1
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Michon MA, Chmielniak P, Weber PM, Rose-Petruck C. Two-photon chemistry of tetrahydrofuran in clathrate hydrates. Phys Chem Chem Phys 2024; 26:2568-2579. [PMID: 38170862 DOI: 10.1039/d3cp02607h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
High-lying electronic states hold the potential for new and unusual photochemical reactions. However, for conventional single-photon excitation in the condensed phase, reaching these states is often not possible because the vacuum-ultraviolet (VUV) light required is competitively absorbed by the surrounding matrix rather than the molecule of interest. Here, this hurdle is overcome by leveraging nonresonant two-photon absorption (2PA) at 265 nm to achieve preferential photolysis of tetrahydrofuran (THF) trapped within a clathrate hydrate network at 77 K. Electron spin resonance (ESR) spectroscopy enables direct observation and identification of otherwise short-lived organic radicals stabilized by the clathrate cages, providing clues into the rapid dynamics that immediately follow photoexcitation. 2PA induces extensive fragmentation of enclathrated THF yielding 1-alkyl, acyl, allyl and methyl radicals-a stark departure from the reactive motifs commonly reported in γ-irradiated hydrates. We speculate on the undetected transient dynamics and explore the potential role of trapped electrons generated from water and THF. This demonstration of nonresonant two-photon chemistry presents an alternative approach to targeted condensed phase photochemistry in the VUV energy range.
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Affiliation(s)
- Michael A Michon
- Department of Chemistry, Brown University, Providence, 02912, Rhode Island, USA.
| | - Pawel Chmielniak
- Department of Chemistry, Brown University, Providence, 02912, Rhode Island, USA.
| | - Peter M Weber
- Department of Chemistry, Brown University, Providence, 02912, Rhode Island, USA.
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2
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Boukhvalov DW, Zatsepin DA, Kuznetsova YA, Pryakhina VI, Zatsepin AF. Uncommon 2D diamond-like carbon nanodots derived from nanotubes: atomic structure, electronic states, and photonic properties. Phys Chem Chem Phys 2023. [PMID: 37365886 DOI: 10.1039/d3cp01158e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
In this article, we report the results of a relatively facile fabrication of carbon nanodots from single-walled and multi-walled carbon nanotubes (SWCNTs and MWCNTs). The results of X-ray photoelectron spectroscopy (XPS) and Raman measurements show that the obtained carbon nanodots are quasi-two-dimensional objects with a diamond-like structure. Based on the characterization results, a theoretical model of the synthesized carbon nanodots was developed. The measured absorption spectra demonstrate the similarity in the local atomic structure of carbon nanodots synthesized from single-walled and multi-walled carbon nanotubes. However, the photoluminescence (PL) spectra of nanodots synthesized from both sources turned out to be completely different. Carbon dots fabricated from MWCNTs exhibit PL spectra similar to those of nanoscale carbon systems with sp3 hybridization and a valuable edge contribution. At the same time nanodots synthesized from SWCNTs exhibit PL spectra which are typical for quantum dots with an estimated size of ∼0.6-1.3 nm.
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Affiliation(s)
- D W Boukhvalov
- College of Science, Institute of Materials Physics and Chemistry, Nanjing Forestry University, Nanjing 210037, P. R. China.
- Ural Federal University, Mira Street 19, Ekaterinburg 620002, Russia
| | - D A Zatsepin
- Ural Federal University, Mira Street 19, Ekaterinburg 620002, Russia
- Institute of Metal Physics, Russian Academy of Sciences, Ural Branch, Yekaterinburg, Russia, 620108
| | - Yu A Kuznetsova
- Ural Federal University, Mira Street 19, Ekaterinburg 620002, Russia
| | - V I Pryakhina
- Ural Federal University, Mira Street 19, Ekaterinburg 620002, Russia
| | - A F Zatsepin
- Ural Federal University, Mira Street 19, Ekaterinburg 620002, Russia
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3
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Reshetnyak I, Lorin A, Pasquarello A. Many-body screening effects in liquid water. Nat Commun 2023; 14:2705. [PMID: 37169764 PMCID: PMC10175292 DOI: 10.1038/s41467-023-38420-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/27/2023] [Indexed: 05/13/2023] Open
Abstract
The screening arising from many-body excitations is a crucial quantity for describing absorption and inelastic X-ray scattering (IXS) of materials. Similarly, the electron screening plays a critical role in state-of-the-art approaches for determining the fundamental band gap. However, ab initio studies of the screening in liquid water have remained limited. Here, we use a combined analysis based on the Bethe-Salpeter equation and time-dependent density functional theory. We first show that absorption spectra at near-edge energies are insufficient to assess the accuracy by which the screening is described. Next, when the energy range under scrutiny is extended, we instead find that the IXS spectra are highly sensitive and allow for the selection of the optimal theoretical scheme. This leads to good agreement with experiment over a large range of transferred energies and momenta, and enables establishing the elusive fundamental band gap of liquid water at 9.3 eV.
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Affiliation(s)
- Igor Reshetnyak
- Chaire de Simulation à l'Echelle Atomique (CSEA), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Arnaud Lorin
- Chaire de Simulation à l'Echelle Atomique (CSEA), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Alfredo Pasquarello
- Chaire de Simulation à l'Echelle Atomique (CSEA), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
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4
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Born-Oppenheimer molecular dynamics and electronic properties of liquid H2S: The importance of a non-local approach to dispersion interactions. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Matusalem F, Marques M, Guilhon I, Teles LK. Efficient calculation of excitonic effects in solids including approximated quasiparticle energies. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:405505. [PMID: 32492665 DOI: 10.1088/1361-648x/ab9912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
In this work we present a new procedure to compute optical spectra including excitonic effects and approximated quasiparticle corrections with reduced computational effort. The excitonic effects on optical spectra are included by solving the Bethe-Salpeter equation, considering quasiparticle eigenenergies and respective wavefunctions obtained within DFT-1/2 method. The electron-hole ladder diagrams are approximated by the screened exchange. To prove the capability of the procedure, we compare the calculated imaginary part of the dielectric functions of Si, Ge, GaAs, GaP, GaSb, InAs, InP, and InSb with experimental data. The energy position of the absorption peaks are correctly described. The good agreement with experimental results together with the very significant reduction of computational effort makes the procedure suitable on the investigation of optical spectra of more complex systems.
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Affiliation(s)
- Filipe Matusalem
- Group of Semiconductor Materials and Nanotechnology (GMSN), Technological Institute of Aeronautics (ITA), 12228-900 São José dos Campos/SP, Brazil 1
| | - Marcelo Marques
- Group of Semiconductor Materials and Nanotechnology (GMSN), Technological Institute of Aeronautics (ITA), 12228-900 São José dos Campos/SP, Brazil 1
| | - Ivan Guilhon
- Group of Semiconductor Materials and Nanotechnology (GMSN), Technological Institute of Aeronautics (ITA), 12228-900 São José dos Campos/SP, Brazil 1
| | - Lara K Teles
- Group of Semiconductor Materials and Nanotechnology (GMSN), Technological Institute of Aeronautics (ITA), 12228-900 São José dos Campos/SP, Brazil 1
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6
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Nguyen NL, Ma H, Govoni M, Gygi F, Galli G. Finite-Field Approach to Solving the Bethe-Salpeter Equation. PHYSICAL REVIEW LETTERS 2019; 122:237402. [PMID: 31298883 DOI: 10.1103/physrevlett.122.237402] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 12/13/2018] [Indexed: 05/26/2023]
Abstract
We present a method to compute optical spectra and exciton binding energies of molecules and solids based on the solution of the Bethe-Salpeter equation and the calculation of the screened Coulomb interaction in a finite field. The method does not require either the explicit evaluation of dielectric matrices or of virtual electronic states, and can be easily applied without resorting to the random phase approximation. In addition, it utilizes localized orbitals obtained from Bloch states using bisection techniques, thus greatly reducing the complexity of the calculation and enabling the efficient use of hybrid functionals to obtain single particle wave functions. We report exciton binding energies of several molecules and absorption spectra of condensed systems of unprecedented size, including water and ice samples with hundreds of atoms.
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Affiliation(s)
- Ngoc Linh Nguyen
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, USA
| | - He Ma
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, USA
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, USA
| | - Marco Govoni
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, USA
- Materials Science Division and Institute for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Francois Gygi
- Department of Computer Science, University of California Davis, Davis, California 95616, USA
| | - Giulia Galli
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, USA
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, USA
- Materials Science Division and Institute for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, USA
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7
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Luu TT, Yin Z, Jain A, Gaumnitz T, Pertot Y, Ma J, Wörner HJ. Extreme-ultraviolet high-harmonic generation in liquids. Nat Commun 2018; 9:3723. [PMID: 30213950 PMCID: PMC6137105 DOI: 10.1038/s41467-018-06040-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/13/2018] [Indexed: 11/21/2022] Open
Abstract
High–harmonic generation (HHG) in gases has been the main enabling technology of attosecond science since its discovery. Recently, HHG from solids has been demonstrated, opening a lively area of research. In contrast, harmonic generation from liquids has so far remained restricted to low harmonics in the visible regime. Here, we report the observation and detailed characterization of extreme ultraviolet HHG from liquid water and several alcohols extending beyond 20 eV. This advance was enabled by the implementation of the recent liquid flat–microjet technology, which we show to facilitate the spatial separation of HHG from the bulk liquid and the surrounding gas phase. We observe striking differences between the HHG spectra of water and several alcohols. A comparison with a strongly–driven few–band model establishes the sensitivity of HHG to the electronic structure of liquids. Our results suggest liquid–phase high–harmonic spectroscopy as a new method for studying the electronic structure and ultrafast scattering processes in liquids. While high–harmonic generation from gases, and more recently also from solids, has been extensively studied, there is little data on HHG from liquids. Here, Luu et al. experimentally demonstrate and study HHG up to 27th order from the bulk of liquid water and different alcohols.
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Affiliation(s)
- Tran Trung Luu
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093, Zürich, Switzerland.
| | - Zhong Yin
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093, Zürich, Switzerland
| | - Arohi Jain
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093, Zürich, Switzerland
| | - Thomas Gaumnitz
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093, Zürich, Switzerland
| | - Yoann Pertot
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093, Zürich, Switzerland
| | - Jun Ma
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093, Zürich, Switzerland
| | - Hans Jakob Wörner
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093, Zürich, Switzerland.
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8
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Ghosh S, Verma P, Cramer CJ, Gagliardi L, Truhlar DG. Combining Wave Function Methods with Density Functional Theory for Excited States. Chem Rev 2018; 118:7249-7292. [PMID: 30044618 DOI: 10.1021/acs.chemrev.8b00193] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We review state-of-the-art electronic structure methods based both on wave function theory (WFT) and density functional theory (DFT). Strengths and limitations of both the wave function and density functional based approaches are discussed, and modern attempts to combine these two methods are presented. The challenges in modeling excited-state chemistry using both single-reference and multireference methods are described. Topics covered include background, combining density functional theory with single-configuration wave function theory, generalized Kohn-Sham (KS) theory, global hybrids, range-separated hybrids, local hybrids, using KS orbitals in many-body theory (including calculations of the self-energy and the GW approximation), Bethe-Salpeter equation, algorithms to accelerate GW calculations, combining DFT with multiconfigurational WFT, orbital-dependent correlation functionals based on multiconfigurational WFT, building multiconfigurational wave functions from KS configurations, adding correlation functionals to multiconfiguration self-consistent-field (MCSCF) energies, combining DFT with configuration-interaction singles by means of time-dependent DFT, using range separation to combine DFT with MCSCF, embedding multiconfigurational WFT in DFT, and multiconfiguration pair-density functional theory.
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Affiliation(s)
- Soumen Ghosh
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute , University of Minnesota , 207 Pleasant Street SE , Minneapolis , Minnesota 55455-0431 , United States
| | - Pragya Verma
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute , University of Minnesota , 207 Pleasant Street SE , Minneapolis , Minnesota 55455-0431 , United States
| | - Christopher J Cramer
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute , University of Minnesota , 207 Pleasant Street SE , Minneapolis , Minnesota 55455-0431 , United States
| | - Laura Gagliardi
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute , University of Minnesota , 207 Pleasant Street SE , Minneapolis , Minnesota 55455-0431 , United States
| | - Donald G Truhlar
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute , University of Minnesota , 207 Pleasant Street SE , Minneapolis , Minnesota 55455-0431 , United States
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9
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Wei M, Jin F, Chen T, Ma Y. Variation of optical spectra of water clusters with size from many-body Green's function theory. J Chem Phys 2018; 148:224302. [PMID: 29907027 DOI: 10.1063/1.5031083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Water clusters are an important species in the environment and atmosphere and take part in various chemical and biological reactions. How their optical properties vary with size is still an open question. Using the GW method and Bethe-Salpeter equation within the ab initio many-body Green's function theory, we study the electronic excitations in a series of water clusters (H2O)n with n = 1-48. We find that their absorption peaks blueshift with increasing cluster size due to the reducing electron-hole binding energy which arises from the enhanced electronic screening and gradually delocalized excitonic spatial distribution. The position of the first absorption peak has a close relation to the average number of hydrogen bonds per molecule. Off-diagonal matrix elements of the self-energy operator have pronounced effects on the unoccupied electronic levels and optical absorption for small clusters with n ≤ 10 when using density functional theory as the starting point for GW calculations. Although the optical absorption is predominated by delocalized excitons, highly localized excitons on a single water molecule are always present on the cluster surface in the vicinity of the absorption edge. These localized excitons may facilitate the photodissociation of water molecules. This can provide inspiration on the excited-state dynamics and photolysis in water clusters.
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Affiliation(s)
- Min Wei
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Fan Jin
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Tingwei Chen
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yuchen Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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10
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Blase X, Duchemin I, Jacquemin D. The Bethe–Salpeter equation in chemistry: relations with TD-DFT, applications and challenges. Chem Soc Rev 2018; 47:1022-1043. [DOI: 10.1039/c7cs00049a] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We review the Bethe–Salpeter formalism and analyze its performances for the calculation of the excited state properties of molecular systems.
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Affiliation(s)
- Xavier Blase
- Univ. Grenoble Alpes
- CNRS
- Inst NEEL
- F-38042 Grenoble
- France
| | - Ivan Duchemin
- Univ. Grenoble Alpes
- CEA
- INAC-MEM
- L-Sim
- F-38000 Grenoble
| | - Denis Jacquemin
- CEISAM UMR CNRS 6230
- Université de Nantes
- 44322 Nantes Cedex 3
- France
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11
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Petrik NG, Kimmel GA. Electron-stimulated reactions in nanoscale water films adsorbed on α-Al2O3(0001). Phys Chem Chem Phys 2018; 20:11634-11642. [DOI: 10.1039/c8cp01284a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
100 eV electrons are stopped in the H2O portion of the isotopically-layered nanoscale film on α-Al2O3(0001) but D2 is produced at the D2O/alumina interface by mobile electronic excitations and/or hydronium ions.
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Affiliation(s)
- Nikolay G. Petrik
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Greg A. Kimmel
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland
- USA
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12
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P SK, Genova A, Pavanello M. Cooperation and Environment Characterize the Low-Lying Optical Spectrum of Liquid Water. J Phys Chem Lett 2017; 8:5077-5083. [PMID: 28968128 DOI: 10.1021/acs.jpclett.7b02212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The optical spectrum of liquid water is analyzed by subsystem time-dependent density functional theory. We provide simple explanations for several important (and so far elusive) features. Due to the disordered environment surrounding each water molecule, the joint density of states of the liquid is much broader than that of the vapor, thus explaining the red-shifted Urbach tail of the liquid compared to the gas phase. Confinement effects provided by the first solvation shell are responsible for the blue shift of the first absorption peak compared to the vapor. In addition, we also characterize many-body excitonic effects. These dramatically affect the spectral weights at low frequencies, contributing to the refractive index by a small but significant amount.
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Affiliation(s)
- Sudheer Kumar P
- Department of Chemistry, Rutgers University , Newark, New Jersey 07102, United States
| | - Alessandro Genova
- Department of Chemistry, Rutgers University , Newark, New Jersey 07102, United States
| | - Michele Pavanello
- Department of Chemistry, Rutgers University , Newark, New Jersey 07102, United States
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13
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Cocchi C, Draxl C. Understanding the effects of packing and chemical terminations on the optical excitations of azobenzene-functionalized self-assembled monolayers. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:394005. [PMID: 28664870 DOI: 10.1088/1361-648x/aa7ca7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In a first-principles study based on many-body perturbation theory, we analyze the optical excitations of azobenzene-functionalized self-assembled monolayers (SAMs) with increasing packing density and different terminations, considering for comparison the corresponding gas-phase molecules and dimers. Intermolecular coupling increases with the density of the chromophores independently of the functional groups. The intense [Formula: see text] resonance that triggers photo-isomerization is present in the spectra of isolated dimers and diluted SAMs, but it is almost completely washed out in tightly packed architectures. Intermolecular coupling is partially inhibited by mixing differently functionalized azobenzene derivatives, in particular when large groups are involved. In this way, the excitation band inducing the photo-isomerization process is partially preserved and the effects of dense packing partly counterbalanced. Our results suggest that a tailored design of azobenzene-functionalized SAMs which optimizes the interplay between the packing density of the chromophores and their termination can lead to significant improvements in the photo-switching efficiency of these systems.
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Affiliation(s)
- Caterina Cocchi
- Physics Department and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany. European Theoretical Spectroscopic Facility (ETSF
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14
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Energetic Study of Clusters and Reaction Barrier Heights from Efficient Semilocal Density Functionals. COMPUTATION 2017. [DOI: 10.3390/computation5020027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Marin TW, Janik I, Bartels DM, Chipman DM. Vacuum ultraviolet spectroscopy of the lowest-lying electronic state in subcritical and supercritical water. Nat Commun 2017; 8:15435. [PMID: 28513601 PMCID: PMC5442368 DOI: 10.1038/ncomms15435] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 03/29/2017] [Indexed: 11/10/2022] Open
Abstract
The nature and extent of hydrogen bonding in water has been scrutinized for decades, including how it manifests in optical properties. Here we report vacuum ultraviolet absorption spectra for the lowest-lying electronic state of subcritical and supercritical water. For subcritical water, the spectrum redshifts considerably with increasing temperature, demonstrating the gradual breakdown of the hydrogen-bond network. Tuning the density at 381 °C gives insight into the extent of hydrogen bonding in supercritical water. The known gas-phase spectrum, including its vibronic structure, is duplicated in the low-density limit. With increasing density, the spectrum blueshifts and the vibronic structure is quenched as the water monomer becomes electronically perturbed. Fits to the supercritical water spectra demonstrate consistency with dimer/trimer fractions calculated from the water virial equation of state and equilibrium constants. Using the known water dimer interaction potential, we estimate the critical distance between molecules (ca. 4.5 Å) needed to explain the vibronic structure quenching. The link between hydrogen bonding and the optical properties of water has been debated for many years, but not fully understood. Here, the authors report vacuum ultraviolet absorption spectra for subcritical and supercritical water, providing insight into the electronic structure of water and its relation to hydrogen bonding.
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Affiliation(s)
- Timothy W Marin
- Department of Chemistry, Benedictine University, 5700 College Road, Lisle, Illinois 60532, USA
| | - Ireneusz Janik
- Notre Dame Radiation Laboratory, Notre Dame, Indiana 46556, USA
| | - David M Bartels
- Notre Dame Radiation Laboratory, Notre Dame, Indiana 46556, USA
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16
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Reeves KG, Kanai Y. Electronic Excitation Dynamics in Liquid Water under Proton Irradiation. Sci Rep 2017; 7:40379. [PMID: 28084420 PMCID: PMC5233951 DOI: 10.1038/srep40379] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 12/05/2016] [Indexed: 12/03/2022] Open
Abstract
Molecular behaviour of liquid water under proton irradiation is of great importance to a number of technological and medical applications. The highly energetic proton generates a time-varying field that is highly localized and heterogeneous at the molecular scale, and massive electronic excitations are produced as a result of the field-matter interaction. Using first-principles quantum dynamics simulations, we reveal details of how electrons are dynamically excited through non-equilibrium energy transfer from highly energetic protons in liquid water on the atto/femto-second time scale. Water molecules along the path of the energetic proton undergo ionization at individual molecular level, and the excitation primarily derives from lone pair electrons on the oxygen atom of water molecules. A reduced charge state on the energetic proton in the condensed phase of water results in the strongly suppressed electronic response when compared to water molecules in the gas phase. These molecular-level findings provide important insights into understanding the water radiolysis process under proton irradiation.
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Affiliation(s)
- Kyle G Reeves
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Yosuke Kanai
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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17
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Jin F, Wei M, Liu C, Ma Y. The mechanism for the formation of OH radicals in condensed-phase water under ultraviolet irradiation. Phys Chem Chem Phys 2017; 19:21453-21460. [DOI: 10.1039/c7cp01798g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OH radicals can be produced via direct water photolysis through concerted proton and electron transfer.
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Affiliation(s)
- Fan Jin
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Min Wei
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Chengbu Liu
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Yuchen Ma
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
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18
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Goto T, Beć KB, Ozaki Y. Interpretation of the à ← X̃ transition of hydrated protons in aqueous solutions observed in the far-UV region with quantum chemical calculations. Phys Chem Chem Phys 2017; 19:21490-21499. [DOI: 10.1039/c7cp01766a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A substantial blue-shift of the first electronic transition band of liquid water with a H2SO4 concentration (0–14.4 M) observed in the far-UV region.
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Affiliation(s)
- Takeyoshi Goto
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Krzysztof B. Beć
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Yukihiro Ozaki
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
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19
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Cocchi C, Moldt T, Gahl C, Weinelt M, Draxl C. Optical properties of azobenzene-functionalized self-assembled monolayers: Intermolecular coupling and many-body interactions. J Chem Phys 2016; 145:234701. [DOI: 10.1063/1.4971436] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Caterina Cocchi
- Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany
- European Theoretical Spectroscopic Facility (ETSF)
| | - Thomas Moldt
- Fachbereich Physik, Freie Universität Berlin, Berlin, Germany
| | - Cornelius Gahl
- Fachbereich Physik, Freie Universität Berlin, Berlin, Germany
| | - Martin Weinelt
- Fachbereich Physik, Freie Universität Berlin, Berlin, Germany
| | - Claudia Draxl
- Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany
- European Theoretical Spectroscopic Facility (ETSF)
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20
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Ziaei V, Bredow T. Red and blue shift of liquid water’s excited states: A many body perturbation study. J Chem Phys 2016. [DOI: 10.1063/1.4960561] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Vafa Ziaei
- Mulliken Center for Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Thomas Bredow
- Mulliken Center for Theoretical Chemistry, University of Bonn, Bonn, Germany
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21
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Leng X, Jin F, Wei M, Ma Y. GW method and Bethe-Salpeter equation for calculating electronic excitations. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1265] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xia Leng
- School of Chemistry and Chemical Engineering; Shandong University; Jinan China
| | - Fan Jin
- School of Chemistry and Chemical Engineering; Shandong University; Jinan China
| | - Min Wei
- School of Chemistry and Chemical Engineering; Shandong University; Jinan China
| | - Yuchen Ma
- School of Chemistry and Chemical Engineering; Shandong University; Jinan China
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22
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Cheng N, Ma Y, Liu Y, Zhang C, Liu C. Structures and photoelectric properties of five benzotrithiophene isomers-based donor-acceptor copolymers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 159:262-268. [PMID: 26881340 DOI: 10.1016/j.saa.2016.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/06/2016] [Accepted: 02/05/2016] [Indexed: 06/05/2023]
Abstract
In this paper, we have investigated the structures, electronic and optical properties of five conjugated copolymers (BTT1-BTz, BTT2-BTz, BTT3-BTz, BTT4-BTz and BTT5-BTz) featuring benzotrithiophene (BTT) isomers as donor units and benzothiadiazole (BTz) as acceptor units, linked through thiophene spacers, employing many-body perturbation theory (MBPT). We have explored the isomer effects by configuration of the sulfur atoms in BTT units, aimed to get insight into how the structural modifications to the conjugated backbone can influence the molecular structures and electronic properties of conjugated polymers. Using the trimer as the computational model, the calculated low and high energy absorption bands (660 and 413 nm) for BTT1-BTz agree well with the experimental ones (645 and 430 nm) with a small offset of ~15 nm. On the basis of our calculations, it is found that the backbones of these polymers display different coplanarities, with the dihedral angles between the two neighboring rings varying from 12.3° to 79.0°. Importantly, both BTT1-BTz and BTT2-BTz exhibit intense adsorption around 660 and 623 nm, indicating their promising application in solar cells, whereas BTT3-BTz and BTT4-BTz display the intense adsorption at 569 and 551 nm, which are also usable in the tandem solar cells. BTT5-BTz has narrow and weak adsorption in the visible and infrared region, implying it is not conducive to the sunlight absorption. The blue shift of about 150 nm from BTT1-BTz to BTT5-BTz is suggested to be originated from the shorter effective conjugation lengths.
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Affiliation(s)
- Na Cheng
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Yuchen Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Yongjun Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Changqiao Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Chengbu Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
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23
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Blase X, Boulanger P, Bruneval F, Fernandez-Serra M, Duchemin I. GW and Bethe-Salpeter study of small water clusters. J Chem Phys 2016; 144:034109. [DOI: 10.1063/1.4940139] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | - Fabien Bruneval
- CEA, DEN, Service de Recherches de Métallurgie Physique, F-91191 Gif-sur-Yvette, France
| | - Marivi Fernandez-Serra
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
- Institute for Advanced Computational Sciences, Stony Brook University, Stony Brook, New York 11794-3800, USA
| | - Ivan Duchemin
- INAC, SP2M/L_Sim, CEA/UJF Cedex 09, 38054 Grenoble, France
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24
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de Koning M, Fazzio A, da Silva AJR, Antonelli A. On the nature of the solvated electron in ice Ih. Phys Chem Chem Phys 2016; 18:4652-8. [DOI: 10.1039/c5cp06229b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The water-solvated excess electron (EE) is a key chemical agent whose hallmark signature, its asymmetric optical absorption spectrum, continues to be a topic of debate.
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Affiliation(s)
- Maurice de Koning
- Instituto de Física ‘Gleb Wataghin’
- Universidade Estadual de Campinas
- Campinas-SP
- Brazil
| | | | | | - Alex Antonelli
- Instituto de Física ‘Gleb Wataghin’
- Universidade Estadual de Campinas
- Campinas-SP
- Brazil
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25
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Engel EA, Monserrat B, Needs RJ. Vibrational renormalisation of the electronic band gap in hexagonal and cubic ice. J Chem Phys 2015; 143:244708. [DOI: 10.1063/1.4938029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Edgar A. Engel
- TCM Group, Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Bartomeu Monserrat
- TCM Group, Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854-8019, USA
| | - Richard J. Needs
- TCM Group, Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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26
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Hermann A, Guthrie M, Nelmes RJ, Loveday JS. Pressure-induced localisation of the hydrogen-bond network in KOH-VI. J Chem Phys 2015; 143:244706. [PMID: 26723701 DOI: 10.1063/1.4938260] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Using a combination of ab initio crystal structure prediction and neutron diffraction techniques, we have solved the full structure of KOH-VI at 7 GPa. Rather than being orthorhombic and proton-ordered as had previously be proposed, we find that this high-pressure phase of potassium hydroxide is tetragonal (space group I4/mmm) and proton disordered. It has an unusual hydrogen bond topology, where the hydroxyl groups form isolated hydrogen-bonded square planar (OH)4 units. This structure is stable above 6.5 GPa and, despite being macroscopically proton-disordered, local ice rules enforce microscopic order of the hydrogen bonds. We suggest the use of this novel type of structure to study concerted proton tunneling in the solid state, while the topology of the hydrogen bond network could conceivably be exploited in data storage applications based solely on the manipulations of hydrogen bonds. The unusual localisation of the hydrogen bond network under applied pressure is found to be favored by a more compact packing of the constituents in a distorted cesium chloride structure.
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Affiliation(s)
- Andreas Hermann
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - Malcolm Guthrie
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - Richard J Nelmes
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - John S Loveday
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
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27
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Hoffmann A, Rohrmüller M, Jesser A, dos Santos Vieira I, Schmidt WG, Herres-Pawlis S. Geometrical and optical benchmarking of copper(II) guanidine-quinoline complexes: insights from TD-DFT and many-body perturbation theory (part II). J Comput Chem 2014; 35:2146-61. [PMID: 25255876 DOI: 10.1002/jcc.23740] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 08/15/2014] [Accepted: 08/18/2014] [Indexed: 12/15/2022]
Abstract
Ground- and excited-state properties of copper(II) charge-transfer systems have been investigated starting from density-functional calculations with particular emphasis on the role of (i) the exchange and correlation functional, (ii) the basis set, (iii) solvent effects, and (iv) the treatment of dispersive interactions. Furthermore (v), the applicability of TD-DFT to excitations of copper(II) bis(chelate) charge-transfer systems is explored by performing many-body perturbation theory (GW + BSE), independent-particle approximation and ΔSCF calculations for a small model system that contains simple guanidine and imine groups. These results show that DFT and TD-DFT in particular in combination with hybrid functionals are well suited for the description of the structural and optical properties, respectively, of copper(II) bis(chelate) complexes. Furthermore, it is found an accurate theoretical geometrical description requires the use of dispersion correction with Becke-Johnson damping and triple-zeta basis sets while solvent effects are small. The hybrid functionals B3LYP and TPSSh yielded best performance. The optical description is best with B3LYP, whereby heavily mixed molecular transitions of MLCT and LLCT character are obtained which can be more easily understood using natural transition orbitals. An natural bond orbital analysis sheds light on the donor properties of the different donor functions and the intraguanidine stabilization during coordination to copper(I) and (II).
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Affiliation(s)
- Alexander Hoffmann
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
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28
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Petrik NG, Monckton RJ, Koehler SPK, Kimmel GA. Electron-stimulated reactions in layered CO/H2O films: Hydrogen atom diffusion and the sequential hydrogenation of CO to methanol. J Chem Phys 2014; 140:204710. [DOI: 10.1063/1.4878658] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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29
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Opalka D, Sprik M. Solute–Solvent Charge-Transfer Excitations and Optical Absorption of Hydrated Hydroxide from Time-Dependent Density-Functional Theory. J Chem Theory Comput 2014; 10:2465-70. [DOI: 10.1021/ct5002889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel Opalka
- Department
of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Michiel Sprik
- Department
of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
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30
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Martiniano HFMC, Galamba N, Cabral BJC. Ab initio calculation of the electronic absorption spectrum of liquid water. J Chem Phys 2014; 140:164511. [PMID: 24784291 DOI: 10.1063/1.4871740] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The electronic absorption spectrum of liquid water was investigated by coupling a one-body energy decomposition scheme to configurations generated by classical and Born-Oppenheimer Molecular Dynamics (BOMD). A Frenkel exciton Hamiltonian formalism was adopted and the excitation energies in the liquid phase were calculated with the equation of motion coupled cluster with single and double excitations method. Molecular dynamics configurations were generated by different approaches. Classical MD were carried out with the TIP4P-Ew and AMOEBA force fields. The BLYP and BLYP-D3 exchange-correlation functionals were used in BOMD. Theoretical and experimental results for the electronic absorption spectrum of liquid water are in good agreement. Emphasis is placed on the relationship between the structure of liquid water predicted by the different models and the electronic absorption spectrum. The theoretical gas to liquid phase blue-shift of the peak positions of the electronic absorption spectrum is in good agreement with experiment. The overall shift is determined by a competition between the O-H stretching of the water monomer in liquid water that leads to a red-shift and polarization effects that induce a blue-shift. The results illustrate the importance of coupling many-body energy decomposition schemes to molecular dynamics configurations to carry out ab initio calculations of the electronic properties in liquid phase.
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Affiliation(s)
- Hugo F M C Martiniano
- Grupo de Física Matemática da Universidade de Lisboa, Av. Professor Gama Pinto 2, 1649-003 Lisboa, Portugal
| | - Nuno Galamba
- Grupo de Física Matemática da Universidade de Lisboa, Av. Professor Gama Pinto 2, 1649-003 Lisboa, Portugal
| | - Benedito J Costa Cabral
- Grupo de Física Matemática da Universidade de Lisboa, Av. Professor Gama Pinto 2, 1649-003 Lisboa, Portugal
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31
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DeSimone AJ, Crowell VD, Sherrill CD, Orlando TM. Mechanisms of H2O desorption from amorphous solid water by 157-nm irradiation: An experimental and theoretical study. J Chem Phys 2013; 139:164702. [DOI: 10.1063/1.4825239] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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32
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Jesser A, Rohrmüller M, Schmidt WG, Herres-Pawlis S. Geometrical and optical benchmarking of copper guanidine-quinoline complexes: Insights from TD-DFT and many-body perturbation theory†. J Comput Chem 2013; 35:1-17. [DOI: 10.1002/jcc.23449] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 08/19/2013] [Accepted: 08/21/2013] [Indexed: 02/04/2023]
Affiliation(s)
- Anton Jesser
- Ludwig-Maximilians-Universität München, Department Chemie; Butenandtstr. 5-13 81377 München Germany
| | - Martin Rohrmüller
- Universität Paderborn, Department Physik Lehrstuhl für Theoretische Physik; Warburger Str. 100, 33095 Paderborn Germany
| | - Wolf Gero Schmidt
- Universität Paderborn, Department Physik Lehrstuhl für Theoretische Physik; Warburger Str. 100, 33095 Paderborn Germany
| | - Sonja Herres-Pawlis
- Ludwig-Maximilians-Universität München, Department Chemie; Butenandtstr. 5-13 81377 München Germany
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33
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Photochemical reaction processes during vacuum-ultraviolet irradiation of water ice. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2013. [DOI: 10.1016/j.jphotochemrev.2013.01.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Cabral do Couto P, Chipman DM. Insights into the ultraviolet spectrum of liquid water from model calculations: the different roles of donor and acceptor hydrogen bonds in water pentamers. J Chem Phys 2013; 137:184301. [PMID: 23163365 DOI: 10.1063/1.4764044] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
With a view toward a better understanding of changes in the peak position and shape of the first absorption band of water with condensation or temperature, results from electronic structure calculations using high level wavefunction based and time-dependent density functional methods are reported for water pentamers. Excitation energies, oscillator strengths, and redistributions of electron density are determined for the quasitetrahedral water pentamer in its C(2v) equilibrium geometry and for many pentamer configurations sampled from molecular simulation of liquid water. Excitations associated with surface molecules are removed in order to focus on those states associated with the central molecule, which are the most representative of the liquid environment. The effect of hydrogen bonding on the lowest excited state associated with the central molecule is studied by adding acceptor or donor hydrogen bonds to tetramer and trimer substructures of the C(2v) pentamer, and by sampling liquid-like configurations having increasing number of acceptor or donor hydrogen bonds of the central molecule. Our results provide clear evidence that the blueshift of excitation energies upon condensation is essentially determined by acceptor hydrogen bonds, and the magnitudes of these shifts are determined by the number of such, whereas donor hydrogen bonds do not induce significant shifts in excitation energies. This qualitatively different role of donor and acceptor hydrogen bonds is understood in terms of the different roles of the 1b(1) monomer molecular orbitals, which establishes an intimate connection between the valence hole and excitation energy shifts. Since the valence hole of the lowest excitation associated with the central molecule is found to be well localized in all liquid-like hydrogen bonding environments, with an average radius of gyration of ~1.6 Å that is much lower than the nearest neighbor O-O distance, a clear and unambiguous connection between hydrogen bonding environments and excitation energy shifts can be established. Based on these results, it is concluded that peak position of the first absorption band is mainly determined by the relative distribution of single and double acceptor hydrogen bonding environments, whereas the shape of the first absorption band is mainly determined by the relative distribution of acceptor and broken acceptor hydrogen bonding environments. The temperature dependence of the peak position and shape of the first absorption band can be readily understood in terms of changes to these relative populations.
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Affiliation(s)
- Paulo Cabral do Couto
- Notre Dame Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, USA
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35
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Rohrmüller M, Herres-Pawlis S, Witte M, Schmidt WG. Bis-μ-oxo and μ-η2:η2-peroxo dicopper complexes studied within (time-dependent) density-functional and many-body perturbation theory. J Comput Chem 2013; 34:1035-45. [DOI: 10.1002/jcc.23230] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 12/13/2012] [Accepted: 12/14/2012] [Indexed: 02/03/2023]
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36
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Ping Y, Rocca D, Galli G. Electronic excitations in light absorbers for photoelectrochemical energy conversion: first principles calculations based on many body perturbation theory. Chem Soc Rev 2013; 42:2437-69. [DOI: 10.1039/c3cs00007a] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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37
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Lorenz M, Maschio L, Schütz M, Usvyat D. Local ab initio methods for calculating optical bandgaps in periodic systems. II. Periodic density fitted local configuration interaction singles method for solids. J Chem Phys 2012. [DOI: 10.1063/1.4767775] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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38
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Killelea DR, Gibson KD, Yuan H, Becker JS, Sibener SJ. Dynamics of the sputtering of water from ice films by collisions with energetic xenon atoms. J Chem Phys 2012; 136:144705. [DOI: 10.1063/1.3699041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Goto T, Ikehata A, Morisawa Y, Higashi N, Ozaki Y. The effect of metal cations on the nature of the first electronic transition of liquid water as studied by attenuated total reflection far-ultraviolet spectroscopy. Phys Chem Chem Phys 2012; 14:8097-104. [DOI: 10.1039/c2cp40633k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Svoboda O, Ončák M, Slavíček P. Simulations of light induced processes in water based on ab initio path integrals molecular dynamics. I. Photoabsorption. J Chem Phys 2011; 135:154301. [DOI: 10.1063/1.3649942] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [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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Hermann A, Schwerdtfeger P. Blueshifting the onset of optical UV absorption for water under pressure. PHYSICAL REVIEW LETTERS 2011; 106:187403. [PMID: 21635126 DOI: 10.1103/physrevlett.106.187403] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 04/11/2011] [Indexed: 05/30/2023]
Abstract
First-principles calculations show that the optical UV absorption onset of solid water is blueshifted with increasing pressure. Across several crystal structures and a wide pressure range, the optical gap increases almost linearly with external pressure, making solid water more transparent. The origin of this unusual effect can be traced back to an increased Stark shift caused by water's electrostatic environment at smaller volumes.
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Affiliation(s)
- Andreas Hermann
- Department of Chemistry, The University of Auckland, Private Bag, New Zealand.
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42
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Lorenz M, Usvyat D, Schütz M. Localab initiomethods for calculating optical band gaps in periodic systems. I. Periodic density fitted local configuration interaction singles method for polymers. J Chem Phys 2011; 134:094101. [DOI: 10.1063/1.3554209] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Andersson S, Arasa C, Yabushita A, Yokoyama M, Hama T, Kawasaki M, Western CM, Ashfold MNR. A theoretical and experimental study on translational and internal energies of H2O and OH from the 157 nm irradiation of amorphous solid water at 90 K. Phys Chem Chem Phys 2011; 13:15810-20. [DOI: 10.1039/c1cp21138b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Iglev H, Fischer MK, Gliserin A, Laubereau A. Ultrafast Geminate Recombination after Photodetachment of Aqueous Hydroxide. J Am Chem Soc 2010; 133:790-5. [DOI: 10.1021/ja103866s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Hristo Iglev
- Physik-Department E11, Technische Universität München, D-85748 Garching, Germany
| | - Martin K. Fischer
- Physik-Department E11, Technische Universität München, D-85748 Garching, Germany
| | - Alexander Gliserin
- Physik-Department E11, Technische Universität München, D-85748 Garching, Germany
| | - Alfred Laubereau
- Physik-Department E11, Technische Universität München, D-85748 Garching, Germany
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45
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He C, Zhang W, Li Y. The glass transition behaviors of low-density amorphous ice films with different thicknesses. J Chem Phys 2010; 133:204504. [DOI: 10.1063/1.3507900] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Rocca D, Lu D, Galli G. Ab initio calculations of optical absorption spectra: Solution of the Bethe–Salpeter equation within density matrix perturbation theory. J Chem Phys 2010; 133:164109. [DOI: 10.1063/1.3494540] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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47
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Cabral do Couto P, Chipman DM. Insights into the ultraviolet spectrum of liquid water from model calculations. J Chem Phys 2010; 132:244307. [PMID: 20590193 DOI: 10.1063/1.3453248] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
With a view toward a better molecular level understanding of the effects of hydrogen bonding on the ultraviolet absorption spectrum of liquid water, benchmark electronic structure calculations using high level wave function based methods and systematically enlarged basis sets are reported for excitation energies and oscillator strengths of valence excited states in the equilibrium water monomer and dimer and in a selection of liquid-like dimer structures. Analysis of the electron density redistribution associated with the two lowest valence excitations of the water dimer shows that these are usually localized on one or the other monomer, although valence hole delocalization can occur for certain relative orientations of the water molecules. The lowest excited state is mostly associated with the hydrogen bond donor and the significantly higher energy second excited state mostly with the acceptor. The magnitude of the lowest excitation energies is strongly dependent on where the valence hole is created, and only to a lesser degree on the perturbation of the excited electron density distribution by the neighboring water molecule. These results suggest that the lowest excitation energies in clusters and liquid water can be associated with broken acceptor hydrogen bonds, which provide energetically favorable locations for the formation of a valence hole. Higher valence excited states of the dimer typically involve delocalization of the valence hole and/or delocalization of the excited electron and/or charge transfer. Two of the higher valence excited states that involve delocalized valence holes always have particularly large oscillator strengths. Due to the pervasive delocalization and charge transfer, it is suggested that most condensed phase water valence excitations intimately involve more than one water molecule and, as a consequence, will not be adequately described by models based on perturbation of free water monomer states. The benchmark calculations are further used to evaluate a series of representative semilocal, global hybrid, and range separated hybrid functionals used in efficient time-dependent density functional methods. It is shown that such an evaluation is only meaningful when comparison is made at or near the complete basis set limit of the wave function based reference method. A functional is found that quantitatively describes the two lowest excitations of water dimer and also provides a semiquantitative description of the higher energy valence excited states. This functional is recommended for use in further studies on the absorption spectrum of large water clusters and of condensed phase water.
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Chen W, