1
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Brown PA, Kołacz J, Spillmann CM. Enhancing Charge Transport Using Boron and Nitrogen Substitutions into Triphenylene-Based Discotic Liquid Crystals. J Phys Chem B 2024; 128:3463-3474. [PMID: 38536772 PMCID: PMC11017245 DOI: 10.1021/acs.jpcb.3c05825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 04/12/2024]
Abstract
The substitution of p-block heteroatoms into polyaromatic hydrocarbons offers the potential for introducing enhanced molecular properties and advancing material development for electro-optical applications. Using density functional theory, we characterize the substitution of boron and nitrogen atoms into a 2,3,6,7,10,11-hexakis(hexathiol)triphenylene (TTP) core, a precursor for a material with a discotic liquid crystal phase, to determine the strength of exciton dissociation and the influence doping has on the formation of a heterojunction with graphene. The substitution of nitrogen and boron into the TTP motif enables tunability of both electron and hole coupling between hetero- and homodyads. The coupling is found to far exceed that of TTP and varied transport behavior with different combinations of doped cores of nitrogen-TTP and boron-TTP is reported. Heterodyads of nitrogen-TTP with boron-TTP appear to be ambipolar in electron/hole coupling, whereas heterodyads of boron- or nitrogen-TTP with TTP form strong electron coupling dyads and homodyads of nitrogen-TTP and boron-TTP form strong hole coupling. Finally, we describe the heterojunction of nitrogen- or boron-TTP with monolayer graphene and observe Ohmic contacts with large hole transport barriers. The presence of induced dipoles occurs at the interface in all heterojunctions, suggesting the possibility of tuning the junction with external potentials and improving exciton dissociation.
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Affiliation(s)
- Paul A. Brown
- Center for Bio/Molecular
Science and Engineering, United States Naval
Research Laboratory, Washington, District of Columbia 20375, United States
| | - Jakub Kołacz
- Center for Bio/Molecular
Science and Engineering, United States Naval
Research Laboratory, Washington, District of Columbia 20375, United States
| | - Christopher M. Spillmann
- Center for Bio/Molecular
Science and Engineering, United States Naval
Research Laboratory, Washington, District of Columbia 20375, United States
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2
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Migliore A, Messina A. Controlling the charge-transfer dynamics of two-level systems around avoided crossings. J Chem Phys 2024; 160:084112. [PMID: 38415830 DOI: 10.1063/5.0188749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/01/2024] [Indexed: 02/29/2024] Open
Abstract
Two-level quantum systems are fundamental physical models that continue to attract growing interest due to their crucial role as a building block of quantum technologies. The exact analytical solution of the dynamics of these systems is central to control theory and its applications, such as that to quantum computing. In this study, we reconsider the two-state charge transfer problem by extending and using a methodology developed to study (pseudo)spin systems in quantum electrodynamics contexts. This approach allows us to build a time evolution operator for the charge transfer system and to show new opportunities for the coherent control of the system dynamics, with a particular emphasis on the critical dynamic region around the transition state coordinate, where the avoided crossing of the energy levels occurs. We identify and propose possible experimental implementations of a class of rotations of the charge donor (or acceptor) that endow the electronic coupling matrix element with a time-dependent phase that can be employed to realize controllable coherent dynamics of the system across the avoided level crossing. The analogy of these rotations to reference frame rotations in generalized semiclassical Rabi models is discussed. We also show that the physical rotations in the charge-transfer systems can be performed so as to implement quantum gates relevant to quantum computing. From an exquisitely physical-mathematical viewpoint, our approach brings to light situations in which the time-dependent state of the system can be obtained without resorting to the special functions appearing in the Landau-Zener approach.
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Affiliation(s)
- Agostino Migliore
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Antonino Messina
- Dipartimento di Matematica e Informatica, Università degli Studi di Palermo, Via Archirafi, 34, I-90123 Palermo, Italy
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3
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Sen S, Visscher L. Towards the description of charge transfer states in solubilised LHCII using subsystem DFT. PHOTOSYNTHESIS RESEARCH 2023; 156:39-57. [PMID: 35988131 PMCID: PMC10070235 DOI: 10.1007/s11120-022-00950-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/04/2022] [Indexed: 05/05/2023]
Abstract
Light harvesting complex II (LHCII) in plants and green algae have been shown to adapt their absorption properties, depending on the concentration of sunlight, switching between a light harvesting and a non-harvesting or quenched state. In a recent work, combining classical molecular dynamics (MD) simulations with quantum chemical calculations (Liguori et al. in Sci Rep 5:15661, 2015) on LHCII, it was shown that the Chl611-Chl612 cluster of the terminal emitter domain can play an important role in modifying the spectral properties of the complex. In that work the importance of charge transfer (CT) effects was highlighted, in re-shaping the absorption intensity of the chlorophyll dimer. Here in this work, we investigate the combined effect of the local excited (LE) and CT states in shaping the energy landscape of the chlorophyll dimer. Using subsystem Density Functional Theory over the classical [Formula: see text]s MD trajectory we look explicitly into the excitation energies of the LE and the CT states of the dimer and their corresponding couplings. Upon doing so, we observe a drop in the excitation energies of the CT states, accompanied by an increase in the couplings between the LE/LE and the LE/CT states facilitated by a shorter interchromophoric distance upon equilibration. Both these changes in conjunction, effectively produces a red-shift of the low-lying mixed exciton/CT states of the supramolecular chromophore pair.
