301
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Schütz M. Oscillator strengths, first-order properties, and nuclear gradients for local ADC(2). J Chem Phys 2016; 142:214103. [PMID: 26049475 DOI: 10.1063/1.4921839] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
We describe theory and implementation of oscillator strengths, orbital-relaxed first-order properties, and nuclear gradients for the local algebraic diagrammatic construction scheme through second order. The formalism is derived via time-dependent linear response theory based on a second-order unitary coupled cluster model. The implementation presented here is a modification of our previously developed algorithms for Laplace transform based local time-dependent coupled cluster linear response (CC2LR); the local approximations thus are state specific and adaptive. The symmetry of the Jacobian leads to considerable simplifications relative to the local CC2LR method; as a result, a gradient evaluation is about four times less expensive. Test calculations show that in geometry optimizations, usually very similar geometries are obtained as with the local CC2LR method (provided that a second-order method is applicable). As an exemplary application, we performed geometry optimizations on the low-lying singlet states of chlorophyllide a.
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Affiliation(s)
- Martin Schütz
- Institute of Physical and Theoretical Chemistry, University of Regensburg, Universitätsstraße 31, D-93040 Regensburg, Germany
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302
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Das A, Müller T, Plasser F, Lischka H. Polyradical Character of Triangular Non-Kekulé Structures, Zethrenes, p-Quinodimethane-Linked Bisphenalenyl, and the Clar Goblet in Comparison: An Extended Multireference Study. J Phys Chem A 2016; 120:1625-36. [PMID: 26859789 PMCID: PMC4789636 DOI: 10.1021/acs.jpca.5b12393] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
In
this work, two different classes of polyaromatic hydrocarbon
(PAH) systems have been investigated in order to characterize the
amount of polyradical character and to localize the specific regions
of chemical reactivity: (a) the non-Kekulé triangular structures
phenalenyl, triangulene and a π-extended triangulene system
with high-spin ground state and (b) PAHs based on zethrenes, p-quinodimethane-linked bisphenalenyl, and the Clar goblet
containing varying polyradical character in their singlet ground state.
The first class of structures already have open-shell character because
of their high-spin ground state, which follows from the bonding pattern,
whereas for the second class the open-shell character is generated
either because of the competition between the closed-shell quinoid
Kekulé and the open-shell singlet biradical resonance structures
or the topology of the π-electron arrangement of the non-Kekulé
form. High-level ab initio calculations based on multireference theory
have been carried out to compute singlet–triplet splitting
for the above-listed compounds and to provide insight into their chemical
reactivity based on the polyradical character by means of unpaired
densities. Unrestricted density functional theory and Hartree–Fock
calculations have been performed for comparison also in order to obtain
better insight into their applicability to these types of complicated
radical systems.
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Affiliation(s)
- Anita Das
- Department of Chemistry and Biochemistry, Texas Tech University , Lubbock 79409, Texas United States
| | - Thomas Müller
- Institute for Advanced Simulation, Jülich Supercomputing Centre, Forschungszentrum Jülich , 52425 Jülich, Germany
| | - Felix Plasser
- Institute for Theoretical Chemistry, University of Vienna , A-1090 Vienna, Austria
| | - Hans Lischka
- Department of Chemistry and Biochemistry, Texas Tech University , Lubbock 79409, Texas United States.,Institute for Theoretical Chemistry, University of Vienna , A-1090 Vienna, Austria.,School of Pharmaceutical Sciences and Technology, Tianjin University , Tianjin, 300072 P.R. China
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303
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Wenzel J, Dreuw A. Physical Properties, Exciton Analysis, and Visualization of Core-Excited States: An Intermediate State Representation Approach. J Chem Theory Comput 2016; 12:1314-30. [DOI: 10.1021/acs.jctc.5b01161] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jan Wenzel
- Interdisciplinary Center
for Scientific Computing, University of Heidelberg, Im Neuenheimer
Feld 368, 69120 Heidelberg, Germany
| | - Andreas Dreuw
- Interdisciplinary Center
for Scientific Computing, University of Heidelberg, Im Neuenheimer
Feld 368, 69120 Heidelberg, Germany
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304
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Casanova D, Krylov AI. Quantifying local exciton, charge resonance, and multiexciton character in correlated wave functions of multichromophoric systems. J Chem Phys 2016; 144:014102. [DOI: 10.1063/1.4939222] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Affiliation(s)
- David Casanova
- Kimika Fakultatea, Euskal Herriko Unibersitatea (UPV/EHU) and Donostia International Physics Center (DIPC), P.K. 1072, 20018 Donostia, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Anna I. Krylov
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482, USA
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305
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Mewes SA, Mewes JM, Dreuw A, Plasser F. Excitons in poly(para phenylene vinylene): a quantum-chemical perspective based on high-level ab initio calculations. Phys Chem Chem Phys 2016; 18:2548-63. [DOI: 10.1039/c5cp07077e] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Exciton analyses of high-level quantum-chemical computations for poly(paraphenylene vinylene) reveal the nature of the excitonic bands in PPV oligomers.
