title: NIR-laser-induced selective rotamerization of hydroxy conformers of cytosine.
abstract: The relative populations of two amino-hydroxy conformers of cytosine, differing in rotation of the OH group by approximately 180 degrees , 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.
authors.affiliation: Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland.
authors.forename: Leszek
authors.initials: L
authors.lastname: Lapinski
authors.forename: Maciej J
authors.initials: MJ
authors.lastname: Nowak
authors.forename: Igor
authors.initials: I
authors.lastname: Reva
authors.forename: Hanna
authors.initials: H
authors.lastname: Rostkowska
authors.forename: Rui
authors.initials: R
authors.lastname: Fausto