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Affiliation(s)
- Souloke Sen
- Division of Theoretical Chemistry, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Lucas Visscher
- Division of Theoretical Chemistry, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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4
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Eschenbach P, Artiukhin DG, Neugebauer J. Reliable Isotropic Electron-Paramagnetic-Resonance Hyperfine Coupling Constants from the Frozen-Density Embedding Quasi-Diabatization Approach. J Phys Chem A 2022; 126:8358-8368. [DOI: 10.1021/acs.jpca.2c04959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patrick Eschenbach
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
| | - Denis G. Artiukhin
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Johannes Neugebauer
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany
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5
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Eschenbach P, Artiukhin DG, Neugebauer J. Multi-state formulation of the frozen-density embedding quasi-diabatization approach. J Chem Phys 2021; 155:174104. [PMID: 34749503 DOI: 10.1063/5.0070486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a multi-state implementation of the recently developed frozen-density embedding diabatization (FDE-diab) methodology [D. G. Artiukhin and J. Neugebauer, J. Chem. Phys. 148, 214104 (2018)] in the Serenity program. The new framework extends the original approach such that any number of charge-localized quasi-diabatic states can be coupled, giving an access to calculations of ground and excited state spin-density distributions as well as to excitation energies. We show that it is possible to obtain results similar to those from correlated wave function approaches such as the complete active space self-consistent field method at much lower computational effort. Additionally, we present a series of approximate computational schemes, which further decrease the overall computational cost and systematically converge to the full FDE-diab solution. The proposed methodology enables computational studies on spin-density distributions and related properties for large molecular systems of biochemical interest.
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Affiliation(s)
- Patrick Eschenbach
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Denis G Artiukhin
- Department of Chemistry, Aarhus Universitet, DK-8000 Aarhus, Denmark
| | - Johannes Neugebauer
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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6
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Artiukhin DG, Eschenbach P, Matysik J, Neugebauer J. Theoretical Assessment of Hinge-Type Models for Electron Donors in Reaction Centers of Photosystems I and II as well as of Purple Bacteria. J Phys Chem B 2021; 125:3066-3079. [PMID: 33749260 DOI: 10.1021/acs.jpcb.0c10656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hinge-type molecular models for electron donors in reaction centers of Photosystems I and II and purple bacteria were investigated using a two-state computational approach based on frozen-density embedding (FDE). This methodology, dubbed FDE-diab, is known to avoid consequences of the self-interaction error as far as intermolecular phenomena are concerned, which allows a prediction of qualitatively correct spin densities for large biomolecular systems. The calculated spin density distributions are in a good agreement with available experimental results and demonstrated a very high sensitivity to changes in the relative orientation of cofactors and amino acid protonation states. This allows a validation of the previously proposed hinge-type models providing hints on possible protonation states of axial histidine molecules.
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Affiliation(s)
- Denis G Artiukhin
- Department of Chemistry, Aarhus Universitet, DK-8000 Aarhus, Denmark
| | - Patrick Eschenbach
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Jörg Matysik
- Institut für Analytische Chemie, Universität Leipzig, Linnéstr. 3, 04103 Leipzig, Germany
| | - Johannes Neugebauer
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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7
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Artiukhin DG, Eschenbach P, Neugebauer J. Computational Investigation of the Spin-Density Asymmetry in Photosynthetic Reaction Center Models from First Principles. J Phys Chem B 2020; 124:4873-4888. [DOI: 10.1021/acs.jpcb.0c02827] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Patrick Eschenbach
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Johannes Neugebauer
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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8
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Teo RD, Smithwick ER, Migliore A. 2'-Deoxy-2'-fluoro-arabinonucleic acid: a valid alternative to DNA for biotechnological applications using charge transport. Phys Chem Chem Phys 2019; 21:22869-22878. [PMID: 31599901 PMCID: PMC7050622 DOI: 10.1039/c9cp04805g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The non-biological 2'-deoxy-2'-fluoro-arabinonucleic acid (2'F-ANA) may be used as a valid alternative to DNA in biomedical and electronic applications because of its higher resistance to hydrolysis and nuclease degradation. However, the advantage of using 2'F-ANA in such applications also depends on its charge-transfer properties compared to DNA. In this study, we compare the charge conduction properties of model 2'F-ANA and DNA double-strands, using structural snapshots from MD simulations to calculate the electronic couplings and reorganization energies associated with the hole transfer steps between adjacent nucleobase pairs. Inserting these charge-transfer parameters into a kinetic model for charge conduction, we find similar conductive properties for DNA and 2'F-ANA. Moreover, we find that 2'F-ANA's enhanced chemical stability does not correspond to a reduction in the nucleobase π-stack structural flexibility relevant to both electronic couplings and reorganization free energies. Our results promote the use of 2'F-ANA in applications that can be based on charge transport, such as biosensing and chip technology, where its chemical stability and conductivity can advantageously combine.
