excitation as a tool to guide a variety of molecular structure manipulations in an exceptional highly-selective manner. [ABSTRACT FROM AUTHOR]