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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1007/s00214-020-2555-6
|2 doi
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|a pubmed25n1026.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Mai, Sebastian
|e verfasserin
|4 aut
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| 245 |
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|a Competing ultrafast photoinduced electron transfer and intersystem crossing of [Re(CO)
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 22.08.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © The Author(s) 2020.
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|a We present a computational study of sub-picosecond nonadiabatic dynamics in a rhenium complex coupled electronically to a tryptophan (Trp) side chain of Pseudomonas aeruginosa azurin, a prototypical protein used in the study of electron transfer in proteins. To gain a comprehensive understanding of the photoinduced processes in this system, we have carried out vertical excitation calculations at the TDDFT level of theory as well as nonadiabatic dynamics simulations using the surface hopping including arbitrary couplings (SHARC) method coupled to potential energy surfaces represented with a linear vibronic coupling model. The results show that the initial photoexcitation populates both singlet metal-to-ligand charge transfer (MLCT) and singlet charge-separated (CS) states, where in the latter an electron was transferred from the Trp amino acid to the complex. Subsequently, a complex mechanism of simultaneous intersystem crossing and electron transfer leads to the sub-picosecond population of triplet MLCT and triplet CS states. These results confirm the assignment of the sub-ps time constants of previous experimental studies and constitute the first computational evidence for the ultrafast formation of the charge-separated states in Re-sensitized azurin
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|a Journal Article
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|a Intersystem crossing
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4 |
|a Nonadiabatic dynamics
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|a Protein electron transfer
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| 650 |
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|a Quantum chemistry
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| 700 |
1 |
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|a Menger, Maximilian F S J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Marazzi, Marco
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Stolba, Dario L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Monari, Antonio
|e verfasserin
|4 aut
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| 700 |
1 |
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|a González, Leticia
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Theoretical chemistry accounts
|d 1998
|g 139(2020), 3 vom: 12., Seite 65
|w (DE-627)NLM098276018
|x 1432-881X
|7 nnas
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| 773 |
1 |
8 |
|g volume:139
|g year:2020
|g number:3
|g day:12
|g pages:65
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|u http://dx.doi.org/10.1007/s00214-020-2555-6
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