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Affiliation(s)
- Stefanie A. Mewes
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
| | - Jan-Michael Mewes
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
| | - Felix Plasser
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
- Institute for Theoretical Chemistry
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306
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Slavov C, Yang C, Schweighauser L, Boumrifak C, Dreuw A, Wegner HA, Wachtveitl J. Connectivity matters – ultrafast isomerization dynamics of bisazobenzene photoswitches. Phys Chem Chem Phys 2016; 18:14795-804. [DOI: 10.1039/c6cp00603e] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have investigated the ultrafast dynamics of o-, m- and p-bisazobenzenes, which represent elementary building blocks for photoswitchable multiazobenzene nanostructures.
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Affiliation(s)
- Chavdar Slavov
- Institute of Physical and Theoretical Chemistry
- Goethe University
- 60438 Frankfurt am Main
- Germany
| | - Chong Yang
- Theoretical and Computational Chemistry
- Interdisciplinary Center for Scientific Computing (IWR)
- University of Heidelberg
- 69120 Heidelberg
- Germany
| | - Luca Schweighauser
- Institute of Organic Chemistry
- Justus-Liebig University Giessen
- 35392 Giessen
- Germany
| | - Chokri Boumrifak
- Institute of Physical and Theoretical Chemistry
- Goethe University
- 60438 Frankfurt am Main
- Germany
| | - Andreas Dreuw
- Theoretical and Computational Chemistry
- Interdisciplinary Center for Scientific Computing (IWR)
- University of Heidelberg
- 69120 Heidelberg
- Germany
| | - Hermann A. Wegner
- Institute of Organic Chemistry
- Justus-Liebig University Giessen
- 35392 Giessen
- Germany
| | - Josef Wachtveitl
- Institute of Physical and Theoretical Chemistry
- Goethe University
- 60438 Frankfurt am Main
- Germany
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307
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Miteva T, Wenzel J, Klaiman S, Dreuw A, Gokhberg K. X-Ray absorption spectra of microsolvated metal cations. Phys Chem Chem Phys 2016; 18:16671-81. [DOI: 10.1039/c6cp02606k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Core excited states of microsolvated ions undergo substantial delocalisation whose degree strongly depends on the ion's charge.
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Affiliation(s)
- T. Miteva
- Theoretische Chemie
- Physikalisch-Chemisches Institut
- Universität Heidelberg
- D-69120 Heidelberg
- Germany
| | - J. Wenzel
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
| | - S. Klaiman
- Theoretische Chemie
- Physikalisch-Chemisches Institut
- Universität Heidelberg
- D-69120 Heidelberg
- Germany
| | - A. Dreuw
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
| | - K. Gokhberg
- Theoretische Chemie
- Physikalisch-Chemisches Institut
- Universität Heidelberg
- D-69120 Heidelberg
- Germany
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308
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Fernandez-Alberti S, Makhov DV, Tretiak S, Shalashilin DV. Non-adiabatic excited state molecular dynamics of phenylene ethynylene dendrimer using a multiconfigurational Ehrenfest approach. Phys Chem Chem Phys 2016; 18:10028-40. [DOI: 10.1039/c5cp07332d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Photoinduced dynamics of electronic and vibrational unidirectional energy transfer between meta-linked building blocks in a phenylene ethynylene dendrimer is simulated using a multiconfigurational Ehrenfest in time-dependent diabatic basis (MCE-TDDB) method.
