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Rodríguez-Cuenca E, Picón A, Oberli S, Kuleff AI, Vendrell O. Core-Hole Coherent Spectroscopy in Molecules. PHYSICAL REVIEW LETTERS 2024; 132:263202. [PMID: 38996324 DOI: 10.1103/physrevlett.132.263202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/08/2024] [Accepted: 05/20/2024] [Indexed: 07/14/2024]
Abstract
We study the ultrafast dynamics initiated by a coherent superposition of core-excited states of nitrous oxide molecule. Using high-level ab initio methods, we show that the decoherence caused by the electronic decay and the nuclear dynamics is substantially slower than the induced ultrafast quantum beatings, allowing the system to undergo several oscillations before it dephases. We propose a proof-of-concept experiment using the harmonic up-conversion scheme available at x-ray free-electron laser facilities to trace the evolution of the created core-excited-state coherence through a time-resolved x-ray photoelectron spectroscopy.
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Hwang J, Ihm Y, Nam D, Shin J, Park E, Lee SY, Lee H, Heo SP, Kim S, Ahn JY, Shim JH, Kim M, Eom I, Noh DY, Song C. Inverted nucleation for photoinduced nonequilibrium melting. SCIENCE ADVANCES 2024; 10:eadl6409. [PMID: 38701215 DOI: 10.1126/sciadv.adl6409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 04/01/2024] [Indexed: 05/05/2024]
Abstract
Ultrafast photoinduced melting provides an essential platform for studying nonequilibrium phase transitions by linking the kinetics of electron dynamics to ionic motions. Knowledge of dynamic balance in their energetics is essential to understanding how the ionic reaction is influenced by femtosecond photoexcited electrons with notable time lag depending on reaction mechanisms. Here, by directly imaging fluctuating density distributions and evaluating the ionic pressure and Gibbs free energy from two-temperature molecular dynamics that verified experimental results, we uncovered that transient ionic pressure, triggered by photoexcited electrons, controls the overall melting kinetics. In particular, ultrafast nonequilibrium melting can be described by the reverse nucleation process with voids as nucleation seeds. The strongly driven solid-to-liquid transition of metallic gold is successfully explained by void nucleation facilitated by photoexcited electron-initiated ionic pressure, establishing a solid knowledge base for understanding ultrafast nonequilibrium kinetics.
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Affiliation(s)
- Junha Hwang
- Department of Physics, POSTECH, Pohang 37673, Korea
- Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea
- Photon Science Center, POSTECH, Pohang 37673, Korea
| | - Yungok Ihm
- Photon Science Center, POSTECH, Pohang 37673, Korea
- Department of Chemistry, POSTECH, Pohang 37673, Korea
| | - Daewoong Nam
- Photon Science Center, POSTECH, Pohang 37673, Korea
- Pohang Accelerator Laboratory, Pohang 37673, Korea
| | - Jaeyong Shin
- Department of Physics, POSTECH, Pohang 37673, Korea
- Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea
- Photon Science Center, POSTECH, Pohang 37673, Korea
| | - Eunyoung Park
- Department of Physics, POSTECH, Pohang 37673, Korea
- Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea
- Photon Science Center, POSTECH, Pohang 37673, Korea
| | - Sung Yun Lee
- Department of Physics, POSTECH, Pohang 37673, Korea
- Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea
- Photon Science Center, POSTECH, Pohang 37673, Korea
| | - Heemin Lee
- Department of Physics, POSTECH, Pohang 37673, Korea
- Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea
- Photon Science Center, POSTECH, Pohang 37673, Korea
| | - Seung-Phil Heo
- Department of Physics, POSTECH, Pohang 37673, Korea
- Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea
- Photon Science Center, POSTECH, Pohang 37673, Korea
| | - Sangsoo Kim
- Pohang Accelerator Laboratory, Pohang 37673, Korea
| | - Je Young Ahn
- Department of Chemistry, POSTECH, Pohang 37673, Korea
| | - Ji Hoon Shim
- Photon Science Center, POSTECH, Pohang 37673, Korea
- Department of Chemistry, POSTECH, Pohang 37673, Korea
| | - Minseok Kim
- Pohang Accelerator Laboratory, Pohang 37673, Korea
| | - Intae Eom
- Photon Science Center, POSTECH, Pohang 37673, Korea
- Pohang Accelerator Laboratory, Pohang 37673, Korea
| | - Do Young Noh
- Department of Physics and Photon Science, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
- Institute for Basic Science, Daejeon 34126, Korea
| | - Changyong Song
