NIR-laser-induced selective rotamerization of hydroxy conformers of cytosine

The relative populations of two amino-hydroxy conformers of cytosine, differing in rotation of the OH group by 180°, were selectively and repeatedly manipulated with narrowband, near-infrared laser light. For cytosine monomers isolated in a low-temperature Ar matrix, laser irradiations at 7013 cm−1...

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Bibliographic Details
Main Author: Lapinski, Leszek (author)
Other Authors: Nowak, Maciej J. (author), Reva, Igor (author), Rostkowska, Hanna (author), Fausto, Rui (author)
Format: article
Language:eng
Published: 2010
Online Access:http://hdl.handle.net/10316/18075
Country:Portugal
Oai:oai:estudogeral.sib.uc.pt:10316/18075
Description
Summary:The relative populations of two amino-hydroxy conformers of cytosine, differing in rotation of the OH group by 180°, were selectively and repeatedly manipulated with narrowband, near-infrared laser light. For cytosine monomers isolated in a low-temperature Ar matrix, laser irradiations at 7013 cm−1 and at 7034 cm−1 were found to induce effective transformations of the two conformers into each other.