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Affiliation(s)
| | | | - Sergei Tretiak
- Center for Nonlinear Studies (CNLS)
- and Center for Integrated Nanotechnologies (CINT)
- Los Alamos National Laboratory
- Los Alamos
- USA
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309
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Chopra S. Graphyne and graphdiyne: theoretical insight into ground and excited state properties. RSC Adv 2016. [DOI: 10.1039/c6ra21155k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The ground and excited state properties of the two carbon allotropes, graphyne (C66H18) (gr1) and graphdiyne (C90H18) (gr2), in the form of nanoflakes were studied with the help of density functional theory (DFT) and time dependent density functional theory (TDDFT).
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310
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Chopra S. Excited state analysis of absorption processes in metal decorated graphene nanoribbons. RSC Adv 2016. [DOI: 10.1039/c6ra01513a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Transition density matrix (TDM) based excited state analysis presented for single metal atom doped graphene C29H14-X. Natural transition orbitals (NTOs) and e–h correlation plots of Ti-doped graphene are shown below.
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311
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Du L, Lan Z. Ultrafast structural flattening motion in photoinduced excited state dynamics of a bis(diimine) copper(i) complex. Phys Chem Chem Phys 2016; 18:7641-50. [DOI: 10.1039/c5cp06861d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intriguing ultrafast photoinduced structural change dynamics of a prototypical Cu(i) complex, namely, [Cu(dmp)2]+ (dmp = 2,9-dimethyl-1,10-phenanthroline), is investigated based on the theoretical analysis of static and dynamical calculations at the all-atomic level.
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Affiliation(s)
- Likai Du
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- People's Republic of China
| | - Zhenggang Lan
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- People's Republic of China
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312
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Jäger M, Freitag L, González L. Using computational chemistry to design Ru photosensitizers with directional charge transfer. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.03.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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313
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You ZQ, Mewes JM, Dreuw A, Herbert JM. Comparison of the Marcus and Pekar partitions in the context of non-equilibrium, polarizable-continuum solvation models. J Chem Phys 2015; 143:204104. [DOI: 10.1063/1.4936357] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Zhi-Qiang You
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA
| | - Jan-Michael Mewes
- Interdisciplinary Center for Scientific Computing, Ruprechts-Karls University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Ruprechts-Karls University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
| | - John M. Herbert
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA
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314
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Li Y, Ullrich CA. The Particle–Hole Map: A Computational Tool To Visualize Electronic Excitations. J Chem Theory Comput 2015; 11:5838-52. [DOI: 10.1021/acs.jctc.5b00987] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yonghui Li
- Department
of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, United States
- Department
of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Carsten A. Ullrich
- Department
of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, United States
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315
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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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316
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Liu W, Lunkenheimer B, Settels V, Engels B, Fink RF, Köhn A. A general ansatz for constructing quasi-diabatic states in electronically excited aggregated systems. J Chem Phys 2015; 143:084106. [DOI: 10.1063/1.4929352] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Wenlan Liu
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
- InnovationLab GmbH, Speyerer St. 4, D-69115 Heidelberg, Germany
| | - Bernd Lunkenheimer
- InnovationLab GmbH, Speyerer St. 4, D-69115 Heidelberg, Germany
- Institute of Physical Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Volker Settels
- Institute of Physical and Theoretical Chemistry, University of Würzburg, Emil-Fischer-St. 42, D-97074 Würzburg, Germany
| | - Bernd Engels
- Institute of Physical and Theoretical Chemistry, University of Würzburg, Emil-Fischer-St. 42, D-97074 Würzburg, Germany
| | - Reinhold F. Fink
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Andreas Köhn
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
- InnovationLab GmbH, Speyerer St. 4, D-69115 Heidelberg, Germany
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317
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Plasser F, Thomitzni B, Bäppler SA, Wenzel J, Rehn DR, Wormit M, Dreuw A. Statistical analysis of electronic excitation processes: Spatial location, compactness, charge transfer, and electron-hole correlation. J Comput Chem 2015; 36:1609-20. [PMID: 26119286 DOI: 10.1002/jcc.23975] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 05/26/2015] [Accepted: 05/28/2015] [Indexed: 01/20/2023]
Abstract
We report the development of a set of excited-state analysis tools that are based on the construction of an effective exciton wavefunction and its statistical analysis in terms of spatial multipole moments. This construction does not only enable the quantification of the spatial location and compactness of the individual hole and electron densities but also correlation phenomena can be analyzed, which makes this procedure particularly useful when excitonic or charge-resonance effects are of interest. The methods are first applied to bianthryl with a focus on elucidating charge-resonance interactions. It is shown how these derive from anticorrelations between the electron and hole quasiparticles, and it is discussed how the resulting variations in state characters affect the excited-state absorption spectrum. As a second example, cytosine is chosen. It is illustrated how the various descriptors vary for valence, Rydberg, and core-excited states, and the possibility of using this information for an automatic characterization of state characters is discussed.
