Electronic structure of adenine and thymine base pairs studied by femtosecond electron-ion coincidence spectroscopy
Cited 17 times inCited 17 times in
- Electronic structure of adenine and thymine base pairs studied by femtosecond electron-ion coincidence spectroscopy
- Gador, Niklas; Samoylova, Elena; Smith, Valoris Reid; Stolow, Albert; Rayner, David M.; Radloff, Wolfgang; Hertel, Ingolf Volker; Schultz, Thomas
- Issue Date
- AMER CHEMICAL SOC
- JOURNAL OF PHYSICAL CHEMISTRY A, v.111, no.46, pp.11743 - 11749
- Femtosecond pump - probe spectroscopy was combined with photoelectron - photoion coincidence detection to investigate the electronic structure and dynamics of isolated adenine (A) and thymine (T) dimers and the adenine-thymine (AT) base pair. The photoelectron spectra show that ππ* and ππ* states are only weakly perturbed in the hydrogen-bound dimers as compared to the monomers. For cationic base pairs with internal energies greater than 1 eV, we observed considerable cluster fragmentation into protonated monomers. This process selectively removed signals from the ππ* → n-1 ionization channel in all dimers. The photoelectron spectra are compared to time-resolved mass spectra and confirm the assignment of short-lived ππ* and nπ* populations in the adenine, thymine, and mixed AT dimers.
- Appears in Collections:
- CHM_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.