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Affiliation(s)
- Ruijie D Teo
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.
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9
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Migliore A. How To Extract Quantitative Information on Electronic Transitions from the Density Functional Theory "Black Box". J Chem Theory Comput 2019; 15:4915-4923. [PMID: 31314526 DOI: 10.1021/acs.jctc.9b00518] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Electronic couplings and vertical excitation energies are crucial determinants of charge and excitation energy transfer rates in a broad variety of processes ranging from biological charge transfer to charge transport through inorganic materials, from molecular sensing to intracellular signaling. Density Functional Theory (DFT) is generally used to calculate these critical parameters, but the quality of the results is unpredictable because of the semiempirical nature of the available DFT approaches. This study identifies a small set of fundamental rules that enables accurate DFT computation of electronic couplings and vertical excitation energies in molecular complexes and materials. These rules are applied to predict efficient DFT approaches to coupling calculations. The result is an easy-to-use guide for reliable DFT descriptions of electronic transitions.
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Affiliation(s)
- Agostino Migliore
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
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10
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Teo RD, Smithwick ER, Migliore A, Beratan DN. A single AT-GC exchange can modulate charge transfer-induced p53-DNA dissociation. Chem Commun (Camb) 2019; 55:206-209. [PMID: 30520908 DOI: 10.1039/c8cc09048c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Using molecular dynamics simulations and electronic structure theory, we shed light on the charge dynamics that causes the differential interaction of tumor suppressor protein p53 with the p21 and Gadd45 genes in response to oxidative stress. We show that the sequence dependence of this selectivity results from competing charge transfer to the protein and through the DNA, with implications on the use of genome editing tools to influence the p53 regulatory function.
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Affiliation(s)
- Ruijie D Teo
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.
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11
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Teo RD, Terai K, Migliore A, Beratan DN. Electron transfer characteristics of 2'-deoxy-2'-fluoro-arabinonucleic acid, a nucleic acid with enhanced chemical stability. Phys Chem Chem Phys 2018; 20:26063-26067. [PMID: 30191207 PMCID: PMC6202212 DOI: 10.1039/c8cp04816a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The non-biological nucleic acid 2'-deoxy-2'-fluoro-arabinonucleic acid (2'F-ANA) may be of use because of its higher chemical stability than DNA in terms of resistance to hydrolysis and nuclease degradation. In order to investigate the charge transfer characteristics of 2'F-ANA, of relevance to applications in nucleic acid-based biosensors and chip technologies, we compare the electronic couplings for hole transfer between stacked nucleobase pairs in DNA and 2'F-ANA by carrying out density functional theory (DFT) calculations on geometries taken from molecular dynamics simulations. We find similar averages and distribution widths of the base-pair couplings in the two systems. On the basis of this result, 2'F-ANA is expected to have charge transfer properties similar to those of DNA, while offering the advantage of enhanced chemical stability. As such, 2'F-ANA may serve as a possible alternative to DNA for use in a broad range of nanobiotechnological applications. Furthermore, we show that the (experimentally observed) enhanced chemical stability resulting from the backbone modifications does not cause reduced fluctuations of the base-pair electronic couplings around the values found for "ideal" B-DNA (with standard step parameter values). Our study also supports the use of a DFT implementation, with the M11 functional, of the wave function overlap method to compute effective electronic couplings in nucleic acid systems.
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Affiliation(s)
- Ruijie D Teo
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.
| | - Kiriko Terai
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA. and Department of Natural Science, College of Liberal Arts, International Christian University, Osawa, Mitaka-shi, Tokyo 181-8585, Japan
| | - Agostino Migliore
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.
| | - David N Beratan
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA. and Department of Physics, Duke University, Durham, North Carolina 27708, USA and Department of Biochemistry, Duke University, Durham, North Carolina 27710, USA
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12
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Charge Transfer between [4Fe4S] Proteins and DNA Is Unidirectional: Implications for Biomolecular Signaling. Chem 2018; 5:122-137. [PMID: 30714018 DOI: 10.1016/j.chempr.2018.09.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Recent experiments suggest that DNA-mediated charge transport might enable signaling between the [4Fe4S] clusters in the C-terminal domains of human DNA primase and polymerase α, as well as the signaling between other replication and repair high-potential [4Fe4S] proteins. Our theoretical study demonstrates that the redox signaling cannot be accomplished exclusively by DNA-mediated charge transport because part of the charge transfer chain has an unfavorable free energy profile. We show that hole or excess electron transfer between a [4Fe4S] cluster and a nucleic acid duplex through a protein medium can occur within microseconds in one direction, while it is kinetically hindered in the opposite direction. We present a set of signaling mechanisms that may occur with the assistance of oxidants or reductants, using the allowed charge transfer processes. These mechanisms would enable the coordinated action of [4Fe4S] proteins on DNA, engaging the [4Fe4S] oxidation state dependence of the protein-DNA binding affinity.