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Affiliation(s)
- Felix Plasser
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120, Heidelberg, Germany.,Institute for Theoretical Chemistry, University of Vienna, Währingerstr. 17, 1090, Wien, Austria
| | - Benjamin Thomitzni
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
| | - Stefanie A Bäppler
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
| | - Jan Wenzel
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
| | - Dirk R Rehn
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
| | - Michael Wormit
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
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318
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Luzanov AV, Casanova D, Feng X, Krylov AI. Quantifying charge resonance and multiexciton character in coupled chromophores by charge and spin cumulant analysis. J Chem Phys 2015; 142:224104. [DOI: 10.1063/1.4921635] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Anatoliy V. Luzanov
- STC “Institute for Single Crystals,” National Academy of Sciences, Kharkov 61001, Ukraine
| | - David Casanova
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Euskadi, Spain
| | - Xintian Feng
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482, USA
| | - Anna I. Krylov
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482, USA
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319
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Plasser F, Bäppler SA, Wormit M, Dreuw A. New tools for the systematic analysis and visualization of electronic excitations. II. Applications. J Chem Phys 2015; 141:024107. [PMID: 25027999 DOI: 10.1063/1.4885820] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The excited states of a diverse set of molecules are examined using a collection of newly implemented analysis methods. These examples expose the particular power of three of these tools: (i) natural difference orbitals (the eigenvectors of the difference density matrix) for the description of orbital relaxation effects, (ii) analysis of the one-electron transition density matrix in terms of an electron-hole picture to identify charge resonance and excitonic correlation effects, and (iii) state-averaged natural transition orbitals for a compact simultaneous representation of several states. Furthermore, the utility of a wide array of additional analysis methods is highlighted. Five molecules with diverse excited state characteristics are chosen for these tasks: pyridine as a prototypical small heteroaromatic molecule, a model system of six neon atoms to study charge resonance effects, hexatriene in its neutral and radical cation forms to exemplify the cases of double excitations and spin-polarization, respectively, and a model iridium complex as a representative metal organic compound. Using these examples a number of phenomena, which are at first sight unexpected, are highlighted and their physical significance is discussed. Moreover, the generality of the conclusions of this paper is verified by a comparison of single- and multireference ab initio methods.
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Affiliation(s)
- Felix Plasser
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
| | - Stefanie A Bäppler
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
| | - Michael Wormit
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
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320
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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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321
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Lech CJ, Phan AT, Michel-Beyerle ME, Voityuk AA. Influence of base stacking geometry on the nature of excited states in G-quadruplexes: a time-dependent DFT study. J Phys Chem B 2015; 119:3697-705. [PMID: 25654765 DOI: 10.1021/jp512767j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
G-quadruplexes are four-stranded structures of nucleic acids that are formed from the association of guanine nucleobases into cyclical arrangements known as tetrads. G-quadruplexes are involved in a host of biological processes and are of interest in nanomaterial applications. However, not much is known about their electronic properties. In this paper, we analyze electronic excited states of G-quadruplexes using a combination of time-dependent DFT calculations and molecular dynamics simulations. We systematically consider experimentally observed arrangements of stacked guanine tetrads. The effects of structural features on exciton delocalization and photoinduced charge separation are explored using a quantitative analysis of the transition electron density. It is shown that collective coherent excitations shared between two guanine nucleobases dominate in the absorption spectrum of stacked G-tetrads. These excitations may also include a significant contribution of charge transfer states. Large variation in exciton localization is also observed between different structures with a general propensity toward localization between two bases. We reveal large differences in how charge separation occurs within different nucleobase arrangements, with some geometries favoring separation within a single tetrad and others favoring separation between tetrads. We also investigate the effects of the coordinating K(+) ion located in the central cavity of G-quadruplexes on the relative excited state properties of such systems. Our results demonstrate how the nature of excited states in G-quadruplexes depends on the nucleobase stacking geometry resulting from the mutual arrangement of guanine tetrads.
