Ultrafast Bidirectional Photoswitching of a Spiropyran

Autor:	Patrick Nuernberger, Florian Langhojer, Ralf Schmidt, Tobias Brixner, Frank Würthner, Martin Kullmann, Johannes Buback
Rok vydání:	2010
Předmět:	Molecular switch Spiropyran General Chemistry Ring (chemistry) Photochemistry Biochemistry Catalysis chemistry.chemical_compound Colloid and Surface Chemistry chemistry Femtosecond Indoline Merocyanine Quantum efficiency Ultrashort pulse
Zdroj:	Journal of the American Chemical Society. 132:16510-16519
ISSN:	1520-5126 0002-7863
DOI:	10.1021/ja1062746
Popis:	We report on bidirectional photochemical switching of 6,8-dinitro-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline] (6,8-dinitro-BIPS) between the ring-closed spiropyran and the ring-open merocyanine form. This is studied by femtosecond three-color pump-repump-probe experiments. Both ring opening and ring closure are photoinduced. Completion of an entire cycle, consisting of opening and subsequent closure, can be achieved within 40 ps. A much shorter time (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6abdbd91c609a7550ea3dd755aa0254 https://doi.org/10.1021/ja1062746 Zobrazit plný text záznamu