1
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Sarhangi SM, Matyushov DV. Anomalously Small Reorganization Energy of the Half Redox Reaction of Azurin. J Phys Chem B 2022; 126:3000-3011. [DOI: 10.1021/acs.jpcb.2c00338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Setare M. Sarhangi
- Department of Physics, Arizona State University, P.O. Box 871504, Tempe, Arizona 85287-1504, United States
| | - Dmitry V. Matyushov
- School of Molecular Sciences and Department of Physics, Arizona State University, P.O. Box 871504, Tempe, Arizona 85287-1504, United States
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2
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Gideon DA, Nirusimhan V, Manoj KM. Are plastocyanin and ferredoxin specific electron carriers or generic redox capacitors? Classical and murburn perspectives on two photosynthetic proteins. J Biomol Struct Dyn 2020; 40:1995-2009. [PMID: 33073701 DOI: 10.1080/07391102.2020.1835715] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In the light reaction of oxygenic photosynthesis, plastocyanin (PC) and ferredoxins (Fd) are small/diffusible redox-active proteins playing key roles in electron transfer/transport phenomena. In the Z-scheme mechanistic purview, they are considered as specific affinity binding-based electron-relay agents, linking the functions of Cytochrome b6f (Cyt. b6f), Photosystem I (PS I) and Fd:NADPH oxidoreductase (FNR). The murburn explanation for photolytic photophosphorylation deems PC/Fd as generic 'redox capacitors', temporally accepting and releasing one-electron equivalents in reaction milieu. Herein, we explore the two theories with respect to structural, distributional and functional aspects of PC/Fd. Amino acid residues located on the surface loci of key patches of PC/Fd vary in electrostatic/contour (topography) signatures. Crystal structures of four different complexes each of Cyt.f-PC and Fd-FNR show little conservation in the contact-surfaces, thereby discrediting 'affinity binding-based electron transfers (ET)' as an evolutionary logic. Further, thermodynamic and kinetic data of wildtype and mutant proteins interactions do not align with Z-scheme. Furthermore, micromolar physiological concentrations of PC and the non-conducive architecture of chloroplasts render the classical model untenable. In the murburn model, as PC is optional, the observation that plants lacking PC survive and grow is justified. Further, the low physiological concentration/distribution of PC in chloroplast lumen/stroma is supported by murburn equilibriums, as higher concentrations would limit electron transfers. Thus, structural evidence, interactive dynamics with redox partners and physiological distribution/role of PC/Fd support the murburn perspective that these proteins serve as generic redox-capacitors in chloroplasts.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Daniel Andrew Gideon
- Department of Biochemistry, Satyamjayatu: The Science & Ethics Foundation, Palakkad, India.,Department of Biotechnology and Bioinformatics, Bishop Heber College (Autonomous), Tiruchirappalli, India
| | - Vijay Nirusimhan
- Department of Biotechnology and Bioinformatics, Bishop Heber College (Autonomous), Tiruchirappalli, India
| | - Kelath Murali Manoj
- Department of Biochemistry, Satyamjayatu: The Science & Ethics Foundation, Palakkad, India
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3
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Zhang K, Ren S, Caricato M. Multistate QM/QM Extrapolation of UV/Vis Absorption Spectra with Point Charge Embedding. J Chem Theory Comput 2020; 16:4361-4372. [DOI: 10.1021/acs.jctc.0c00339] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kaihua Zhang
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Sijin Ren
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Marco Caricato
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
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4
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Burganov TI, Monari A, Katsyuba SA, Mamedov VA, Zhukova NA, Assfeld X. 2,3-(Dibenzimidazol-2-yl)quinoxalines: Unexpected Dynamical Effect on Steady-State Electronic Absorption Spectra. J Phys Chem B 2019; 123:5514-5523. [PMID: 31192599 DOI: 10.1021/acs.jpcb.9b00974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report on the electronic absorption spectra, conformational behavior, and intra- and intermolecular hydrogen bonds of 2,3-(dibenzimidazol-2-yl)-quinoxaline (DBIQ). The experimentally found strong solvent dependence of the absorption spectra of DBIQ solutions cannot be assigned to electronic excitations of the equilibrium ground-state DBIQ structure. Extended consideration including the nonequilibrium structures within the framework of ab initio molecular dynamics (MD) revealed the importance of torsion molecular motions not covered by the static case. The strong impact of solute-solvent hydrogen bonding on stabilization of these nonequilibrium structures and on conformational composition of DBIQ was demonstrated. A presence of twisted nonplanar geometries along the whole MD trajectory was shown to drastically influence not only energies but also characters of electronic excitations, resulting in a change of local π-π* character in a solution of 1,2-dichloroethane to charge-transfer character in polar dimethylsulfoxide.
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Affiliation(s)
- Timur I Burganov
- FRC Kazan Scientific Center of RAS , Arbuzov Institute of Organic and Physical Chemistry , Arbuzov st. 8 , 420088 Kazan , Russia
| | - Antonio Monari
- Université de Lorraine and CNRS, LPCT UMR 7019 , F-54000 Nancy , France
| | - Sergey A Katsyuba
- FRC Kazan Scientific Center of RAS , Arbuzov Institute of Organic and Physical Chemistry , Arbuzov st. 8 , 420088 Kazan , Russia
| | - Vakhid A Mamedov
- FRC Kazan Scientific Center of RAS , Arbuzov Institute of Organic and Physical Chemistry , Arbuzov st. 8 , 420088 Kazan , Russia
| | - Nataliya A Zhukova
- FRC Kazan Scientific Center of RAS , Arbuzov Institute of Organic and Physical Chemistry , Arbuzov st. 8 , 420088 Kazan , Russia
| | - Xavier Assfeld
- Université de Lorraine and CNRS, LPCT UMR 7019 , F-54000 Nancy , France
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5
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Di Remigio R, Giovannini T, Ambrosetti M, Cappelli C, Frediani L. Fully Polarizable QM/Fluctuating Charge Approach to Two-Photon Absorption of Aqueous Solutions. J Chem Theory Comput 2019; 15:4056-4068. [DOI: 10.1021/acs.jctc.9b00305] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Roberto Di Remigio
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Tromsø - The Arctic University of Norway, N-9037 Tromsø, Norway
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Tommaso Giovannini
- Department of Chemistry, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | | | - Chiara Cappelli
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Luca Frediani
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Tromsø - The Arctic University of Norway, N-9037 Tromsø, Norway
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6
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Giovannini T, Lafiosca P, Chandramouli B, Barone V, Cappelli C. Effective yet reliable computation of hyperfine coupling constants in solution by a QM/MM approach: Interplay between electrostatics and non-electrostatic effects. J Chem Phys 2019; 150:124102. [DOI: 10.1063/1.5080810] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Piero Lafiosca
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Balasubramanian Chandramouli
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Compunet, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Chiara Cappelli
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
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7
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Wang J, Li C, Wong WL, Chow CF. Novel Iron-Based Polynuclear Metal Complexes [FeII(L)(CN)4]2–[FeIII(H2O)3Cl]2: Synthesis and Study of Photovoltaic Properties for Dye-Sensitized Solar Cell. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193518140094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Marazzi M, Gattuso H, Fumanal M, Daniel C, Monari A. Charge-Transfer versus Charge-Separated Triplet Excited States of [Re I (dmp)(CO) 3 (His124)(Trp122)] + in Water and in Modified Pseudomonas aeruginosa Azurin Protein. Chemistry 2019; 25:2519-2526. [PMID: 30379366 DOI: 10.1002/chem.201803685] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/17/2018] [Indexed: 12/20/2022]
Abstract
A computational investigation of the triplet excited states of a rhenium complex electronically coupled with a tryptophan side chain and bound to an azurin protein is presented. In particular, by using high-level molecular modeling, evidence is provided for how the electronic properties of the excited-state manifolds strongly depend on coupling with the environment. Indeed, only upon explicitly taking into account the protein environment can two stable triplet states of metal-to-ligand charge transfer or charge-separated nature be recovered. In addition, it is also demonstrated how the rhenium complex plus tryptophan system in an aqueous environment experiences too much flexibility, which prevents the two chromophores from being electronically coupled. This occurrence disables the formation of a charge-separated state. The successful strategy requires a multiscale approach of combining molecular dynamics and quantum chemistry. In this context, the strategy used to parameterize the force fields for the electronic triplet states of the metal complex is also presented.
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Affiliation(s)
- Marco Marazzi
- Université de Lorraine, CNRS, LPCT UMR 7019, Boulevard des Aiguillettes, Vandoeuvre-lès-Nancy, 54000, Nancy, France.,Departamento de Química, Centro de Investigacíon en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios, 53, 26006, Logroño, Spain
| | - Hugo Gattuso
- Université de Lorraine, CNRS, LPCT UMR 7019, Boulevard des Aiguillettes, Vandoeuvre-lès-Nancy, 54000, Nancy, France
| | - Maria Fumanal
- Laboratoire de Chimie Quantique, Institut de Chimie Strasbourg, UMR-7177, CNRS/Université de Strasbourg, 1 Rue Blaise Pascal BP 296/R8, 67008, Strasbourg, France
| | - Chantal Daniel
- Laboratoire de Chimie Quantique, Institut de Chimie Strasbourg, UMR-7177, CNRS/Université de Strasbourg, 1 Rue Blaise Pascal BP 296/R8, 67008, Strasbourg, France
| | - Antonio Monari
- Université de Lorraine, CNRS, LPCT UMR 7019, Boulevard des Aiguillettes, Vandoeuvre-lès-Nancy, 54000, Nancy, France
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9
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Marazzi M, Gattuso H, Monari A, Assfeld X. Steady-State Linear and Non-linear Optical Spectroscopy of Organic Chromophores and Bio-macromolecules. Front Chem 2018; 6:86. [PMID: 29666792 PMCID: PMC5891624 DOI: 10.3389/fchem.2018.00086] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/12/2018] [Indexed: 01/05/2023] Open
Abstract
Bio-macromolecules as DNA, lipid membranes and (poly)peptides are essential compounds at the core of biological systems. The development of techniques and methodologies for their characterization is therefore necessary and of utmost interest, even though difficulties can be experienced due to their intrinsic complex nature. Among these methods, spectroscopies, relying on optical properties are especially important to determine their macromolecular structures and behaviors, as well as the possible interactions and reactivity with external dyes—often drugs or pollutants—that can (photo)sensitize the bio-macromolecule leading to eventual chemical modifications, thus damages. In this review, we will focus on the theoretical simulation of electronic spectroscopies of bio-macromolecules, considering their secondary structure and including their interaction with different kind of (photo)sensitizers. Namely, absorption, emission and electronic circular dichroism (CD) spectra are calculated and compared with the available experimental data. Non-linear properties will be also taken into account by two-photon absorption, a highly promising technique (i) to enhance absorption in the red and infra-red windows and (ii) to enhance spatial resolution. Methodologically, the implications of using implicit and explicit solvent, coupled to quantum and thermal samplings of the phase space, will be addressed. Especially, hybrid quantum mechanics/molecular mechanics (QM/MM) methods are explored for a comparison with solely QM methods, in order to address the necessity to consider an accurate description of environmental effects on spectroscopic properties of biological systems.
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Affiliation(s)
- Marco Marazzi
- Laboratoire de Physique et Chimie Théoriques, Université de Lorraine-Nancy, UMR 7019, Vandoeuvre-lés-Nancy, France.,Laboratoire de Physique et Chimie Théoriques, Centre National de la Recherche Scientifique, UMR 7019, Vandoeuvre-lès-Nancy, France.,Departamento de Química, Centro de Investigacíon en Síntesis Química (CISQ), Universidad de La Rioja, Logroño, Spain
| | - Hugo Gattuso
- Laboratoire de Physique et Chimie Théoriques, Université de Lorraine-Nancy, UMR 7019, Vandoeuvre-lés-Nancy, France.,Laboratoire de Physique et Chimie Théoriques, Centre National de la Recherche Scientifique, UMR 7019, Vandoeuvre-lès-Nancy, France
| | - Antonio Monari
- Laboratoire de Physique et Chimie Théoriques, Université de Lorraine-Nancy, UMR 7019, Vandoeuvre-lés-Nancy, France.,Laboratoire de Physique et Chimie Théoriques, Centre National de la Recherche Scientifique, UMR 7019, Vandoeuvre-lès-Nancy, France
| | - Xavier Assfeld
- Laboratoire de Physique et Chimie Théoriques, Université de Lorraine-Nancy, UMR 7019, Vandoeuvre-lés-Nancy, France.,Laboratoire de Physique et Chimie Théoriques, Centre National de la Recherche Scientifique, UMR 7019, Vandoeuvre-lès-Nancy, France
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10
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Boulanger E, Harvey JN. QM/MM methods for free energies and photochemistry. Curr Opin Struct Biol 2018; 49:72-76. [PMID: 29414514 DOI: 10.1016/j.sbi.2018.01.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 12/17/2017] [Accepted: 01/02/2018] [Indexed: 11/27/2022]
Abstract
Hybrid computational methods describing a small region of a biomolecular system with quantum mechanics and the bulk with molecular mechanics, referred to as QM/MM methods, are now a central part of computational biochemistry. This review considers developments in the QM/MM approach that make it easier to calculate free energies using accurate QM-based potential energy expressions. We also describe techniques to treat electronic coupling between the core region and the MM environment. Polarizability of the protein matrix is important but so is electronic coupling. Applications of these new methods, especially to photochemistry, are discussed.
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Affiliation(s)
- Eliot Boulanger
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
| | - Jeremy N Harvey
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
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11
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Giovannini T, Lafiosca P, Cappelli C. A General Route to Include Pauli Repulsion and Quantum Dispersion Effects in QM/MM Approaches. J Chem Theory Comput 2017; 13:4854-4870. [PMID: 28898079 DOI: 10.1021/acs.jctc.7b00776] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A methodology to account for nonelectrostatic interactions in Quantum Mechanical (QM)/Molecular Mechanics (MM) approaches is developed. Formulations for Pauli repulsion and dispersion energy, explicitly depending on the QM density, are derived. Such expressions are based on the definition of an auxiliary density on the MM portion and the Tkatchenko-Scheffler (TS) approach, respectively. The developed method is general enough to be applied to any QM/MM method and partition, provided an accurate tuning of a small number of parameters is obtained. The coupling of the method with both nonpolarizable and fully polarizable QM/fluctuating charge (FQ) approaches is reported and applied. A suitable parametrization for the aqueous solution, so that its most representative features are well reproduced, is outlined. Then, the obtained parametrization and method are applied to calculate the nonelectrostatic (repulsion and dispersion) interaction energy of nicotine in aqueous solution.
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Affiliation(s)
| | - Piero Lafiosca
- Scuola Normale Superiore , Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Chiara Cappelli
- Scuola Normale Superiore , Piazza dei Cavalieri 7, 56126 Pisa, Italy
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12
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Pastore M, Assfeld X, Mosconi E, Monari A, Etienne T. Unveiling the nature of post-linear response Z-vector method for time-dependent density functional theory. J Chem Phys 2017; 147:024108. [DOI: 10.1063/1.4991561] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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13
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Skúpa K, Urban J. Modifications of the chromophore of Spinach aptamer based on QM:MM calculations. J Mol Model 2017; 23:46. [PMID: 28154983 DOI: 10.1007/s00894-017-3232-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/13/2017] [Indexed: 10/20/2022]
Abstract
Spinach aptamer was developed as an RNA analog of the green fluorescent protein. The aptamer interacts with its ligand and modifies its electronic spectrum so that it fluoresces brightly at the wavelength of 501 nm. Song et al. investigated modifications of the ligand in their experimental study and found a molecule emitting at 523 nm upon creating a complex with the Spinach aptamer. The crystal structure of the aptamer in complex with its original ligand has been published, which enabled us to study the system computationally. In this article, we suggest several new modifications of the ligand that shift the emission maximum of the complex to even longer wavelengths. Our results are based on combined quantum mechanical/molecular mechanical calculations with DFT method used for geometry optimization and TD-DFT for calculations of absorption and emission energies.
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Affiliation(s)
- Katarína Skúpa
- Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Bratislava, Slovakia.
| | - Ján Urban
- Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Bratislava, Slovakia
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14
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Pierrat P, Hesse S, Cebrián C, Gros PC. Controlling charge-transfer properties through a microwave-assisted mono- or bis-annulation of dialkynyl-N-(het)arylpyrroles. Org Biomol Chem 2017; 15:8568-8575. [DOI: 10.1039/c7ob02149f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Charge-transfer properties dependence on mono or bisannulation of dialkynyl-N-(het)arylpyrroles is reported.
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Affiliation(s)
| | - Stéphanie Hesse
- Université de Lorraine – Metz & CNRS
- HéCRIn
- SRSMC
- 57078 Metz
- France
| | | | - Philippe C. Gros
- Université de Lorraine – Nancy & CNRS
- HéCRIn
- SRSMC
- 54506 Vandoeuvre-Lès-Nancy
- France
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15
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Hurd CA, Besley NA, Robinson D. A QM/MM study of the nature of the entatic state in plastocyanin. J Comput Chem 2016; 38:1431-1437. [PMID: 27859435 PMCID: PMC5434870 DOI: 10.1002/jcc.24666] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/23/2016] [Accepted: 10/27/2016] [Indexed: 11/27/2022]
Abstract
Plastocyanin is a copper containing protein that is involved in the electron transfer process in photosynthetic organisms. The active site of plastocyanin is described as an entatic state whereby its structure represents a compromise between the structures favored by the oxidized and reduced forms. In this study, the nature of the entatic state is investigated through density functional theory‐based hybrid quantum mechanics/molecular mechanics (QM/MM) molecular dynamics simulations. The strain energy is computed to be 12.8 kcal/mol and 14.5 kcal/mol for the oxidized and reduced forms of the protein, indicating that the active site has an intermediate structure. It is shown that the energy gap between the oxidized and reduced forms varies significantly with the fluctuations in the structure of the active site at room temperature. An accurate determination of the reorganization energy requires averaging over conformation and a large region of the protein around the active site to be treated at the quantum mechanical level. © 2016 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Catherine A Hurd
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Nicholas A Besley
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - David Robinson
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
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16
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Martin-Diaconescu V, Chacón KN, Delgado-Jaime MU, Sokaras D, Weng TC, DeBeer S, Blackburn NJ. Kβ Valence to Core X-ray Emission Studies of Cu(I) Binding Proteins with Mixed Methionine - Histidine Coordination. Relevance to the Reactivity of the M- and H-sites of Peptidylglycine Monooxygenase. Inorg Chem 2016; 55:3431-9. [PMID: 26965786 PMCID: PMC4878823 DOI: 10.1021/acs.inorgchem.5b02842] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Biological systems use copper as a redox center in many metalloproteins, where the role of the metal is to cycle between its +1 and +2 oxidation states. This chemistry requires the redox potential to be in a range that can stabilize both Cu(I) and Cu(II) states and often involves protein-derived ligand sets involving mixed histidine-methionine coordination that balance the preferences of both oxidation states. Transport proteins, on the other hand, utilize copper in the Cu(I) state and often contain sites comprised predominately of the cuprophilic residue methionine. The electronic factors that allow enzymes and transporters to balance their redox requirements are complex and are often elusive due to the dearth of spectroscopic probes of the Cu(I) state. Here we present the novel application of X-ray emission spectroscopy to copper proteins via a study of a series of mixed His-Met copper sites where the ligand set varies in a systematic way between the His3 and Met3 limits. The sites are derived from the wild-type peptidylglycine monooxygenase (PHM), two single-site variants which replicate each of its two copper sites (CuM-site and CuH-site), and the transporters CusF and CusB. Clear differences are observed in the Kβ2,5 region at the Met3 and His3 limits. CusB (Met3) has a distinct peak at 8978.4 eV with a broad shoulder at 8975.6 eV, whereas CuH (His3) has two well-resolved features: a more intense feature at 8974.8 eV and a second at 8977.2 eV. The mixed coordination sphere CusF (Met2His) and the PHM CuM variant (Met1His2) have very similar spectra consisting of two features at 8975.2 and 8977.8 eV. An analysis of DFT calculated spectra indicate that the intensity of the higher energy peak near 8978 eV is mediated by mixing of ligand-based orbitals into the Cu d(10) manifold, with S from Met providing more intensity by facilitating increased Cu p-d mixing. Furthermore, reaction of WT PHM with CO (an oxygen analogue) produced the M site CO complex, which showed a unique XES spectrum that could be computationally reproduced by including interactions between Cu(I) and the CO ligand. The study suggests that the valence-to-core (VtC) region can not only serve as a probe of ligand speciation but also offer insight into the coordination geometry, in a fashion similar to XAS pre-edges, and may be sufficiently sensitive to the coordination of exogenous ligands to be useful in the study of reaction mechanisms.
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Affiliation(s)
- Vlad Martin-Diaconescu
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34 – 36, D-45470 Mülheim an der Ruhr, Mülheim an der Ruhr, Germany
| | - Kelly N. Chacón
- Institute of Environmental Health, Oregon Health & Sciences University, 3181 SW Sam Jackson Park Road, Portland, OR 97239
| | - Mario Ulises Delgado-Jaime
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34 – 36, D-45470 Mülheim an der Ruhr, Mülheim an der Ruhr, Germany
| | - Dimosthenis Sokaras
- Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Road, Menlo Park, CA 97025
| | - Tsu-Chien Weng
- Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Road, Menlo Park, CA 97025
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34 – 36, D-45470 Mülheim an der Ruhr, Mülheim an der Ruhr, Germany
- Cornell University, Department of Chemistry and Chemical Biology, Ithaca, New York, 14853, United States
| | - Ninian J. Blackburn
- Institute of Environmental Health, Oregon Health & Sciences University, 3181 SW Sam Jackson Park Road, Portland, OR 97239
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17
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Li CG, Yuan YQ, Hu YF, Zhang J, Tang YN, Ren BZ. Density functional theory study of the structures and electronic properties of copper and sulfur doped copper clusters. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.01.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Liu L, Duchanois T, Etienne T, Monari A, Beley M, Assfeld X, Haacke S, Gros PC. A new record excited state 3MLCT lifetime for metalorganic iron(ii) complexes. Phys Chem Chem Phys 2016; 18:12550-6. [DOI: 10.1039/c6cp01418f] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The 3MLCT lifetime of iron complexes was pushed to a record lifetime of 26 ps using a new benzimidazolylidene-based C∧N∧C ligand opening up new perspectives on the way of applying such complexes to photoelectrochemical processes.
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Affiliation(s)
- Li Liu
- IPCMS & Labex NIE
- Université de Strasbourg & CNRS
- 67034 Strasbourg Cedex
- France
| | - Thibaut Duchanois
- Université de Lorraine–Nancy & CNRS
- HecRIn
- SRSMC
- 54506 Vandoeuvre-Lès-Nancy
- France
| | - Thibaud Etienne
- Université de Lorraine–Nancy & CNRS
- TMS
- SRSMC
- 54506 Vandoeuvre-Lès-Nancy
- France
| | - Antonio Monari
- Université de Lorraine–Nancy & CNRS
- TMS
- SRSMC
- 54506 Vandoeuvre-Lès-Nancy
- France
| | - Marc Beley
- Université de Lorraine–Nancy & CNRS
- HecRIn
- SRSMC
- 54506 Vandoeuvre-Lès-Nancy
- France
| | - Xavier Assfeld
- Université de Lorraine–Nancy & CNRS
- TMS
- SRSMC
- 54506 Vandoeuvre-Lès-Nancy
- France
| | - Stefan Haacke
- IPCMS & Labex NIE
- Université de Strasbourg & CNRS
- 67034 Strasbourg Cedex
- France
| | - Philippe C. Gros
- Université de Lorraine–Nancy & CNRS
- HecRIn
- SRSMC
- 54506 Vandoeuvre-Lès-Nancy
- France
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19
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Etienne T. Transition matrices and orbitals from reduced density matrix theory. J Chem Phys 2015; 142:244103. [PMID: 26133406 DOI: 10.1063/1.4922780] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this contribution, we report two different methodologies for characterizing the electronic structure reorganization occurring when a chromophore undergoes an electronic transition. For the first method, we start by setting the theoretical background necessary to the reinterpretation through simple tensor analysis of (i) the transition density matrix and (ii) the natural transition orbitals in the scope of reduced density matrix theory. This novel interpretation is made more clear thanks to a short compendium of the one-particle reduced density matrix theory in a Fock space. The formalism is further applied to two different classes of excited states calculation methods, both requiring a single-determinant reference, that express an excited state as a hole-particle mono-excited configurations expansion, to which particle-hole correlation is coupled (time-dependent Hartree-Fock/time-dependent density functional theory) or not (configuration interaction single/Tamm-Dancoff approximation). For the second methodology presented in this paper, we introduce a novel and complementary concept related to electronic transitions with the canonical transition density matrix and the canonical transition orbitals. Their expression actually reflects the electronic cloud polarisation in the orbital space with a decomposition based on the actual contribution of one-particle excitations from occupied canonical orbitals to virtual ones. This approach validates our novel interpretation of the transition density matrix elements in terms of the Euclidean norm of elementary transition vectors in a linear tensor space. A proper use of these new concepts leads to the conclusion that despite the different principles underlying their construction, they provide two equivalent excited states topological analyses. This connexion is evidenced through simple illustrations of (in)organic dyes electronic transitions analysis.
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Affiliation(s)
- Thibaud Etienne
- Université de Lorraine - Nancy, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes 54506, Vandoeuvre-lès-Nancy, France; CNRS, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes 54506, Vandoeuvre-lès-Nancy, France; and Unité de Chimie Physique Théorique et Structurale, Université de Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
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20
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Laurent AD, Adamo C, Jacquemin D. Dye chemistry with time-dependent density functional theory. Phys Chem Chem Phys 2015; 16:14334-56. [PMID: 24548975 DOI: 10.1039/c3cp55336a] [Citation(s) in RCA: 233] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this perspective, we present an overview of the determination of excited-state properties of "real-life" dyes, and notably of their optical absorption and emission spectra, performed during the last decade with time-dependent density functional theory (TD-DFT). We discuss the results obtained with both vertical and adiabatic (vibronic) approximations, choosing relevant examples for several series of dyes. These examples include reproducing absorption wavelengths of numerous families of coloured molecules, understanding the specific band shape of amino-anthraquinones, optimising the properties of dyes used in solar cells, mimicking the fluorescence wavelengths of fluorescent brighteners and BODIPY dyes, studying optically active biomolecules and photo-induced proton transfer, as well as improving the properties of photochromes.
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Affiliation(s)
- Adèle D Laurent
- Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS no. 6230, BP 92208, Université de Nantes, 2, Rue de la Houssinière, 44322 Nantes, Cedex 3, France.
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21
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Duchanois T, Etienne T, Cebrián C, Liu L, Monari A, Beley M, Assfeld X, Haacke S, Gros PC. An Iron-Based Photosensitizer with Extended Excited-State Lifetime: Photophysical and Photovoltaic Properties. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500142] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Etienne T. Probing the Locality of Excited States with Linear Algebra. J Chem Theory Comput 2015; 11:1692-9. [DOI: 10.1021/ct501163b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Thibaud Etienne
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, , Université de Lorraine—Nancy, Boulevard des Aiguillettes 54506, Vandoeuvre-lès-Nancy, France
- Unité de Chimie Physique
Théorique et Structurale, Université de Namur, Rue de Bruxelles
61, 5000 Namur, Belgium
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23
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Rivail JL, Monari A, Assfeld X. The Non Empirical Local Self Consistent Field Method: Application to Quantum Mechanics/Molecular Mechanics (QM/MM) Modeling of Large Biomolecular Systems. CHALLENGES AND ADVANCES IN COMPUTATIONAL CHEMISTRY AND PHYSICS 2015. [DOI: 10.1007/978-3-319-21626-3_13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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24
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Sharmoukh W, Attanzio A, Busatto E, Etienne T, Carli S, Monari A, Assfeld X, Beley M, Caramori S, Gros PC. 2,5-Dithienylpyrrole (DTP) as a donor component in DTP–π–A organic sensitizers: photophysical and photovoltaic properties. RSC Adv 2015. [DOI: 10.1039/c4ra10342d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
DTP–π–A organic dyes efficiently sensitized TiO2 in DSSCs exhibiting nearly quantitative charge injection yields and regeneration efficiency.
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Affiliation(s)
| | - Antonio Attanzio
- Department of Chemical and Pharmaceutical Sciences
- University of Ferrara
- Ferrara
- Italy
| | - Eva Busatto
- Department of Chemical and Pharmaceutical Sciences
- University of Ferrara
- Ferrara
- Italy
| | | | - Stefano Carli
- Department of Chemical and Pharmaceutical Sciences
- University of Ferrara
- Ferrara
- Italy
| | | | | | - Marc Beley
- Photosens
- Université de Lorraine
- UMR SRSMC
- Nancy
- France
| | - Stefano Caramori
- Department of Chemical and Pharmaceutical Sciences
- University of Ferrara
- Ferrara
- Italy
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25
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Etienne T, Assfeld X, Monari A. New Insight into the Topology of Excited States through Detachment/Attachment Density Matrices-Based Centroids of Charge. J Chem Theory Comput 2014; 10:3906-14. [DOI: 10.1021/ct500400s] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Thibaud Etienne
- Université de Lorraine − Nancy, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- Unité
de Chimie Physique Théorique et Structurale, Université de Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Xavier Assfeld
- Université de Lorraine − Nancy, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Antonio Monari
- Université de Lorraine − Nancy, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
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26
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Etienne T, Assfeld X, Monari A. Toward a Quantitative Assessment of Electronic Transitions’ Charge-Transfer Character. J Chem Theory Comput 2014; 10:3896-905. [DOI: 10.1021/ct5003994] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Thibaud Etienne
- Université de Lorraine − Nancy, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- Unité
de Chimie Physique Théorique et Structurale, Université de Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Xavier Assfeld
- Université de Lorraine − Nancy, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Antonio Monari
- Université de Lorraine − Nancy, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie-Modélisation-Simulation,
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
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27
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Duchanois T, Etienne T, Beley M, Assfeld X, Perpète EA, Monari A, Gros PC. Heteroleptic Pyridyl-Carbene Iron Complexes with Tuneable Electronic Properties. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402356] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Etienne T, Assfeld X, Monari A. QM/MM calculation of absorption spectra of complex systems: The case of human serum albumin. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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QM/MM modeling of Harmane cation fluorescence spectrum in water solution and interacting with DNA. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.03.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Beley M, Gros PC. Ruthenium Polypyridine Complexes Bearing Pyrroles and π-Extended Analogues. Synthesis, Spectroelectronic, Electrochemical, and Photovoltaic Properties. Organometallics 2014. [DOI: 10.1021/om5002183] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Marc Beley
- Université de Lorraine, SRSMC UMR7565, Photosens, F-54506 Vandoeuvre-Lès-Nancy, France
- CNRS, SRSMC UMR7565, Photosens, F-54506 Vandoeuvre-Lès-Nancy, France
| | - Philippe C. Gros
- Université de Lorraine, SRSMC UMR7565, Photosens, F-54506 Vandoeuvre-Lès-Nancy, France
- CNRS, SRSMC UMR7565, Photosens, F-54506 Vandoeuvre-Lès-Nancy, France
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31
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Nakata H, Fedorov DG, Yokojima S, Kitaura K, Sakurai M, Nakamura S. Unrestricted density functional theory based on the fragment molecular orbital method for the ground and excited state calculations of large systems. J Chem Phys 2014; 140:144101. [DOI: 10.1063/1.4870261] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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32
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UV–vis absorption spectrum of a novel Ru(II) complex intercalated in DNA: [Ru(2,2′-bipy)(dppz)(2,2′-ArPy)]+. J Mol Model 2014; 20:2082. [DOI: 10.1007/s00894-014-2082-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 10/09/2013] [Indexed: 12/26/2022]
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33
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Pedersen MN, Hedegård ED, Olsen JMH, Kauczor J, Norman P, Kongsted J. Damped Response Theory in Combination with Polarizable Environments: The Polarizable Embedding Complex Polarization Propagator Method. J Chem Theory Comput 2014; 10:1164-71. [DOI: 10.1021/ct400946k] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Morten N. Pedersen
- Department
of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense M, Denmark
- Department
of Physics, Chemistry and Biology, Linköping University, Linköping SE-58183, Sweden
| | - Erik D. Hedegård
- Department
of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Jógvan Magnus H. Olsen
- Department
of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Joanna Kauczor
- Department
of Physics, Chemistry and Biology, Linköping University, Linköping SE-58183, Sweden
| | - Patrick Norman
- Department
of Physics, Chemistry and Biology, Linköping University, Linköping SE-58183, Sweden
| | - Jacob Kongsted
- Department
of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense M, Denmark
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34
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Vieuxmaire OPJ, Piau RE, Alary F, Heully JL, Sutra P, Igau A, Boggio-Pasqua M. Theoretical Investigation of Phosphinidene Oxide Polypyridine Ruthenium(II) Complexes: Toward the Design of a New Class of Photochromic Compounds. J Phys Chem A 2013; 117:12821-30. [DOI: 10.1021/jp408898n] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Olivier P. J. Vieuxmaire
- Laboratoire
de Chimie et Physique Quantiques—IRSAMC, CNRS et Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Rémi E. Piau
- Laboratoire
de Chimie et Physique Quantiques—IRSAMC, CNRS et Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Fabienne Alary
- Laboratoire
de Chimie et Physique Quantiques—IRSAMC, CNRS et Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Jean-Louis Heully
- Laboratoire
de Chimie et Physique Quantiques—IRSAMC, CNRS et Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Pierre Sutra
- LCC
(Laboratoire de Chimie de Coordination), CNRS, 205 route de
Narbonne, F-31077 Toulouse, France
- UPS, INPT, LCC, Université de Toulouse, F-31062 Toulouse, France
| | - Alain Igau
- LCC
(Laboratoire de Chimie de Coordination), CNRS, 205 route de
Narbonne, F-31077 Toulouse, France
- UPS, INPT, LCC, Université de Toulouse, F-31062 Toulouse, France
| | - Martial Boggio-Pasqua
- Laboratoire
de Chimie et Physique Quantiques—IRSAMC, CNRS et Université de Toulouse, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
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35
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Chantzis A, Very T, Daniel C, Monari A, Assfeld X. Theoretical evidence of photo-induced charge transfer from DNA to intercalated ruthenium (II) organometallic complexes. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.05.068] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Le Guennic B, Chibani S, Charaf-Eddin A, Massue J, Ziessel R, Ulrich G, Jacquemin D. The NBO pattern in luminescent chromophores: unravelling excited-state features using TD-DFT. Phys Chem Chem Phys 2013; 15:7534-40. [DOI: 10.1039/c3cp50669j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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38
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Zanna N, Monari A, Assfeld X. Theoretical Study of the Absorption Spectrum of a Photoisomerizable Iron Complex. J Phys Chem A 2012; 116:11905-12. [DOI: 10.1021/jp310171r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Nicola Zanna
- Dipartimento di Chimica Organica
A. Mangini, Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Antonio Monari
- Université de Lorraine Nancy, Théorie Modélisation
Simulations, Photosens Laboratoire SRSMC, Boulevard des Aiguillettes,
54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie Modélisation
Simulations, Photosens Laboratoire
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy,
France
| | - Xavier Assfeld
- Université de Lorraine Nancy, Théorie Modélisation
Simulations, Photosens Laboratoire SRSMC, Boulevard des Aiguillettes,
54506 Vandoeuvre-lès-Nancy, France
- CNRS, Théorie Modélisation
Simulations, Photosens Laboratoire
SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy,
France
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39
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Lachaud F, Jeandon C, Beley M, Ruppert R, Gros PC, Monari A, Assfeld X. Ground and Excited State Properties of New Porphyrin Based Dyads: A Combined Theoretical and Experimental Study. J Phys Chem A 2012; 116:10736-44. [DOI: 10.1021/jp307452d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Christophe Jeandon
- Laboratoire CLAC, UMR 7177 du
CNRS, Université de Strasbourg,
1 rue Blaise Pascal, BP 296 R8, 67008 Strasbourg Cedex, France
| | | | - Romain Ruppert
- Laboratoire CLAC, UMR 7177 du
CNRS, Université de Strasbourg,
1 rue Blaise Pascal, BP 296 R8, 67008 Strasbourg Cedex, France
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40
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Monari A, Very T, Rivail JL, Assfeld X. Effects of mutations on the absorption spectra of copper proteins: a QM/MM study. Theor Chem Acc 2012. [DOI: 10.1007/s00214-012-1221-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Godefroid G, Juanjuan S, Xiaochun Q, Yuqi L, Yanling S, Xiaohong S, Zhijian W. Shedding light on unusual photophysical properties of bis-cyclometalated iridium(iii) complexes containing 2,5-diaryl-1,3,4-oxadiazole-based and acetylacetonate ligands. Dalton Trans 2012; 41:10228-37. [DOI: 10.1039/c2dt30792h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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42
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Piau RE, Guillon T, Lebon E, Perrot N, Alary F, Boggio-Pasqua M, Heully JL, Juris A, Sutra P, Igau A. Photophysical and electrochemical properties of polypyridine imine ruthenium(ii) complexes: a comparative experimental and theoretical study. NEW J CHEM 2012. [DOI: 10.1039/c2nj40353f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Very T, Despax S, Hébraud P, Monari A, Assfeld X. Spectral properties of polypyridyl ruthenium complexes intercalated in DNA: theoretical insights into the surrounding effects of [Ru(dppz)(bpy)2]2+. Phys Chem Chem Phys 2012; 14:12496-504. [DOI: 10.1039/c2cp40935f] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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44
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Lachaud F, Jeandon C, Monari A, Assfeld X, Beley M, Ruppert R, Gros PC. New dyads using (metallo)porphyrins as ancillary ligands in polypyridine ruthenium complexes. Synthesis and electronic properties. Dalton Trans 2012; 41:12865-71. [DOI: 10.1039/c2dt31656k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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