- Department of Physics, POSTECH, Pohang 37673, Korea
- Center for Ultrafast Science on Quantum Matter, Max Planck POSTECH Korea Research Initiative, Pohang 37673, Korea
- Photon Science Center, POSTECH, Pohang 37673, Korea
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Liu J, Li Y, Hou Y, Wu J, Yuan J. Transient responses of double core-holes generation in all-attosecond pump-probe spectroscopy. Sci Rep 2024; 14:1950. [PMID: 38253674 PMCID: PMC11226462 DOI: 10.1038/s41598-024-52197-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
Double core-holes (DCHs) show remarkable and sensitive effects for understanding electron correlations and coherence. With advanced modulation of x-ray free-electron laser (XFEL) facility, we propose the forthcoming all-attosecond XFEL pump-probe spectroscopy can decipher the hidden photon-initiated dynamics of DCHs. The benchmark case of neon is investigated, and norm-nonconserving Monte-Carlo wavefunction method simulates non-Hermitian dynamics among vast states, which shows superiority in efficiency and reliability. In our scheme, population transfer to DCHs is sequentially irradiated by pump and probe laser. By varying time delay, Stark shifts and quantum path interference of resonant lines sensitively emerge at specific interval of two pulses. These ubiquitous multi-channel effects are also observed in phase-fluctuating pulses, derived from extra phases of impulsive Raman processes by pump laser. Non-perturbation absorption/emission verifies the uniquely interchangeable role of two pules in higher intensity. Our results reveal sensitive and robust responses on pulse parameters, which show potential capacity for XFEL attosecond pulse diagnosis and further attosecond-timescale chemical analysis.
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Affiliation(s)
- Jianpeng Liu
- College of Science, National University of Defense Technology, Changsha, 410073, China
- Hunan Key Laboratory of Extreme Matter and Applications, National University of Defense Technology, Changsha, 410073, China
| | - Yongqiang Li
- College of Science, National University of Defense Technology, Changsha, 410073, China
- Hunan Key Laboratory of Extreme Matter and Applications, National University of Defense Technology, Changsha, 410073, China
| | - Yong Hou
- College of Science, National University of Defense Technology, Changsha, 410073, China
- Hunan Key Laboratory of Extreme Matter and Applications, National University of Defense Technology, Changsha, 410073, China
| | - Jianhua Wu
- College of Science, National University of Defense Technology, Changsha, 410073, China.
- Hunan Key Laboratory of Extreme Matter and Applications, National University of Defense Technology, Changsha, 410073, China.
| | - Jianmin Yuan
- Department of Physics, Graduate School of China Academy of Engineering Physics, Beijing, 100193, China.
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, 130012, China.
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Magunia A, Rebholz M, Appi E, Papadopoulou CC, Lindenblatt H, Trost F, Meister S, Ding T, Straub M, Borisova GD, Lee J, Jin R, von der Dellen A, Kaiser C, Braune M, Düsterer S, Ališauskas S, Lang T, Heyl C, Manschwetus B, Grunewald S, Frühling U, Tajalli A, Wahid AB, Silletti L, Calegari F, Mosel P, Morgner U, Kovacev M, Thumm U, Hartl I, Treusch R, Moshammer R, Ott C, Pfeifer T. Time-resolving state-specific molecular dissociation with XUV broadband absorption spectroscopy. SCIENCE ADVANCES 2023; 9:eadk1482. [PMID: 37992169 PMCID: PMC10664994 DOI: 10.1126/sciadv.adk1482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/24/2023] [Indexed: 11/24/2023]
Abstract
The electronic and nuclear dynamics inside molecules are essential for chemical reactions, where different pathways typically unfold on ultrafast timescales. Extreme ultraviolet (XUV) light pulses generated by free-electron lasers (FELs) allow atomic-site and electronic-state selectivity, triggering specific molecular dynamics while providing femtosecond resolution. Yet, time-resolved experiments are either blind to neutral fragments or limited by the spectral bandwidth of FEL pulses. Here, we combine a broadband XUV probe pulse from high-order harmonic generation with an FEL pump pulse to observe dissociation pathways leading to fragments in different quantum states. We temporally resolve the dissociation of a specific O2+ state into two competing channels by measuring the resonances of ionic and neutral fragments. This scheme can be applied to investigate convoluted dynamics in larger molecules relevant to diverse science fields.
