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Wavepacket Splitting and Two-Pathway Deactivation in the Photoexcited Visual Pigment Isorhodopsin

Wavepacket Splitting and Two-Pathway Deactivation in the Photoexcited Visual Pigment Isorhodopsin

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POLLI, Dario, Weingart OLIVER, Daniele BRIDA, Emiliano POLI, Margherita MAIURI, Katelyn M. SPILLANE, Andrea BOTTONI, Philipp KUKURA, Richard A. MATHIES, Giulio CERULLO, Marco GARAVELLI, 2014. Wavepacket Splitting and Two-Pathway Deactivation in the Photoexcited Visual Pigment Isorhodopsin. In: Angewandte Chemie International Edition. 53(9), pp. 2504-2507. ISSN 1433-7851. eISSN 1521-3773

@article{Polli2014Wavep-29495, title={Wavepacket Splitting and Two-Pathway Deactivation in the Photoexcited Visual Pigment Isorhodopsin}, year={2014}, doi={10.1002/anie.201309867}, number={9}, volume={53}, issn={1433-7851}, journal={Angewandte Chemie International Edition}, pages={2504--2507}, author={Polli, Dario and Oliver, Weingart and Brida, Daniele and Poli, Emiliano and Maiuri, Margherita and Spillane, Katelyn M. and Bottoni, Andrea and Kukura, Philipp and Mathies, Richard A. and Cerullo, Giulio and Garavelli, Marco} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/29495"> <dc:contributor>Cerullo, Giulio</dc:contributor> <dcterms:title>Wavepacket Splitting and Two-Pathway Deactivation in the Photoexcited Visual Pigment Isorhodopsin</dcterms:title> <dc:creator>Kukura, Philipp</dc:creator> <dc:creator>Bottoni, Andrea</dc:creator> <dc:contributor>Spillane, Katelyn M.</dc:contributor> <dc:creator>Poli, Emiliano</dc:creator> <dc:creator>Cerullo, Giulio</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-01-12T14:53:53Z</dc:date> <dc:creator>Maiuri, Margherita</dc:creator> <dc:creator>Brida, Daniele</dc:creator> <dcterms:issued>2014</dcterms:issued> <dc:creator>Oliver, Weingart</dc:creator> <dc:contributor>Brida, Daniele</dc:contributor> <dc:creator>Garavelli, Marco</dc:creator> <dcterms:abstract xml:lang="eng">Isorhodopsin is the visual pigment analogue of rhodopsin. It shares the same opsin environment but it embeds 9-cis retinal instead of 11-cis. Its photoisomerization is three times slower and less effective. The mechanistic rationale behind this observation is revealed by combining high-level quantum-mechanical/molecular-mechanical simulations with ultrafast optical spectroscopy with sub-20 fs time resolution and spectral coverage extended to the near-infrared. Whereas in rhodopsin the photoexcited wavepacket has ballistic motion through a single conical intersection seam region between the ground and excited states, in isorhodopsin it branches into two competitive deactivation pathways involving distinct conical intersection funnels. One is rapidly accessed but unreactive. The other is slower, as it features extended steric interactions with the environment, but it is productive as it follows forward bicycle pedal motion.</dcterms:abstract> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-01-12T14:53:53Z</dcterms:available> <dc:contributor>Poli, Emiliano</dc:contributor> <dc:creator>Mathies, Richard A.</dc:creator> <dc:contributor>Polli, Dario</dc:contributor> <dc:creator>Spillane, Katelyn M.</dc:creator> <dc:contributor>Maiuri, Margherita</dc:contributor> <dc:contributor>Kukura, Philipp</dc:contributor> <dc:contributor>Oliver, Weingart</dc:contributor> <dc:contributor>Mathies, Richard A.</dc:contributor> <dc:contributor>Bottoni, Andrea</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/29495"/> <dc:language>eng</dc:language> <dc:contributor>Garavelli, Marco</dc:contributor> <dc:creator>Polli, Dario</dc:creator> </rdf:Description> </rdf:RDF>

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