Generation dependent singlet-singlet annihilation within multichromophoric dendrimers studied by polychromatic transient absorption

Autor:	Andreas Herrmann, Tanja Weil, Marc Lor, Klaus Müllen, Mark Van der Auweraer, Gerd Schweitzer, Frans C. De Schryver, S. Jordens, Gino De Belder, Uwe M. Wiesler
Přispěvatelé:	Zernike Institute for Advanced Materials, Polymer Chemistry and Bioengineering, Nanotechnology and Biophysics in Medicine (NANOBIOMED)
Rok vydání:	2003
Předmět:	Materials science Annihilation Intramolecular force Dendrimer Ultrafast laser spectroscopy Time constant Singlet state Physical and Theoretical Chemistry Chromophore Photochemistry Kinetic energy
Zdroj:	Photochemical & Photobiological Sciences, 2, 1118-1124. ROYAL SOC CHEMISTRY
ISSN:	1474-905X
Popis:	Intramolecular kinetic processes in a series of shape-persistent meta- and para-substituted polyphenylene dendrimers bearing different peryleneimide chromophores at the rim have been investigated using time-resolved polychromatic transient absorption measurements. The influence of the generation number and different substitution patterns upon these processes was revealed by comparing different compounds. In particular, in multichromophoric systems a singlet–singlet annihilation process was detected. The corresponding time constant was dependent on the generation number.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::394f11c644923c2ad6bff0d3ec276a9b https://pubmed.ncbi.nlm.nih.gov/14690223 Zobrazit plný text záznamu Full text from SpringerLink