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Title Highly cooperative photoswitching in dihydropyrene dimers Author info Pauline Liesfeld, Yves Garmshausen ... [et al.] Author Liesfeld Pauline (16%)
Co-authors Garmshausen Yves (14%)
Budzák Šimon 1982- (14%) UMBFP08 - Katedra chémie
Becker Jonas (14%)
Dallmann André (14%)
Jacquemin Denis (14%)
Hecht Stefan (14%)
Source document Angewandte Chemie : international edition. Vol. 59, no. 43 (2020), pp. 19352-19358. - Weinheim : John Wiley & Sons, 2020 Keywords analytická chémia - analytical chemistry koordinačné zlúčeniny kooperatívne spôsobilosti fotochromizmus - photochromism spektroskopia - spectroscopy fotochémia - photochemistry Form. Descr. články - journal articles Language English Country Germany Annotation We present a strategy to achieve highly cooperative photoswitching, where the initial switching event greatly facilitates subsequent switching of the neighboring unit. By linking donor/acceptor substituted dihydropyrenes via suitable pi-conjugated bridges, the quantum yield of the second photochemical ring-opening process could be enhanced by more than two orders of magnitude as compared to the first ring-opening. As a result, the intermediate mixed switching state is not detected during photoisomerization although it is formed during the thermal back reaction. Comparing the switching behavior of various dimers, both experimentally and computationally, helped to unravel the crucial role of the bridging moiety connecting both photochromic units. The presented dihydropyrene dimer serves as model system for longer cooperative switching chains, which, in principle, should enable efficient and directional transfer of information along a molecularly defined path. Moreover, our concept allows URL Link na zdrojový dokument Link do databázy Scopus Public work category ADC No. of Archival Copy 49994 Repercussion category LE BRAS, Laura - LEMARCHAND, Claire - ALOISE, Stephane - ADAMO, Carlo - PINEAU, Nicolas - PERRIER, Aurelie. Modeling photonastic materials : a first computational study. In Journal of chemical theory and computation. ISSN 1549-9618, 2020, vol. 16, no. 11, pp. 7017-7032.
GHOSH, Sanjib - HOSSAIN, Munshi Sahid - CHATTERJEE, Sheelbhadra - RAHAMAN, Sk Atiur - BANDYOPADHYAY, Subhajit. Light-gated modulation of electronic mobility of a dihydropyrene-based photochromic coordination polymer. In ACS applied materials and interfaces. ISSN 1944-8244, 2020, vol. 12, no. 47, pp. 52983-52991.
LVOV, Andrey G. - BREDIHHIN, Aleksei. Azulene as an ingredient for visible-light- and stimuli-responsive photoswitches. In Organic and biomolecular chemistry. ISSN 1477-0520, 2021, vol. 19, no. 20, pp. 4460-4468.
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