Faculty/Unit/Organizational unit: Faculty of Chemistry/ Wroclaw University of Science and Technology

Szanowny Panie Marszałku, Szanowne Panie Posłanki, Szanowni Panowie Posłowie! Na podstawie art. 63 Konstytucji RP oraz art. 2 ustawy z dnia 11 lipca 2014 r. o petycjach (Dz. U. z 2018 r...

The global YouTube star and educator says “silence wasn’t a choice” for her when it came to speaking out against the killing and maiming of Palestinian children.

The uniform electron gas (UEG) is a cornerstone of density-functional theory (DFT) and the foundation of the local-density approximation (LDA), one of the most successful approximations in DFT. In thi...

This fellowship is for non-UK scientists who are at an early stage of their research career and wish to conduct research in the UK.

Photocycloreversion reactions of three diarylethene derivatives whose structures differ only in the placement of two sulfur atoms in the cyclopentene rings are investigated. Despite the minuscule differences between the molecules, both the yields and times of the photoreactions vary considerably. Using UV–vis and infrared femtosecond spectroscopy and quantum chemical dynamics simulations, we elucidate the relationships among the quantum yield, electronic and vibrational relaxation time, and structural properties of the dithienylethene photoswitches. We show that the local aromaticity of the molecule’s central ring could be one of the predictors of the quantum yield and the rate of cycloreversion. While from the perspective of electronic dynamics, the cycloreversion is completed within a few picoseconds at most, all three derivatives exhibit much longer (10–25 ps) nuclear rearrangement times that determine the actual times of stable photoproduct formation.

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