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Lucie echov Juraj Filo Martin Dra
ínský Chavdar Slavov Dazhong Sun Zlatko Janeba Tom Slanina Josef Wachtveitl Elika Prochzkov Marek Cig 《Angewandte Chemie (International ed. in English)》2020,59(36):15590-15594
Photochromic systems with an ultrahigh rate of thermal relaxation are highly desirable for the development of new efficient photochromic oscillators. Based on DFT calculations, we designed a series of 5‐phenylazopyrimidines with strong push–pull character in silico and observed very low energy barriers for the thermal (Z)‐to‐(E) isomerization. The structure of the (Z)‐isomer of the slowest isomerizing derivative in the series was confirmed by NMR analysis with in situ irradiation at low temperature. The substituents can tune the lifetime of thermal back isomerization from hundreds of microseconds to several nanoseconds (8 orders of magnitude). The photoswitching parameters were extracted from transient absorption techniques and a dominant rotation mechanism of the (Z)‐to‐(E) thermal fading was proposed based on DFT calculations. 相似文献
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Lucie Čechová Dr. Juraj Filo Dr. Martin Dračínský Dr. Chavdar Slavov Dazhong Sun Dr. Zlatko Janeba Dr. Tomáš Slanina Prof. Dr. Josef Wachtveitl Dr. Eliška Procházková Dr. Marek Cigáň 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(36):15720-15724
Photochromic systems with an ultrahigh rate of thermal relaxation are highly desirable for the development of new efficient photochromic oscillators. Based on DFT calculations, we designed a series of 5-phenylazopyrimidines with strong push–pull character in silico and observed very low energy barriers for the thermal (Z)-to-(E) isomerization. The structure of the (Z)-isomer of the slowest isomerizing derivative in the series was confirmed by NMR analysis with in situ irradiation at low temperature. The substituents can tune the lifetime of thermal back isomerization from hundreds of microseconds to several nanoseconds (8 orders of magnitude). The photoswitching parameters were extracted from transient absorption techniques and a dominant rotation mechanism of the (Z)-to-(E) thermal fading was proposed based on DFT calculations. 相似文献
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Back Cover: Carboxylated Photoswitchable Diarylethenes for Biolabeling and Super‐Resolution RESOLFT Microscopy (Angew. Chem. Int. Ed. 49/2016)
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Dr. Benoît Roubinet Dr. Mariano L. Bossi Dipl.‐Biophys. Philipp Alt Dr. Marcel Leutenegger Dr. Heydar Shojaei M. Sc. Sebastian Schnorrenberg Dr. Shamil Nizamov Prof. Dr. Masahiro Irie Dr. Vladimir N. Belov Prof. Dr. Stefan W. Hell 《Angewandte Chemie (International ed. in English)》2016,55(49):15444-15444
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Back Cover: Few‐Layer Antimonene by Liquid‐Phase Exfoliation (Angew. Chem. Int. Ed. 46/2016)
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Carlos Gibaja David Rodriguez‐San‐Miguel Pablo Ares Prof. Julio Gómez‐Herrero Dr. Maria Varela Dr. Roland Gillen Prof. Janina Maultzsch Dr. Frank Hauke Prof. Andreas Hirsch Dr. Gonzalo Abellán Dr. Félix Zamora 《Angewandte Chemie (International ed. in English)》2016,55(46):14470-14470