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 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.
Lapinski
Leszek
L
Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland.
Nowak
Maciej J
MJ
Reva
Igor
I
Rostkowska
Hanna
H
Fausto
Rui
R