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Affiliation(s)
- Alexander Magunia
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Ruprecht-Karls-Universität Heidelberg, Grabengasse 1, 69117 Heidelberg, Germany
| | - Marc Rebholz
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Elisa Appi
- Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany
| | | | - Hannes Lindenblatt
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Ruprecht-Karls-Universität Heidelberg, Grabengasse 1, 69117 Heidelberg, Germany
| | - Florian Trost
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Ruprecht-Karls-Universität Heidelberg, Grabengasse 1, 69117 Heidelberg, Germany
| | - Severin Meister
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Ruprecht-Karls-Universität Heidelberg, Grabengasse 1, 69117 Heidelberg, Germany
| | - Thomas Ding
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Michael Straub
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Ruprecht-Karls-Universität Heidelberg, Grabengasse 1, 69117 Heidelberg, Germany
| | - Gergana D Borisova
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Ruprecht-Karls-Universität Heidelberg, Grabengasse 1, 69117 Heidelberg, Germany
| | - Junhee Lee
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Ruprecht-Karls-Universität Heidelberg, Grabengasse 1, 69117 Heidelberg, Germany
| | - Rui Jin
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | | | - Christian Kaiser
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Markus Braune
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Stefan Düsterer
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | | | - Tino Lang
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Christoph Heyl
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
- Helmholtz Institute Jena, Fröbelstieg 3, 07743 Jena, Germany
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - Bastian Manschwetus
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Sören Grunewald
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Ulrike Frühling
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Ayhan Tajalli
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Ammar Bin Wahid
- Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
| | - Laura Silletti
- Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
| | - Francesca Calegari
- Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
- Physics Department, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Philip Mosel
- Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - Uwe Morgner
- Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - Milutin Kovacev
- Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - Uwe Thumm
- J. R. Macdonald Laboratory, Kansas State University, Manhattan, KS 66506,USA
| | - Ingmar Hartl
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Rolf Treusch
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Robert Moshammer
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Christian Ott
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Thomas Pfeifer
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
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Migliore A, Corni S, Agostini A, Carbonera D. Unraveling the electronic origin of a special feature in the triplet-minus-singlet spectra of carotenoids in natural photosystems. Phys Chem Chem Phys 2023; 25:28998-29016. [PMID: 37859550 DOI: 10.1039/d3cp03836j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
The influence of carotenoid triplet states on the Qy electronic transitions of chlorophylls has been observed in experiments on light-harvesting complexes over the past three decades, but the interpretation of the resulting spectral feature in the triplet minus singlet (T-S) absorption spectra of photosystems is still debated, as the physical-chemical explanation of this feature has been elusive. Here, we resolve this debate, by explaining the T-S spectra of pigment complexes over the Qy-band spectral region through a comparative study of chlorophyll-carotenoid model dyads and larger pigment complexes from the main light harvesting complex of higher plants (LHCII). This goal is achieved by combining state-of-the-art time-dependent density functional theory with analysis of the relationship between electronic properties and nuclear structure, and by comparison to the experiment. We find that the special signature in the T-S spectra of both model and natural photosystems is determined by singlet-like triplet excitations that can be described as effective singlet excitations on chlorophylls influenced by a stable electronic triplet on the carotenoid. The comparison with earlier experiments on different light-harvesting complexes confirms our theoretical interpretation of the T-S spectra in the Qy spectral region. Our results indicate an important role for the chlorophyll-carotenoid electronic coupling, which is also responsible for the fast triplet-triplet energy transfer, suggesting a fast trapping of the triplet into the relaxed carotenoid structure. The gained understanding of the interplay between the electronic and nuclear structures is potentially informative for future studies of the mechanism of photoprotection by carotenoids.