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13
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Holmberg N, Laasonen K. Diabatic model for electrochemical hydrogen evolution based on constrained DFT configuration interaction. J Chem Phys 2018; 149:104702. [PMID: 30219020 DOI: 10.1063/1.5038959] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The accuracy of density functional theory (DFT) based kinetic models for electrocatalysis is diminished by spurious electron delocalization effects, which manifest as uncertainties in the predicted values of reaction and activation energies. In this work, we present a constrained DFT (CDFT) approach to alleviate overdelocalization effects in the Volmer-Heyrovsky mechanism of the hydrogen evolution reaction (HER). This method is applied a posteriori to configurations sampled along a reaction path to correct their relative stabilities. Concretely, the first step of this approach involves describing the reaction in terms of a set of diabatic states that are constructed by imposing suitable density constraints on the system. Refined reaction energy profiles are then recovered by performing a configuration interaction (CDFT-CI) calculation within the basis spanned by the diabatic states. After a careful validation of the proposed method, we examined HER catalysis on open-ended carbon nanotubes and discovered that CDFT-CI increased activation energies and decreased reaction energies relative to DFT predictions. We believe that a similar approach could also be adopted to treat overdelocalization effects in other electrocatalytic proton-coupled electron transfer reactions, e.g., in the oxygen reduction reaction.
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Affiliation(s)
- Nico Holmberg
- Department of Chemistry and Materials Science, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Kari Laasonen
- Department of Chemistry and Materials Science, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
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14
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Artiukhin DG, Neugebauer J. Frozen-density embedding as a quasi-diabatization tool: Charge-localized states for spin-density calculations. J Chem Phys 2018; 148:214104. [DOI: 10.1063/1.5023290] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Denis G. Artiukhin
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Johannes Neugebauer
- Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Simulation, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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15
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Rousseau BJG, Shafei S, Migliore A, Stanley RJ, Beratan DN. Determinants of Photolyase's DNA Repair Mechanism in Mesophiles and Extremophiles. J Am Chem Soc 2018; 140:2853-2861. [PMID: 29401372 DOI: 10.1021/jacs.7b11926] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Light-driven DNA repair by extremophilic photolyases is of tremendous importance for understanding the early development of life on Earth. The mechanism for flavin adenine dinucleotide repair of DNA lesions is the subject of debate and has been studied mainly in mesophilic species. In particular, the role of adenine in the repair process is poorly understood. Using molecular docking, molecular dynamics simulations, electronic structure calculations, and electron tunneling pathways analysis, we examined adenine's role in DNA repair in four photolyases that thrive at different temperatures. Our results indicate that the contribution of adenine to the electronic coupling between the flavin and the cyclobutane pyrimidine dimer lesion to be repaired is significant in three (one mesophilic and two extremophilic) of the four enzymes studied. Our analysis suggests that thermophilic and hyperthermophilic photolyases have evolved structurally to preserve the functional position (and thus the catalytic function) of adenine at their high temperatures of operation. Water molecules can compete with adenine in establishing the strongest coupling pathway for the electron transfer repair process, but the adenine contribution remains substantial. The present study also reconciles prior seemingly contradictory conclusions on the role of adenine in mesophile electron transfer repair reactions, showing how adenine-mediated superexchange is conformationally gated.
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Affiliation(s)
| | | | | | - Robert J Stanley
- Department of Chemistry, Temple University , Philadelphia, Pennsylvania 19122, United States
| | - David N Beratan
- Department of Biochemistry, Duke University , Durham, North Carolina 27710, United States
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16
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Guo X, Qu Z, Gao J. The charger transfer electronic coupling in diabatic perspective: A multi-state density functional theory study. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.10.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Kim H, Goodson T, Zimmerman PM. Density Functional Physicality in Electronic Coupling Estimation: Benchmarks and Error Analysis. J Phys Chem Lett 2017; 8:3242-3248. [PMID: 28661148 DOI: 10.1021/acs.jpclett.7b01434] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Electronic coupling estimates from constrained density functional theory configuration interaction (CDFT-CI) depend critically on choice of density functional. In this Letter, the orbital multielectron self-interaction error (OMSIE), vertical electron affinity (VEA), and vertical ionization potential (VIP) are shown to be the key indicators inherited from the density functional that determine the accuracy of electronic coupling estimates. An error metric η is derived to connect the three properties, based on the linear proportionality between electronic coupling and overlap integral, and the hypothesis that the slope of this line is a function of VEA/VIP, η = (1/Ntestset)Σitestset|-VERef × OMSIE + ΔVE - ΔVE × OMSIE|i. Based on η, BH&HLYP and LRC-ωPBEh are suggested as the best functionals for electron and hole transfer, respectively. Error metric η is therefore a useful predictor of errors in CDFT-CI electronic coupling, showing that the physical correctness of the density functional has a direct effect on the accuracy of the electronic coupling.
