Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/50519| Type: | Artigo de Evento |
| Title: | Intersystem crossing in thiobases proceeds by a dark intermediate state |
| Authors: | Rocio Borrego Varillas Danielle Cristina Teles Ferreira Artur Nenov Irene Conti Lucia Ganzer Cristian Manzoni Ana Maria de Paula Marco Garavelli Giulio Cerullo |
| Abstract: | Thiobases are DNA or RNA nucleobases where an exocyclic carbonyl oxygen is replaced by a sulfur atom [1]. Thiation induces a red-shift in the absorption spectrum and causes also a dramatic change in the photophysics with respect to the canonical nucleobases: while in DNA/RNA monomers internal conversion from the photoexcited singlet 1 ππ* state to the ground state mediated by a conical intersection (CI) is the main deactivation channel, the major relaxation pathway in thiobases is via the population of triplet states through an ultrafast intersystem crossing (ISC). Thiobases have attracted much interest in recent years due to their photo-therapeutic applications. In spite of that, their ultrafast deactivation mechanisms are still debated. |
| Subject: | DNA Ácido ribonucleico Bioquímica |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | https://doi.org/10.1109/CLEOE-EQEC.2019.8872452 |
| URI: | http://hdl.handle.net/1843/50519 |
| Issue Date: | 2019 |
| metadata.dc.url.externa: | https://ieeexplore.ieee.org/document/8872452 |
| Appears in Collections: | Artigo de Evento |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.