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Affiliation(s)
- Christopher J Lech
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 637371, Singapore
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322
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Plasser F, Dreuw A. High-Level Ab Initio Computations of the Absorption Spectra of Organic Iridium Complexes. J Phys Chem A 2015; 119:1023-36. [DOI: 10.1021/jp5122917] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Felix Plasser
- Interdisciplinary
Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
| | - Andreas Dreuw
- Interdisciplinary
Center for Scientific Computing, Ruprecht-Karls-University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
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323
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Li JH, Zuehlsdorff TJ, Payne MC, Hine NDM. Identifying and tracing potential energy surfaces of electronic excitations with specific character via their transition origins: application to oxirane. Phys Chem Chem Phys 2015; 17:12065-79. [DOI: 10.1039/c5cp01018g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We show that the transition origins of electronic excitations identified by quantified natural transition orbital (QNTO) analysis can be employed to connect potential energy surfaces (PESs) according to their character across a wide range of molecular geometries.
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Affiliation(s)
- Jian-Hao Li
- TCM Group
- Cavendish Laboratory
- Cambridge CB3 0HE
- UK
| | | | - M. C. Payne
- TCM Group
- Cavendish Laboratory
- Cambridge CB3 0HE
- UK
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324
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Huang J, Du L, Hu D, Lan Z. Theoretical analysis of excited states and energy transfer mechanism in conjugated dendrimers. J Comput Chem 2014; 36:151-63. [DOI: 10.1002/jcc.23778] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 09/05/2014] [Accepted: 10/13/2014] [Indexed: 01/28/2023]
Affiliation(s)
- Jing Huang
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
- The Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
| | - Likai Du
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
- The Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
| | - Deping Hu
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
- The Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
| | - Zhenggang Lan
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
- The Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 Shandong People's Republic of China
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325
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Dreuw A, Wormit M. The algebraic diagrammatic construction scheme for the polarization propagator for the calculation of excited states. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2014. [DOI: 10.1002/wcms.1206] [Citation(s) in RCA: 318] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Andreas Dreuw
- Interdisciplinary Center for Scientific Computing; Ruprecht-Karls University; Heidelberg Germany
| | - Michael Wormit
- Interdisciplinary Center for Scientific Computing; Ruprecht-Karls University; Heidelberg Germany
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326
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Bessette A, Cibian M, Bélanger F, Désilets D, Hanan GS. Introducing asymmetry in tetradentate azadipyrromethene chromophores: a systematic study of the impact on electronic and photophysical properties. Phys Chem Chem Phys 2014; 16:22207-21. [DOI: 10.1039/c4cp02629b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
As analogues of the porphyrinoid and dipyrromethene families of dye, azadipyrromethene (ADPM) derivatives exhibit exciting photophysical properties.
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Affiliation(s)
- André Bessette
- Département de Chimie
- Université de Montréal
- Montréal, Canada
- Saint-Jean Photochemicals Inc
- Saint-Jean-sur-Richelieu, Canada
| | - Mihaela Cibian
- Département de Chimie
- Université de Montréal
- Montréal, Canada
| | | | - Denis Désilets
- Saint-Jean Photochemicals Inc
- Saint-Jean-sur-Richelieu, Canada
| | - Garry S. Hanan
- Département de Chimie
- Université de Montréal
- Montréal, Canada
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