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Affiliation(s)
- Hyungjun Kim
- Department of Chemistry, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Theodore Goodson
- Department of Chemistry, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Paul M Zimmerman
- Department of Chemistry, University of Michigan , Ann Arbor, Michigan 48109, United States
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18
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Holmberg N, Laasonen K. Efficient Constrained Density Functional Theory Implementation for Simulation of Condensed Phase Electron Transfer Reactions. J Chem Theory Comput 2017; 13:587-601. [PMID: 28009515 DOI: 10.1021/acs.jctc.6b01085] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Constrained density functional theory (CDFT) is a versatile tool for probing the kinetics of electron transfer (ET) reactions. In this work, we present a well-scaling parallel CDFT implementation relying on a mixed basis set of Gaussian functions and plane waves, which has been specifically tailored to investigate condensed phase ET reactions using an explicit, quantum chemical representation of the solvent. The accuracy of our implementation is validated against previous theoretical results for predicting electronic couplings and charge transfer energies. Subsequently, we demonstrate the efficiency of our method by studying the intramolecular ET reaction of an organic mixed-valence compound in water using a CDFT based molecular dynamics simulation.
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Affiliation(s)
- Nico Holmberg
- COMP Centre of Excellence in Computational Nanoscience, Department of Chemistry, Aalto University , P.O. Box 16100, FI-00076 Aalto, Finland
| | - Kari Laasonen
- COMP Centre of Excellence in Computational Nanoscience, Department of Chemistry, Aalto University , P.O. Box 16100, FI-00076 Aalto, Finland
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19
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Akimov AV. Nonadiabatic Molecular Dynamics with Tight-Binding Fragment Molecular Orbitals. J Chem Theory Comput 2016; 12:5719-5736. [DOI: 10.1021/acs.jctc.6b00955] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Alexey V. Akimov
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, United States
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20
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Melander M, Jónsson EÖ, Mortensen JJ, Vegge T, García Lastra JM. Implementation of Constrained DFT for Computing Charge Transfer Rates within the Projector Augmented Wave Method. J Chem Theory Comput 2016; 12:5367-5378. [DOI: 10.1021/acs.jctc.6b00815] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marko Melander
- Department
of Energy Conversion and Storage, Technical University of Denmark, DK-4000 Roskilde, Denmark
| | - Elvar Ö. Jónsson
- COMP,
Applied Physics Department, Aalto University FI-00076 Aalto, Espoo, Finland
| | - Jens J. Mortensen
- Department
of Physics, Center for Atomic-scale Materials Design, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Tejs Vegge
- Department
of Energy Conversion and Storage, Technical University of Denmark, DK-4000 Roskilde, Denmark
| | - Juan Maria García Lastra
- Department
of Energy Conversion and Storage, Technical University of Denmark, DK-4000 Roskilde, Denmark
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21
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Effects of G-Quadruplex Topology on Electronic Transfer Integrals. NANOMATERIALS 2016; 6:nano6100184. [PMID: 28335314 PMCID: PMC5245196 DOI: 10.3390/nano6100184] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/19/2016] [Accepted: 09/30/2016] [Indexed: 02/01/2023]
Abstract
G-quadruplex is a quadruple helical form of nucleic acids that can appear in guanine-rich parts of the genome. The basic unit is the G-tetrad, a planar assembly of four guanines connected by eight hydrogen bonds. Its rich topology and its possible relevance as a drug target for a number of diseases have stimulated several structural studies. The superior stiffness and electronic π-π overlap between consecutive G-tetrads suggest exploitation for nanotechnologies. Here we inspect the intimate link between the structure and the electronic properties, with focus on charge transfer parameters. We show that the electronic couplings between stacked G-tetrads strongly depend on the three-dimensional atomic structure. Furthermore, we reveal a remarkable correlation with the topology: a topology characterized by the absence of syn-anti G-G sequences can better support electronic charge transfer. On the other hand, there is no obvious correlation of the electronic coupling with usual descriptors of the helix shape. We establish a procedure to maximize the correlation with a global helix shape descriptor.
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22
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Ren H, Provorse MR, Bao P, Qu Z, Gao J. Multistate Density Functional Theory for Effective Diabatic Electronic Coupling. J Phys Chem Lett 2016; 7:2286-93. [PMID: 27248004 PMCID: PMC5790425 DOI: 10.1021/acs.jpclett.6b00915] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Multistate density functional theory (MSDFT) is presented to estimate the effective transfer integral associated with electron and hole transfer reactions. In this approach, the charge-localized diabatic states are defined by block localization of Kohn-Sham orbitals, which constrain the electron density for each diabatic state in orbital space. This differs from the procedure used in constrained density functional theory that partitions the density within specific spatial regions. For a series of model systems, the computed transfer integrals are consistent with experimental data and show the expected exponential attenuation with the donor-acceptor separation. The present method can be used to model charge transfer reactions including processes involving coupled electron and proton transfer.
