Wrocław University of Science and Technology Faculty of Chemistry

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Quantum–classical simulations of rhodopsin reveal excited-state population splitting and its effects on quantum efficiency

The activation of rhodopsin, the light-sensitive G-protein-coupled receptor responsible for dim-light vision in vertebrates, is driven by an ultrafast excited-state double-bond isomerization with a quantum efficiency of almost 70%. The origin of…

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Circularly Polarized Luminescence from Atomically Precise Gold Nanoclusters Helically Assembled by Liquid-Crystal Template

Chiral plasmonic gold nanoparticles assemblies are known for their strong circular dichroism. However, little is known about the creation of helical assemblies from atomically precise nanoparticles like gold nanoclusters (AuNCs) and the…

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Transfer wodoru indukowany promieniowaniem UV w parach zasad DNA na powierzchni ciemnych stanów nπ*

Ciemne stany nπ* odgrywają znaczącą rolę w destrukcyjnej fotochemii pirymidynowych zasad kwasów nukleinowych. Na podstawie obliczeń kwantowo-chemicznych wykazujemy, że charakterystyczny schemat wiązania wodorowego pary zasad guanina-cytozyna może ułatwić tworzenie w stanie wzbudzonym…

Read article : Transfer wodoru indukowany promieniowaniem UV w parach zasad DNA na powierzchni ciemnych stanów nπ*

A prebiotically plausible synthesis of pyrimidine β-ribonucleosides involving photoanomerization

We describe a long-sought route through ribose aminooxazoline to the pyrimidine β-ribonucleosides and their phosphate derivatives that involves an extraordinarily efficient photoanomerization of α-2-thioribocytidine. In addition to the canonical nucleosides, our synthesis…

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Solvent effects on the photochemistry of 4-aminoimidazole-5-carbonitrile, a prebiotically plausible precursor of purines

Szabla, R.; Šponer, J. E.; Šponer, J.; Sobolewski, A. L.; Góra, R. W. Phys. Chem. Chem. Phys. 2014, 16 (33), 17617–17626 DOI: 10.1039/C4CP02074J Ab initio studies elucidate the molecular mechanisms underlying photostability…

Read article : Solvent effects on the photochemistry of 4-aminoimidazole-5-carbonitrile, a prebiotically plausible precursor of purines