1
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Jaiswal VK, Taddei M, Nascimento DR, Garavelli M, Conti I, Nenov A. Reconciling TD-DFT and CASPT2 electronic structure methods for describing the photophysics of DNA. Photochem Photobiol 2024; 100:443-452. [PMID: 38356286 DOI: 10.1111/php.13922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/17/2024] [Accepted: 01/26/2024] [Indexed: 02/16/2024]
Abstract
Time-dependent density functional theory (TD-DFT) and multiconfigurational second-order perturbation theory (CASPT2) are two of the most widely used methods to investigate photoinduced dynamics in DNA-based systems. These methods sometimes give diverse dynamics in physiological environments usually modeled by quantum mechanics/molecular mechanics (QM/MM) protocol. In this work, we demonstrate for the uridine test case that the underlying topology of the potential energy surfaces of electronic states involved in photoinduced relaxation is similar in both electronic structure methods. This is verified by analyzing surface-hopping dynamics performed at the QM/MM level on aqueous solvated uridine at TD-DFT and CASPT2 levels. By constraining the dynamics to remain onπ π * state we observe similar fluctuations in energy and relaxation lifetimes in surface-hopping dynamics in both TD-DFT and experimentally validated CASPT2 methods. This finding calls for a systematic comparison of the ES potential energy surfaces of DNA and RNA nucleosides at the single- and multi-reference levels of theory. The anomalous long excited state lifetime at the TD-DFT level is explained byn π * trapping due to the tendency of TD-DFT in QM/MM schemes with electrostatic embedding to underestimate the energy of theπ π * state leading to a wrongπ π * / n π * energetic order. A study of the FC energetics suggests that improving the description of the surrounding environment through polarizable embedding or by the expansion of QM layer with hydrogen-bonded waters helps restore the correct state order at TD-DFT level. Thus by combining TDDFT with an accurate modeling of the environment, TD-DFT is positioned as the standout protocol to model photoinduced dynamics in DNA-based aggregates and multimers.
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Affiliation(s)
- Vishal Kumar Jaiswal
- Dipartimento di Chimica Industriale, Università degli Studi di Bologna, Bologna, Italy
| | - Mario Taddei
- Dipartimento di Chimica Industriale, Università degli Studi di Bologna, Bologna, Italy
| | | | - Marco Garavelli
- Dipartimento di Chimica Industriale, Università degli Studi di Bologna, Bologna, Italy
| | - Irene Conti
- Dipartimento di Chimica Industriale, Università degli Studi di Bologna, Bologna, Italy
| | - Artur Nenov
- Dipartimento di Chimica Industriale, Università degli Studi di Bologna, Bologna, Italy
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2
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Slipchenko LV. Detangling Solvatochromic Effects by the Effective Fragment Potential Method. J Phys Chem A 2024; 128:656-669. [PMID: 38193780 DOI: 10.1021/acs.jpca.3c06194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Understanding molecular interactions in complex systems opens avenues for the efficient design of new materials with target properties. Energy decomposition methods provide a means to obtain a detailed picture of intermolecular interactions. This work introduces a molecular modeling approach for decomposing the solvatochromic shifts of the electronic excited states into the contributions of the individual molecular fragments of the environment surrounding the chromophore. The developed approach is implemented for the QM/EFP (quantum mechanics/effective fragment potential) model that provides a rigorous first-principles-based description of the electronic states of the chromophores in complex polarizable environments. On the example of two model systems, water pentamer and hydrated uracil, we show how the decomposition of the solvatochromic shifts into the contributions of individual solvent water molecules provides a detailed picture of the intermolecular interactions in the ground and excited states of these systems. The analysis also demonstrates the nonadditivity of solute-solvent interactions and the significant contribution of solute polarization to the total values of solvatochromic shifts.
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Affiliation(s)
- Lyudmila V Slipchenko
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47906, United States
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3
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Bezabih MS, Kaliakin DS, Blanco-González A, Barneschi L, Tarnovsky AN, Olivucci M. Comparative Study of Uracil Excited-State Photophysics in Water and Acetonitrile via RMS-CASPT2-Driven Quantum-Classical Trajectories. J Phys Chem B 2023; 127:10871-10879. [PMID: 38055701 DOI: 10.1021/acs.jpcb.3c06433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
We present a nonadiabatic molecular dynamics study of the ultrafast processes occurring in uracil upon UV light absorption, leading to electronic excitation and subsequent nonradiative decay. Previous studies have indicated that the mechanistic details of this process are drastically different depending on whether the process takes place in the gas phase, acetonitrile, or water. However, such results have been produced using quantum chemical methods that did not incorporate both static and dynamic electron correlation. In order to assess the previously proposed mechanisms, we simulate the photodynamics of uracil in the three environments mentioned above using quantum-classical trajectories and, for solvated uracil, hybrid quantum mechanics/molecular mechanics (QM/MM) models driven by the rotated multistate complete active space second-order perturbation (RMS-CASPT2) method. To do so, we exploit the gradient recently made available in OpenMolcas and compare the results to those obtained using the complete active space self-consistent field (CASSCF) method only accounting for static electron correlation. We show that RMS-CASPT2 produces, in general, a mechanistic picture different from the one obtained at the CASSCF level but confirms the hypothesis advanced on the basis of previous ROKS and TDDFT studies thus highlighting the importance of incorporating dynamic electron correlation in the investigation of ultrafast electronic deactivation processes.
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Affiliation(s)
- Meseret Simachew Bezabih
- Department of Chemistry, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Danil S Kaliakin
- Department of Chemistry, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | | | - Leonardo Barneschi
- Dipartimento di Biotechnologie, Chimica e Farmacia, Università di Siena, I-53100 Siena, Italy
| | - Alexander N Tarnovsky
- Department of Chemistry, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Massimo Olivucci
- Department of Chemistry, Bowling Green State University, Bowling Green, Ohio 43403, United States
- Dipartimento di Biotechnologie, Chimica e Farmacia, Università di Siena, I-53100 Siena, Italy
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4
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Ortín-Fernández J, González-Vázquez J, Martínez-Fernández L, Corral I. Molecular Identification of the Transient Species Mediating the Deactivation Dynamics of Solvated Guanosine and Deazaguanosine. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030989. [PMID: 35164254 PMCID: PMC8839017 DOI: 10.3390/molecules27030989] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 11/16/2022]
Abstract
Small structural alterations of the purine/pyrimidine core have been related to important photophysical changes, such as the loss of photostability. Similarly to canonical nucleobases, solute-solvent interactions can lead to a change in the excited state lifetimes and/or to the interplay of different states in the photophysics of these modified nucleobases. To shed light on both effects, we here report a complete picture of the absorption spectra and excited state deactivation of deoxyguanosine and its closely related derivative, deoxydeazaguanosine, in water and methanol through the mapping of the excited state potential energy surfaces and molecular dynamics simulations at the TD-DFT level of theory. We show that the N by CH exchange in the imidazole ring of deoxyguanosine translates into a small red-shift of the bright states and slightly faster dynamics. In contrast, changing solvent from water to methanol implies the opposite, i.e., that the deactivation of both systems to the ground state is significantly hindered.
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Affiliation(s)
- Javier Ortín-Fernández
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (J.O.-F.); (J.G.-V.)
| | - Jesús González-Vázquez
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (J.O.-F.); (J.G.-V.)
- Institute for Advanced Research in Chemistry (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Lara Martínez-Fernández
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (J.O.-F.); (J.G.-V.)
- Institute for Advanced Research in Chemistry (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Correspondence: (L.M.-F.); (I.C.)
| | - Inés Corral
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (J.O.-F.); (J.G.-V.)
- Institute for Advanced Research in Chemistry (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Correspondence: (L.M.-F.); (I.C.)
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5
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Barca GMJ, Bertoni C, Carrington L, Datta D, De Silva N, Deustua JE, Fedorov DG, Gour JR, Gunina AO, Guidez E, Harville T, Irle S, Ivanic J, Kowalski K, Leang SS, Li H, Li W, Lutz JJ, Magoulas I, Mato J, Mironov V, Nakata H, Pham BQ, Piecuch P, Poole D, Pruitt SR, Rendell AP, Roskop LB, Ruedenberg K, Sattasathuchana T, Schmidt MW, Shen J, Slipchenko L, Sosonkina M, Sundriyal V, Tiwari A, Galvez Vallejo JL, Westheimer B, Włoch M, Xu P, Zahariev F, Gordon MS. Recent developments in the general atomic and molecular electronic structure system. J Chem Phys 2020; 152:154102. [PMID: 32321259 DOI: 10.1063/5.0005188] [Citation(s) in RCA: 506] [Impact Index Per Article: 126.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A discussion of many of the recently implemented features of GAMESS (General Atomic and Molecular Electronic Structure System) and LibCChem (the C++ CPU/GPU library associated with GAMESS) is presented. These features include fragmentation methods such as the fragment molecular orbital, effective fragment potential and effective fragment molecular orbital methods, hybrid MPI/OpenMP approaches to Hartree-Fock, and resolution of the identity second order perturbation theory. Many new coupled cluster theory methods have been implemented in GAMESS, as have multiple levels of density functional/tight binding theory. The role of accelerators, especially graphical processing units, is discussed in the context of the new features of LibCChem, as it is the associated problem of power consumption as the power of computers increases dramatically. The process by which a complex program suite such as GAMESS is maintained and developed is considered. Future developments are briefly summarized.
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Affiliation(s)
- Giuseppe M J Barca
- Research School of Computer Science, Australian National University, Canberra, ACT 2601, Australia
| | - Colleen Bertoni
- Argonne Leadership Computing Facility, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Laura Carrington
- EP Analytics, 12121 Scripps Summit Dr. Ste. 130, San Diego, California 92131, USA
| | - Dipayan Datta
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Nuwan De Silva
- Department of Physical and Biological Sciences, Western New England University, Springfield, Massachusetts 01119, USA
| | - J Emiliano Deustua
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - Dmitri G Fedorov
- Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba 305-8568, Japan
| | - Jeffrey R Gour
- Microsoft, 15590 NE 31st St., Redmond, Washington 98052, USA
| | - Anastasia O Gunina
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Emilie Guidez
- Department of Chemistry, University of Colorado Denver, Denver, Colorado 80217, USA
| | - Taylor Harville
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Stephan Irle
- Computational Science and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - Joe Ivanic
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, USA
| | - Karol Kowalski
- Physical Sciences Division, Battelle, Pacific Northwest National Laboratory, K8-91, P.O. Box 999, Richland, Washington 99352, USA
| | - Sarom S Leang
- EP Analytics, 12121 Scripps Summit Dr. Ste. 130, San Diego, California 92131, USA
| | - Hui Li
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, USA
| | - Wei Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing 210023, People's Republic of China
| | - Jesse J Lutz
- Center for Computing Research, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - Ilias Magoulas
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - Joani Mato
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Vladimir Mironov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119991, Russian Federation
| | - Hiroya Nakata
- Kyocera Corporation, Research Institute for Advanced Materials and Devices, 3-5-3 Hikaridai Seika-cho, Souraku-gun, Kyoto 619-0237, Japan
| | - Buu Q Pham
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Piotr Piecuch
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - David Poole
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Spencer R Pruitt
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Alistair P Rendell
- Research School of Computer Science, Australian National University, Canberra, ACT 2601, Australia
| | - Luke B Roskop
- Cray Inc., a Hewlett Packard Enterprise Company, 2131 Lindau Ln #1000, Bloomington, Minnesota 55425, USA
| | - Klaus Ruedenberg
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | | | - Michael W Schmidt
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Jun Shen
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - Lyudmila Slipchenko
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | - Masha Sosonkina
- Department of Computational Modeling and Simulation Engineering, Old Dominion University, Norfolk, Virginia 23529, USA
| | - Vaibhav Sundriyal
- Department of Computational Modeling and Simulation Engineering, Old Dominion University, Norfolk, Virginia 23529, USA
| | - Ananta Tiwari
- EP Analytics, 12121 Scripps Summit Dr. Ste. 130, San Diego, California 92131, USA
| | - Jorge L Galvez Vallejo
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Bryce Westheimer
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Marta Włoch
- 530 Charlesina Dr., Rochester, Michigan 48306, USA
| | - Peng Xu
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Federico Zahariev
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Mark S Gordon
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
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6
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Lu SI. Discrete Solvent Reaction Field Calculations for One- and Two-Photon Absorptions of Solution-Phase Dimethylaminonitrostilbene Molecule. J Phys Chem A 2019; 123:5334-5340. [PMID: 31242735 DOI: 10.1021/acs.jpca.9b04041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Based on the configurations generated by molecular dynamics (MD) simulations using the on-the-fly density-functional tight-bonding (DFTB) force field, we investigated performance of the discrete solvent reaction field (DRF) model coupled to time-dependent density functional theory (TD-DFT) for solvatochromic effect of one- and two-photon absorption phenomena. Dimethylaminonitrostilbene (DANS) molecule solvated in chloroform, dichloromethane, and dimethyl sulfoxide solvents was selected as a model system for our research purpose. For every selected MD/DFTB configuration, within the context of the DRF, solute molecule is represented by TD-DFT and solvent molecules are described by atomic charges and polarizabilities. The calculated one-photon absorption energies reproduce well the positive solvatochromic behavior of solvated DANS and are in good agreement with available experimental data. For the two-photon absorption cross section, even though our approach overshot the experimental data by about 20% in absolute magnitude, experimentally observed solvatochromic change was captured qualitatively in this work. At last, we examined the contributions of atomic charges and polarizabilities of solvent molecules to the solvatochromic shifts of properties of interest.
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Affiliation(s)
- Shih-I Lu
- Department of Chemistry Soochow University No. 70 Lin-Shih Road , Taipei City , 111 , Taiwan
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7
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Fu F, Liao K, Ma J, Cheng Z, Zheng D, Gao L, Liu C, Li S, Li W. How intermolecular interactions influence electronic absorption spectra: insights from the molecular packing of uracil in condensed phases. Phys Chem Chem Phys 2019; 21:4072-4081. [DOI: 10.1039/c8cp06152a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Intermolecular interactions in terms of molecular packing are crucial for the investigation of the absorption spectra of uracil in different environments.
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Affiliation(s)
- Fangjia Fu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Kang Liao
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Jing Ma
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Zheng Cheng
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Dong Zheng
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Liuzhou Gao
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Chungen Liu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Shuhua Li
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
| | - Wei Li
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education
- Institute of Theoretical and Computational Chemistry
- Nanjing University
- Nanjing
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8
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De Silva N, Adreance MA, Gordon MS. Application of a semi‐empirical dispersion correction for modeling water clusters. J Comput Chem 2018; 40:310-315. [DOI: 10.1002/jcc.25596] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/17/2018] [Accepted: 08/20/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Nuwan De Silva
- Department of Physical and Biological Sciences Western New England University Springfield Massachusetts 01119
| | - Matthew A. Adreance
- Department of Physical and Biological Sciences Western New England University Springfield Massachusetts 01119
| | - Mark S. Gordon
- Department of Chemistry Iowa State University Ames Iowa 50011
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9
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Viquez Rojas CI, Fine J, Slipchenko LV. Exchange-repulsion energy in QM/EFP. J Chem Phys 2018; 149:094103. [PMID: 30195305 DOI: 10.1063/1.5043107] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The effective fragment potential (EFP) is a quantum mechanics (QM)-based model designed to accurately describe intermolecular interactions. Hybrid QM/EFP calculations combine quantum mechanical methods with an EFP embedding to study complex systems in which many-body effects are relevant. As in EFP-only calculations, non-bonded interactions between the QM region and EFP fragments are computed as a sum of electrostatic, polarization, dispersion, and exchange-repulsion energies. The exchange-repulsion term is a computational bottleneck of the EFP calculations. Here, we present a general procedure for computing the QM/EFP exchange-repulsion interactions based on one-electron contributions to the QM Hamiltonian, by using Gaussian functions to represent localized molecular orbitals of the effective fragments. The accuracy of the exchange-repulsion and total QM/EFP interaction energies is evaluated on a diverse set of dimers, including complexes from the S22 dataset of non-covalent interactions. In most cases, the QM/EFP energies are at least as accurate as corresponding EFP energies. A simple and computationally efficient form of the introduced QM/EFP exchange-repulsion term will facilitate further developments and applications of QM/EFP methods.
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Affiliation(s)
| | - Jonathan Fine
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
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10
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Kowalewski M, Fingerhut BP, Dorfman KE, Bennett K, Mukamel S. Simulating Coherent Multidimensional Spectroscopy of Nonadiabatic Molecular Processes: From the Infrared to the X-ray Regime. Chem Rev 2017; 117:12165-12226. [DOI: 10.1021/acs.chemrev.7b00081] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Markus Kowalewski
- Department
of Chemistry and Department of Physics and Astronomy, University of California, Irvine, California 92697-2025, United States
| | - Benjamin P. Fingerhut
- Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, D-12489 Berlin, Germany
| | - Konstantin E. Dorfman
- State
Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
| | - Kochise Bennett
- Department
of Chemistry and Department of Physics and Astronomy, University of California, Irvine, California 92697-2025, United States
| | - Shaul Mukamel
- Department
of Chemistry and Department of Physics and Astronomy, University of California, Irvine, California 92697-2025, United States
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11
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Dubinets N, Slipchenko LV. Effective Fragment Potential Method for H-Bonding: How To Obtain Parameters for Nonrigid Fragments. J Phys Chem A 2017; 121:5301-5312. [DOI: 10.1021/acs.jpca.7b01701] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nikita Dubinets
- Department
of Condensed Matter Physics, National Research Nuclear University “MEPhI”, 31 Kashirskoe Highway, Moscow, 115409, Russia
- Federal Research
Center “Crystallography and Photonics”, Photochemistry
Center RAS, 7a Novatorov Str., Moscow, 119421, Russia
| | - Lyudmila V. Slipchenko
- Department
of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
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12
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Micciarelli M, Curchod BFE, Bonella S, Altucci C, Valadan M, Rothlisberger U, Tavernelli I. Characterization of the Photochemical Properties of 5-Benzyluracil via Time-Dependent Density Functional Theory. J Phys Chem A 2017; 121:3909-3917. [PMID: 28467074 DOI: 10.1021/acs.jpca.6b12799] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We present a detailed study of the excited state properties of 5-benzyluracil (5BU) in the gas phase and in implicit solvent using different electronic structure approaches ranging from time-dependent density functional theory in the linear response regime (LR-TDDFT) to a set of different wave-function-based methods for excited states, namely perturbed coupled cluster (CC2), algebraic diagrammatic construction method to second order (ADC(2)), and perturbed configuration interaction (CIS(D)). 5BU has been used to investigate DNA base-amino acid interactions. In particular, it served as a model of protein-DNA photoinduced cross-linking. While LR-TDDFT is computationally the most efficient first-principles approach for static and dynamic simulations of this bichromophoric system, its accuracy is difficult to assess due to the presence of excited states with charge transfer character. In this work, the performance of different exchange correlation functionals is compared against accurate benchmarks obtained either from high level wave-function-based methods or directly from experimental absorption spectra. Our investigation shows that accurate results for the excitation energies can be obtained using the hybrid meta-GGA functional M06. In view of dynamical studies of the relaxation of 5BU after photoexcitation, we also show that the PBE functional, while failing in the Franck-Condon region, provides qualitatively good results for the characterisation of a possible photocyclization path.
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Affiliation(s)
- M Micciarelli
- Department of Physics, University of Rome "La Sapienza" , Ple A. Moro 5, 00185 Rome, Italy
| | | | | | - C Altucci
- Department of Physics, University of Naples "Federico II" , Via Cintia, 26-80126 Napoli, Italy
| | - M Valadan
- Department of Physics, University of Naples "Federico II" , Via Cintia, 26-80126 Napoli, Italy
| | | | - I Tavernelli
- Zurich Research Laboratory, IBM Research GmbH , 8803 Rüschlikon, Switzerland
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13
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Effects of hydrogen bonding with H2O on the resonance Raman spectra of uracil and thymine. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2016.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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15
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Coy SL, Grimes DD, Zhou Y, Field RW, Wong BM. Electric potential invariants and ions-in-molecules effective potentials for molecular Rydberg states. J Chem Phys 2016; 145:234301. [DOI: 10.1063/1.4968228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Stephen L. Coy
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachussetts 02139, USA
| | - David D. Grimes
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachussetts 02139, USA
| | - Yan Zhou
- JILA, University of Colorado Boulder, 440 University Ave., Boulder, Colorado 80302, USA
| | - Robert W. Field
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachussetts 02139, USA
| | - Bryan M. Wong
- Department of Chemical and Environmental Engineering and Materials Science & Engineering Program, University of California, Riverside, California 92521, USA
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16
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Rinkevicius Z, Sandberg JAR, Li X, Linares M, Norman P, Ågren H. Hybrid Complex Polarization Propagator/Molecular Mechanics Method for Heterogeneous Environments. J Chem Theory Comput 2016; 12:2661-7. [DOI: 10.1021/acs.jctc.6b00255] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zilvinas Rinkevicius
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
- Swedish
e-Science Research Centre, KTH Royal Institute of Technology, SE-104 50 Stockholm, Sweden
| | - Jaime A. R. Sandberg
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
| | - Xin Li
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
| | - Mathieu Linares
- Department
of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
- Swedish
e-Science Research Centre, Linköping University, SE-581 83 Linköping, Sweden
| | - Patrick Norman
- Department
of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | - Hans Ågren
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
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17
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Tan SYS, Izgorodina EI. Comparison of the Effective Fragment Potential Method with Symmetry-Adapted Perturbation Theory in the Calculation of Intermolecular Energies for Ionic Liquids. J Chem Theory Comput 2016; 12:2553-68. [DOI: 10.1021/acs.jctc.6b00141] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Samuel Y. S. Tan
- School of Chemistry, Monash University, 17 Rainforest
Walk, Clayton, Victoria 3800, Australia
| | - Ekaterina I. Izgorodina
- School of Chemistry, Monash University, 17 Rainforest
Walk, Clayton, Victoria 3800, Australia
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18
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Improta R, Santoro F, Blancafort L. Quantum Mechanical Studies on the Photophysics and the Photochemistry of Nucleic Acids and Nucleobases. Chem Rev 2016; 116:3540-93. [PMID: 26928320 DOI: 10.1021/acs.chemrev.5b00444] [Citation(s) in RCA: 338] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The photophysics and photochemistry of DNA is of great importance due to the potential damage of the genetic code by UV light. Quantum mechanical studies have played a key role in interpretating the results of modern time-resolved pump-probe spectroscopy, and in elucidating the main photoactivated reactive paths. This review provides a concise, complete picture of the computational studies carried out, approximately, in the past decade. We start with an overview of the photophysics of the nucleobases in the gas phase and in solution. We discuss the proposed mechanisms for ultrafast decay to the ground state, that involve conical intersections, consider the role of triplet states, and analyze how the solvent modulates the photophysics. Then we move to larger systems, from dinucleotides to single- and double-stranded oligonucleotides. We focus on the possible role of charge transfer and delocalized or excitonic states in the photophysics of these systems and discuss the main photochemical paths. We finish with an outlook on the current challenges in the field and future directions of research.
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Affiliation(s)
- Roberto Improta
- Istituto di Biostrutture Biommagini (IBB-CNR), CNR-Consiglio Nazionale delle Ricerche , Via Mezzocannone 16, I-80134, Napoli, Italy
| | - Fabrizio Santoro
- Area della Ricerca di Pisa, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), CNR-Consiglio Nazionale delle Ricerche , Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Lluís Blancafort
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus de Montilivi , 17071 Girona, Spain
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19
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Matthews E, Sen A, Yoshikawa N, Bergström E, Dessent CEH. UV laser photoactivation of hexachloroplatinate bound to individual nucleobases in vacuo as molecular level probes of a model photopharmaceutical. Phys Chem Chem Phys 2016; 18:15143-52. [DOI: 10.1039/c6cp01676f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
UV excitation of mass-selected hexachloroplatinate–nucleobase clusters provides detailed insight into the photophysics and photochemistry of a model DNA photopharmaceutical.
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Affiliation(s)
| | - Ananya Sen
- Department of Chemistry
- University of York
- York
- UK
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20
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Zech A, Aquilante F, Wesolowski TA. Orthogonality of embedded wave functions for different states in frozen-density embedding theory. J Chem Phys 2015; 143:164106. [DOI: 10.1063/1.4933372] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Alexander Zech
- Département de Chimie Physique, Université de Genève, 30 quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Francesco Aquilante
- Dipartimento di Chimica “G. Ciamician,” Università di Bologna, Via Selmi 2, IT-40126 Bologna, Italy
| | - Tomasz A. Wesolowski
- Département de Chimie Physique, Université de Genève, 30 quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
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21
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Abstract
For the modeling of solvatochromism with an explicit representation of the solvent molecules, the quality of preceding molecular dynamics simulations is crucial. Therefore, the possibility to apply force fields which are derived with as little empiricism as possible seems desirable. Such an approach is tested here by exploiting the sensitive solvatochromism of p-nitroaniline, and the use of reliable excitation energies based on approximate second-order coupled cluster results within a polarizable embedding scheme. The quality of the various MD settings for four different solvents, water, methanol, ethanol, and dichloromethane, is assessed. In general, good agreement with the experiment is observed when polarizable force fields and special treatment of hydrogen bonding are applied.
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Affiliation(s)
- Tobias Schwabe
- Center for Bioinformatics and Physical Chemistry Institute, University of Hamburg, Bundesstraße 43, D-20146 Hamburg, Germany
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22
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Lu Z, Beckstead AA, Kohler B, Matsika S. Excited State Relaxation of Neutral and Basic 8-Oxoguanine. J Phys Chem B 2015; 119:8293-301. [DOI: 10.1021/acs.jpcb.5b03565] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhen Lu
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122-6081, United States
| | - Ashley A. Beckstead
- Department
of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Bern Kohler
- Department
of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Spiridoula Matsika
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122-6081, United States
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23
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Sen A, Dessent CEH. Communication: Photoactivation of nucleobase bound platinumIImetal complexes: Probing the influence of the nucleobase. J Chem Phys 2014; 141:241101. [DOI: 10.1063/1.4904259] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Ananya Sen
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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24
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Gaenko A, DeFusco A, Varganov SA, Martínez TJ, Gordon MS. Interfacing the Ab Initio Multiple Spawning Method with Electronic Structure Methods in GAMESS: Photodecay of trans-Azomethane. J Phys Chem A 2014; 118:10902-8. [DOI: 10.1021/jp508242j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Albert DeFusco
- Center
for Simulation and Modeling, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Sergey A. Varganov
- Department
of Chemistry, University of Nevada, Reno, Reno Nevada 89557-0216, United States
| | - Todd J. Martínez
- Department
of Chemistry, Stanford University, Stanford, California 94305-5080, United States
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25
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Sen A, Dessent CEH. Mapping the UV Photophysics of Platinum Metal Complexes Bound to Nucleobases: Laser Spectroscopy of Isolated Uracil·Pt(CN)4(2-) and Uracil·Pt(CN)6(2-) Complexes. J Phys Chem Lett 2014; 5:3281-3285. [PMID: 26278431 DOI: 10.1021/jz501749j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report the first UV laser spectroscopic study of isolated gas-phase complexes of platinum metal complex anions bound to a nucleobase as model systems for exploring at the molecular level the key photophysical processes involved in photodynamic therapy. Spectra of the Pt(IV)(CN)6(2-)·Ur and Pt(II)(CN)4(2-)·Ur complexes were acquired across the 220-320 nm range using mass-selective photodepletion and photofragment action spectroscopy. The spectra of both complexes reveal prominent UV absorption bands (λmax = 4.90 and 4.70 eV) that we assign primarily to excitation of the Ur π-π* localized chromophore. Distinctive UV photofragmentation products are observed for the complexes, with Pt(IV)(CN)6(2-)·Ur photoexcitation resulting in complex fission, while Pt(II)(CN)4(2-)·Ur photoexcitation initiates a nucleobase proton-transfer reaction across 4.4-5.2 eV and electron detachment above 5.2 eV. The observed photofragments are consistent with ultrafast decay of a Ur localized excited state back to the electronic ground state followed by intramolecular vibrational relaxation and ergodic complex fragmentation.
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Affiliation(s)
- Ananya Sen
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Caroline E H Dessent
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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26
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Nakayama A, Arai G, Yamazaki S, Taketsugu T. Solvent effects on the ultrafast nonradiative deactivation mechanisms of thymine in aqueous solution: excited-state QM/MM molecular dynamics simulations. J Chem Phys 2014; 139:214304. [PMID: 24320377 DOI: 10.1063/1.4833563] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
On-the-fly excited-state quantum mechanics/molecular mechanics molecular dynamics (QM/MM-MD) simulations of thymine in aqueous solution are performed to investigate the role of solvent water molecules on the nonradiative deactivation process. The complete active space second-order perturbation theory (CASPT2) method is employed for a thymine molecule as the QM part in order to provide a reliable description of the excited-state potential energies. It is found that, in addition to the previously reported deactivation pathway involving the twisting of the C-C double bond in the pyrimidine ring, another efficient deactivation pathway leading to conical intersections that accompanies the out-of-plane displacement of the carbonyl group is observed in aqueous solution. Decay through this pathway is not observed in the gas phase simulations, and our analysis indicates that the hydrogen bonds with solvent water molecules play a key role in stabilizing the potential energies of thymine in this additional decay pathway.
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Affiliation(s)
- Akira Nakayama
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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27
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Affiliation(s)
- Shuai Sun
- Department
of Chemistry, University of Alberta, 11227 Saskatchewan Drive NW, Edmonton, AB T6G
2G2, Canada
| | - Alex Brown
- Department
of Chemistry, University of Alberta, 11227 Saskatchewan Drive NW, Edmonton, AB T6G
2G2, Canada
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28
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Micciarelli M, Valadan M, Della Ventura B, Di Fabio G, De Napoli L, Bonella S, Röthlisberger U, Tavernelli I, Altucci C, Velotta R. Photophysics and photochemistry of a DNA-protein cross-linking model: a synergistic approach combining experiments and theory. J Phys Chem B 2014; 118:4983-92. [PMID: 24742276 DOI: 10.1021/jp4115018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The photophysical and photochemical properties of 5-benzyluracil and 5,6-benzyluracil, the latter produced by photocyclization of the former through irradiation with femtosecond UV laser pulses, are investigated both experimentally and theoretically. The absorption spectra of the two molecules are compared, and the principal electronic transitions involved are discussed, with particular emphasis on the perturbation induced on the two chromophore species (uracil and benzene) by their proximity. The photoproduct formation for different irradiation times was verified with high-performance liquid chromatography and nuclear magnetic resonance measurements. The steady-state fluorescence demonstrates that the fluorescence is a distinctive physical observable for detection and selective identification of 5- and 5,6-benzyluracil. The principal electronic decay paths of the two molecules, obtained through TDDFT calculations, explain the features observed in the emission spectra and the photoreactivity of 5-benzyluracil. The order of magnitude of the lifetime of the excited states is derived with steady-state fluorescence anisotropy measurements and rationalized with the help of the computational findings. Finally, the spectroscopic data collected are used to derive the photocyclization and fluorescence quantum yields. In obtaining a global picture of the photophysical and photochemical properties of the two molecules, our findings demonstrates that the use of 5-benzyluracil as a model system to study the proximity relations of a DNA base with a close-lying aromatic amino acid is valid at a local level since the main characteristics of the decay processes from the excited states of the uracil/thymine molecules remain almost unchanged in 5-benzyluracil, the main perturbation arising from the presence of the close-lying aromatic group.
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Affiliation(s)
- Marco Micciarelli
- Department of Physics, University of Naples Federico II , Via Cintia, 26, 80126 Napoli, Italy
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29
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Li J, Ren HS, Ma JY, Li XY. Spectral Shift of π→π* Transition forp-Nitroaniline Based on a New Expression of Nonequilibrium Solvation Energy. CHINESE J CHEM PHYS 2014. [DOI: 10.1063/1674-0068/27/02/181-188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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30
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Ghosh D. Perturbative approximation to hybrid equation of motion coupled cluster/effective fragment potential method. J Chem Phys 2014; 140:094101. [DOI: 10.1063/1.4866838] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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31
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Zhang X, Herbert JM. Excited-State Deactivation Pathways in Uracil versus Hydrated Uracil: Solvatochromatic Shift in the 1nπ* State is the Key. J Phys Chem B 2014; 118:7806-17. [DOI: 10.1021/jp412092f] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xing Zhang
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - John M. Herbert
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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32
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Excited States Behavior of Nucleobases in Solution: Insights from Computational Studies. Top Curr Chem (Cham) 2014; 355:329-57. [DOI: 10.1007/128_2013_524] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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33
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Pruitt SR, Leang SS, Xu P, Fedorov DG, Gordon MS. Hexamers and witchamers: Which hex do you choose? COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.06.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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34
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Gordon MS, Smith QA, Xu P, Slipchenko LV. Accurate first principles model potentials for intermolecular interactions. Annu Rev Phys Chem 2013; 64:553-78. [PMID: 23561011 DOI: 10.1146/annurev-physchem-040412-110031] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The general effective fragment potential (EFP) method provides model potentials for any molecule that is derived from first principles, with no empirically fitted parameters. The EFP method has been interfaced with most currently used ab initio single-reference and multireference quantum mechanics (QM) methods, ranging from Hartree-Fock and coupled cluster theory to multireference perturbation theory. The most recent innovations in the EFP model have been to make the computationally expensive charge transfer term much more efficient and to interface the general EFP dispersion and exchange repulsion interactions with QM methods. Following a summary of the method and its implementation in generally available computer programs, these most recent new developments are discussed.
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Affiliation(s)
- Mark S Gordon
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA.
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35
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Höfener S, Gomes ASP, Visscher L. Solvatochromic shifts from coupled-cluster theory embedded in density functional theory. J Chem Phys 2013; 139:104106. [DOI: 10.1063/1.4820488] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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36
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De Silva N, Willow SY, Gordon MS. Solvent induced shifts in the UV spectrum of amides. J Phys Chem A 2013; 117:11847-55. [PMID: 23758065 DOI: 10.1021/jp402999p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Solvent effects on the electronic spectra of formamide and trans-N-methylacetamide are studied using four different levels of theory: singly excited configuration interaction (CIS), equations of motion coupled-cluster theory with singles and doubles (EOM-CCSD), completely renormalized coupled-cluster theory with singles and doubles with perturbative triple excitations (CR-EOM-CCSD(T)), and time-dependent density functional theory (TDDFT), employing small clusters of water molecules. The simulated electronic spectrum is obtained via molecular dynamics simulations with 100 waters modeled with the effective fragment potential method and exhibits a blue-shift and red-shift, respectively, for the n → π* and πnb → π* vertical excitation energies, in good agreement with the experimental electronic spectra of amides.
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Affiliation(s)
- Nuwan De Silva
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
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37
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Ghosh D, Kosenkov D, Vanovschi V, Flick J, Kaliman I, Shao Y, Gilbert AT, Krylov AI, Slipchenko LV. Effective fragment potential method inQ-CHEM: A guide for users and developers. J Comput Chem 2013; 34:1060-70. [DOI: 10.1002/jcc.23223] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 12/05/2012] [Accepted: 12/08/2012] [Indexed: 12/11/2022]
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38
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Nagata T, Fedorov DG, Sawada T, Kitaura K. Analysis of Solute–Solvent Interactions in the Fragment Molecular Orbital Method Interfaced with Effective Fragment Potentials: Theory and Application to a Solvated Griffithsin–Carbohydrate Complex. J Phys Chem A 2012; 116:9088-99. [DOI: 10.1021/jp304991a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Takeshi Nagata
- Graduate School of Pharmaceutical
Sciences, Kyoto University, 46-29 Yoshidashimo
Adachi, Sakyo-ku, Kyoto 606-8501, Japan
- NRI, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Dmitri G. Fedorov
- NRI, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Toshihiko Sawada
- NRI, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012,
Japan
| | - Kazuo Kitaura
- Graduate School of Pharmaceutical
Sciences, Kyoto University, 46-29 Yoshidashimo
Adachi, Sakyo-ku, Kyoto 606-8501, Japan
- NRI, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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39
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Szalay PG, Watson T, Perera A, Lotrich V, Fogarasi G, Bartlett RJ. Benchmark Studies on the Building Blocks of DNA. 2. Effect of Biological Environment on the Electronic Excitation Spectrum of Nucleobases. J Phys Chem A 2012; 116:8851-60. [DOI: 10.1021/jp305130q] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Péter G. Szalay
- Institute
of Chemistry, Eötvös University, H-1518 Budapest, P.O.
Box 32, Hungary
| | - Thomas Watson
- Quantum
Theory Project, University of Florida,
Gainesville, Florida, United
States
| | - Ajith Perera
- Quantum
Theory Project, University of Florida,
Gainesville, Florida, United
States
| | - Victor Lotrich
- Quantum
Theory Project, University of Florida,
Gainesville, Florida, United
States
| | - Géza Fogarasi
- Institute
of Chemistry, Eötvös University, H-1518 Budapest, P.O.
Box 32, Hungary
| | - Rodney J. Bartlett
- Quantum
Theory Project, University of Florida,
Gainesville, Florida, United
States
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40
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Minezawa N, Gordon MS. Optimizing conical intersections of solvated molecules: The combined spin-flip density functional theory/effective fragment potential method. J Chem Phys 2012; 137:034116. [DOI: 10.1063/1.4734314] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Ren HS, Li YK, Zhu Q, Zhu J, Li XY. Spectral shifts of the n → π* and π → π* transitions of uracil based on a modified form of solvent reorganization energy. Phys Chem Chem Phys 2012; 14:13284-91. [DOI: 10.1039/c2cp41047h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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42
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Selvaraj S, Arul Murugan N, Ågren H. Al3+ induced planarization, conformational arrest and metallochromic shift in a pyrimidine dione dye: insight from integrated hybrid quantum–classical calculations. Phys Chem Chem Phys 2012; 14:2339-45. [DOI: 10.1039/c2cp23238c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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43
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Yamazaki S, Taketsugu T. Nonradiative Deactivation Mechanisms of Uracil, Thymine, and 5-Fluorouracil: A Comparative ab Initio Study. J Phys Chem A 2011; 116:491-503. [DOI: 10.1021/jp206546g] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shohei Yamazaki
- Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Tetsuya Taketsugu
- Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
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44
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Sok S, Willow SY, Zahariev F, Gordon MS. Solvent-Induced Shift of the Lowest Singlet π → π* Charge-Transfer Excited State of p-Nitroaniline in Water: An Application of the TDDFT/EFP1 Method. J Phys Chem A 2011; 115:9801-9. [DOI: 10.1021/jp2045564] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Sarom Sok
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Soohaeng Y. Willow
- Center for Superfunctional Materials, Department of Chemistry, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea
| | - Federico Zahariev
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Mark S. Gordon
- Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011-3111, United States
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