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Affiliation(s)
- Haisheng Ren
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Makenzie R. Provorse
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Chemistry and Chemical Biology, University of California Merced, Merced, California 95343, United States
| | - Peng Bao
- State Key Laboratory for Structural Chemistry of Unstable & Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, People’s Republic of China 100190
| | - Zexing Qu
- Theoretical Chemistry Institute, Jilin University, Changchun, People’s Republic of China 130023
| | - Jiali Gao
- Theoretical Chemistry Institute, Jilin University, Changchun, People’s Republic of China 130023
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
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23
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Cabeza de Vaca I, Acebes S, Guallar V. Ecoupling server: A tool to compute and analyze electronic couplings. J Comput Chem 2016; 37:1740-5. [DOI: 10.1002/jcc.24392] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Israel Cabeza de Vaca
- Joint BSC-IRB Research Program in Computational Biology, Barcelona Supercomputing Center, Life Science Department, Electronic and Atomic Modeling Group; Nexus II, C/Jordi Girona, 29 Barcelona 08034 Spain
- Department of Chemistry; Yale University; New Haven Connecticut 06520-8107
| | - Sandra Acebes
- Joint BSC-IRB Research Program in Computational Biology, Barcelona Supercomputing Center, Life Science Department, Electronic and Atomic Modeling Group; Nexus II, C/Jordi Girona, 29 Barcelona 08034 Spain
| | - Victor Guallar
- Joint BSC-IRB Research Program in Computational Biology, Barcelona Supercomputing Center, Life Science Department, Electronic and Atomic Modeling Group; Nexus II, C/Jordi Girona, 29 Barcelona 08034 Spain
- Institució Catalana De Recerca I Estudis Avançats (ICREA); Barcelona Spain
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24
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Abstract
Constrained Subsystem Density Fucntional Theory (CSDFT) allows to compute diabatic states for charge transfer reactions using the machinery of the constrained DFT method, and at the same time is able to embed such diabatic states in a molecular environment via a subsystem DFT scheme.
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Affiliation(s)
- Pablo Ramos
- Department of Chemistry
- Rutgers University
- Newark
- USA
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25
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Hernández-Fernández F, Pavanello M, Visscher L. Effect of metallation, substituents and inter/intra-molecular polarization on electronic couplings for hole transport in stacked porphyrin dyads. Phys Chem Chem Phys 2016; 18:21122-32. [DOI: 10.1039/c6cp00516k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Hole transport properties for stacked porphyrins are analyzed with density functional theory.
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Affiliation(s)
- F. Hernández-Fernández
- Theoretical Chemistry
- Faculty of Sciences
- VU University Amsterdam
- 1081 HV Amsterdam
- The Netherlands
| | - M. Pavanello
- Department of Chemistry
- Rutgers University
- Newark
- USA
| | - L. Visscher
- Theoretical Chemistry
- Faculty of Sciences
- VU University Amsterdam
- 1081 HV Amsterdam
- The Netherlands
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26
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Blumberger J. Recent Advances in the Theory and Molecular Simulation of Biological Electron Transfer Reactions. Chem Rev 2015; 115:11191-238. [DOI: 10.1021/acs.chemrev.5b00298] [Citation(s) in RCA: 238] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jochen Blumberger
- Department of Physics and
Astronomy, University College London, Gower Street, London WC1E 6BT, U.K
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27
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28
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Ramos P, Papadakis M, Pavanello M. Performance of Frozen Density Embedding for Modeling Hole Transfer Reactions. J Phys Chem B 2015; 119:7541-57. [DOI: 10.1021/jp511275e] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Pablo Ramos
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Markos Papadakis
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Michele Pavanello
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
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29
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Akimov AV, Prezhdo OV. Large-Scale Computations in Chemistry: A Bird’s Eye View of a Vibrant Field. Chem Rev 2015; 115:5797-890. [DOI: 10.1021/cr500524c] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Alexey V. Akimov
- Department
of Chemistry, University of South California, Los Angeles, California 90089, United States
| | - Oleg V. Prezhdo
- Department
of Chemistry, University of South California, Los Angeles, California 90089, United States
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30
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Sun W, Shao M, Ren H, Xiao D, Qin X, Deng L, Chen X, Gao J. A New Type of Electron Relay Station in Proteins: Three-Piece S:Π∴S↔S∴Π:S Resonance Structure. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2015; 119:6998-7005. [PMID: 26113884 PMCID: PMC4476553 DOI: 10.1021/jp512628x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A type of relay station for electron transfer in proteins, three-piece five-electron bonding, is introduced in this paper, which is also first proposed here. The ab initio calculations predict the formation of S:Π∴S↔S∴Π:S resonance binding with an aromatic ring located in the middle of two sulfur-containing groups, which may participate in electron-hole transport in proteins. These special structures can lower the local ionization energies to capture electron holes efficiently and may be easily formed and broken because of their proper binding energies. In addition, the UV-vis spectra provide evidence of the formations of the three-piece five-electron binding. The cooperation of three adjacent pieces may be advantage to promote electron transfer a longer distance.