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Affiliation(s)
- Agostino Migliore
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
| | - Stefano Corni
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
- CNR Institute of Nanoscience, 41125 Modena, Italy
| | - Alessandro Agostini
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
| | - Donatella Carbonera
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
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Ho PJ, Ray D, Lehmann CS, Fouda AEA, Dunford RW, Kanter EP, Doumy G, Young L, Walko DA, Zheng X, Cheng L, Southworth SH. X-ray induced electron and ion fragmentation dynamics in IBr. J Chem Phys 2023; 158:134304. [PMID: 37031139 DOI: 10.1063/5.0145215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
Characterization of the inner-shell decay processes in molecules containing heavy elements is key to understanding x-ray damage of molecules and materials and for medical applications with Auger-electron-emitting radionuclides. The 1s hole states of heavy atoms can be produced by absorption of tunable x rays and the resulting vacancy decays characterized by recording emitted photons, electrons, and ions. The 1s hole states in heavy elements have large x-ray fluorescence yields that transfer the hole to intermediate electron shells that then decay by sequential Auger-electron transitions that increase the ion’s charge state until the final state is reached. In molecules, the charge is spread across the atomic sites, resulting in dissociation to energetic atomic ions. We have used x-ray/ion coincidence spectroscopy to measure charge states and energies of I q+ and Br q′+ atomic ions following 1s ionization at the I and Br K-edges of IBr. We present the charge states and kinetic energies of the two correlated fragment ions associated with core-excited states produced during the various steps of the cascades. To understand the dynamics leading to the ion data, we develop a computational model that combines Monte-Carlo/Molecular-Dynamics (MC/MD) simulations with a classical over-the-barrier model to track inner-shell cascades and redistribution of electrons in valence orbitals and nuclear motion of fragments.
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Affiliation(s)
- Phay J. Ho
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Dipanwita Ray
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - C. Stefan Lehmann
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Adam E. A. Fouda
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Robert W. Dunford
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Elliot P. Kanter
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Gilles Doumy
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Linda Young
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
- The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637, USA
| | - Donald A. Walko
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Xuechen Zheng
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Lan Cheng
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Stephen H. Southworth
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
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Rousseau BJG, Migliore A, Stanley RJ, Beratan DN. Adenine Fine-Tunes DNA Photolyase's Repair Mechanism. J Phys Chem B 2023; 127:2941-2954. [PMID: 36947863 DOI: 10.1021/acs.jpcb.3c00566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
The comparative study of DNA repair by mesophilic and extremophilic photolyases helps us understand the evolution of these enzymes and their role in preserving life on our changing planet. The mechanism of repair of cyclobutane pyrimidine dimer lesions in DNA by electron transfer from the flavin adenine dinucleotide cofactor is the subject of intense interest. The role of adenine in mediating this process remains unresolved. Using microsecond molecular dynamics simulations, we find that adenine mediates the electron transfer in both mesophile and extremophile DNA photolyases through a similar mechanism. In fact, in all photolyases studied, the molecular conformations with the largest electronic couplings between the enzyme cofactor and DNA show the presence of adenine in 10-20% of the strongest-coupling tunneling pathways between the atoms of the electron donor and acceptor. Our theoretical analysis finds that adenine serves the critical role of fine-tuning rather than maximizing the donor-acceptor coupling within the range appropriate for the repair function.
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Affiliation(s)
- Benjamin J G Rousseau
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Agostino Migliore
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Robert J Stanley
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - David N Beratan
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
- Department of Physics, Duke University, Durham, North Carolina 27708, United States
- Department of Biochemistry, Duke University, Durham, North Carolina 27710, United States
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