Single dibenzoterrylene molecules in an anthracene crystal: main insertion sites.
Chemphyschem
; 8(13): 1929-36, 2007 Sep 17.
Article
en En
| MEDLINE
| ID: mdl-17680586
ABSTRACT
We present a spectroscopic study of the properties of the two principal insertion sites (at 785.1 and 794.3 nm) of single dibenzoterrylene molecules in anthracene single crystals at cryogenic temperatures. We measured the temperature dependence of the line width, the orientation of the transition dipole moments, and the Stark effect. We performed molecular dynamics simulations, which show that one dibenzoterrylene molecule preferably replaces three anthracene molecules. From simulated annealing, we derive the molecular conformations in the most stable insertion sites and the orientations of the transition dipole moments. The good agreement between the spectroscopic results and the simulations allows us to propose unambiguous structures for the two principal spectroscopic sites.
Buscar en Google
Bases de datos:
MEDLINE
Idioma:
En
Revista:
Chemphyschem
Asunto de la revista:
BIOFISICA
/
QUIMICA
Año:
2007
Tipo del documento:
Article
País de afiliación:
Países Bajos