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Affiliation(s)
- Weichao Sun
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, People’s Republic of China
| | - Mengyao Shao
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, People’s Republic of China
| | - Haisheng Ren
- Department of Chemistry and Supercomputing Institute University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Dong Xiao
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, People’s Republic of China
| | - Xin Qin
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, People’s Republic of China
| | - Li Deng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, People’s Republic of China
| | - Xiaohua Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, People’s Republic of China
- Department of Chemistry and Supercomputing Institute University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jiali Gao
- Department of Chemistry and Supercomputing Institute University of Minnesota, Minneapolis, Minnesota 55455, United States
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31
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Sancho-García JC, Pérez-Jiménez AJ. Theoretical study of stability and charge-transport properties of coronene molecule and some of its halogenated derivatives: A path to ambipolar organic-based materials? J Chem Phys 2014; 141:134708. [DOI: 10.1063/1.4897205] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J. C. Sancho-García
- Departamento de Química Física, Universidad de Alicante, E-03080 Alicante, Spain
| | - A. J. Pérez-Jiménez
- Departamento de Química Física, Universidad de Alicante, E-03080 Alicante, Spain
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32
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Pilmé J, Luppi E, Bergès J, Houée-Lévin C, de la Lande A. Topological analyses of time-dependent electronic structures: application to electron-transfers in methionine enkephalin. J Mol Model 2014; 20:2368. [PMID: 25060148 DOI: 10.1007/s00894-014-2368-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 06/22/2014] [Indexed: 10/25/2022]
Abstract
We have studied electron transfers (ET) between electron donors and acceptors, taking as illustrative example the case of ET in methionine enkephalin. Recent pulse and gamma radiolysis experiments suggested that an ultrafast ET takes place from the C-terminal tyrosine residue to the N-terminal, oxidized, methionine residue. According to standard theoretical frameworks like the Marcus theory, ET can be decomposed into two successive steps: i) the achievement through thermal fluctuations, of a set of nuclear coordinates associated with degeneracy of the two electronic states, ii) the electron tunneling from the donor molecular orbital to the acceptor molecular orbital. Here, we focus on the analysis of the time-dependent electronic dynamics during the tunneling event. This is done by extending the approaches based on the topological analyses of stationary electronic density and of the electron localization function (ELF) to the time-dependent domain. Furthermore, we analyzed isosurfaces of the divergence of the current density, showing the paths that are followed by the tunneling electron from the donor to the acceptor. We show how these functions can be calculated with constrained density functional theory. Beyond this work, the topological tools used here can open up new opportunities for the electronic description in the time-dependent domain.
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Affiliation(s)
- Julien Pilmé
- Laboratoire de Chimie Théorique, UPMC Université Paris 06, UMR 7616, F-75005, Paris, France,
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33
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Ramos P, Pavanello M. Quantifying Environmental Effects on the Decay of Hole Transfer Couplings in Biosystems. J Chem Theory Comput 2014; 10:2546-56. [DOI: 10.1021/ct400921r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Pablo Ramos
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Michele Pavanello
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
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34
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Huang TH, Zhang MH. Novel copper(I) complexes with extended π⋯π interactions: Synthesis, structure, characterization and spectroscopic properties. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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Migliore A, Polizzi NF, Therien M, Beratan DN. Biochemistry and theory of proton-coupled electron transfer. Chem Rev 2014; 114:3381-465. [PMID: 24684625 PMCID: PMC4317057 DOI: 10.1021/cr4006654] [Citation(s) in RCA: 345] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Indexed: 02/01/2023]
Affiliation(s)
- Agostino Migliore
- Department
of Chemistry, Department of Biochemistry, and Department of Physics, Duke University, Durham, North Carolina 27708, United States
| | - Nicholas F. Polizzi
- Department
of Chemistry, Department of Biochemistry, and Department of Physics, Duke University, Durham, North Carolina 27708, United States
| | - Michael
J. Therien
- Department
of Chemistry, Department of Biochemistry, and Department of Physics, Duke University, Durham, North Carolina 27708, United States
| | - David N. Beratan
- Department
of Chemistry, Department of Biochemistry, and Department of Physics, Duke University, Durham, North Carolina 27708, United States
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36
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Cave RJ, Newton MD. Multistate treatments of the electronic coupling in donor-bridge-acceptor systems: insights and caveats from a simple model. J Phys Chem A 2013; 118:7221-34. [PMID: 24266545 DOI: 10.1021/jp408913k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We use a simple one-dimensional delta function electronic structure model (dfm) to investigate the results of a pair of multistate diabatization techniques (i.e., based on n states, with n ≥ 2) for linear DBA and DBBA (donor-bridge-acceptor) electron-transfer systems. In particular, we focus on the physical meaning of the couplings obtained from multistate methods and their relationship to two-state (n = 2) coupling elements. On the basis of the simple dfm approach, which allows exact as well as finite basis set treatment and has no many-electron effects, we conclude that for orthogonal diabatic states, it is difficult to assign clear physical significance to multistate matrix elements for coupling beyond nearest-neighbor contacts. The implications of these results for more complex multistate many-electron treatments are discussed. It is emphasized that physically meaningful coupling elements must involve states that are orthogonal, either explicitly or implicitly.
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Affiliation(s)
- Robert J Cave
- Department of Chemistry, Harvey Mudd College , Claremont, California 91711, United States
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37
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Brancolini G, Migliore A, Corni S, Fuentes-Cabrera M, Luque FJ, Di Felice R. Dynamical treatment of charge transfer through duplex nucleic acids containing modified adenines. ACS NANO 2013; 7:9396-406. [PMID: 24060008 PMCID: PMC3903158 DOI: 10.1021/nn404165y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We address the issue of whether chemical alterations of nucleobases are an effective tool to modulate charge transfer through DNA molecules. Our investigation uses a multilevel computational approach based on classical molecular dynamics and quantum chemistry. We find yet another piece of evidence that structural fluctuations are a key factor to determine the electronic structure of double-stranded DNA. We argue that the electronic structure and charge transfer ability of flexible polymers is the result of a complex intertwining of various structural, dynamical and chemical factors. Chemical intuition may be used to design molecular wires, but this is not the sole component in the complex charge transfer mechanism through DNA.
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Affiliation(s)
- Giorgia Brancolini
- CNR Institute of Nanoscience, S3 Center, Via Campi 213/A, 41125 Modena, Italy
- (GB); (RDF). Phone: +39-059-205-5320. Fax: +39-059-205-5651
| | - Agostino Migliore
- School of Chemistry, Tel Aviv University, 69978 Tel Aviv, Israel
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA
| | - Stefano Corni
- CNR Institute of Nanoscience, S3 Center, Via Campi 213/A, 41125 Modena, Italy
| | - Miguel Fuentes-Cabrera
- Center for Nanophase Materials Sciences, and Computer Science and Mathematics Division, Oak Ridge National Laboratory, P O Box 2008, Oak Ridge, Tennessee 37831 6494, USA
| | - F. Javier Luque
- Department de Fisicoquímica and Institut de Biomedicina (IBUB), Facultat de Farmàcia, Universitat de Barcelona, Avenida Diagonal 643, Barcelona 08028, Spain
| | - Rosa Di Felice
- CNR Institute of Nanoscience, S3 Center, Via Campi 213/A, 41125 Modena, Italy
- Department of Physics and Astronomy, University of Southern California, Los Angeles, CA 90089 USA
- (GB); (RDF). Phone: +39-059-205-5320. Fax: +39-059-205-5651
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38
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Pavanello M, Van Voorhis T, Visscher L, Neugebauer J. An accurate and linear-scaling method for calculating charge-transfer excitation energies and diabatic couplings. J Chem Phys 2013; 138:054101. [DOI: 10.1063/1.4789418] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Rosta E, Warshel A. On the Origins of the Linear Free Energy Relationships: Exploring the Nature of the Off-Diagonal Coupling Elements in S(N)2 Reactions. J Chem Theory Comput 2012; 8:3574-3585. [PMID: 23329895 PMCID: PMC3544163 DOI: 10.1021/ct2009329] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Understanding the relationship between the adiabatic free energy profiles of chemical reactions and the underlining diabatic states is central to the description of chemical reactivity. The diabatic states form the theoretical basis of Linear Free Energy Relationships (LFERs) and thus play a major role in physical organic chemistry and related fields. However, the theoretical justification for some of the implicit LFER assumptions has not been fully established by quantum mechanical studies. This study follows our earlier works(1,2) and uses the ab initio frozen density functional theory (FDFT) method(3) to evaluate both the diabatic and adiabatic free energy surfaces and to determine the corresponding off-diagonal coupling matrix elements for a series of S(N)2 reactions. It is found that the off-diagonal coupling matrix elements are almost the same regardless of the nucleophile and the leaving group but change upon changing the central group. Furthermore, it is also found that the off diagonal elements are basically the same in gas phase and in solution, even when the solvent is explicitly included in the ab initio calculations. Furthermore, our study establishes that the FDFT diabatic profiles are parabolic to a good approximation thus providing a first principle support to the origin of LFER. These findings further support the basic approximation of the EVB treatment.
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Affiliation(s)
- Edina Rosta
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892-0520
- Department of Chemistry, King’s College London, London, SE1 1UL, UK
| | - Arieh Warshel
- Department of Chemistry, University of Southern California, 3620 S. McClintock Ave., Los Angeles, California, 90089-1062
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40
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Zhang J, Valeev EF. Hybrid one-electron/many-electron methods for ionized states of molecular clusters. Phys Chem Chem Phys 2012; 14:7863-71. [DOI: 10.1039/c2cp40222j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Tang XD, Liao Y, Gao HZ, Geng Y, Su ZM. Theoretical study of the bridging effect on the charge carrier transport properties of cyclooctatetrathiophene and its derivatives. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm14871d] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Pavanello M, Neugebauer J. Modelling charge transfer reactions with the frozen density embedding formalism. J Chem Phys 2011; 135:234103. [DOI: 10.1063/1.3666005] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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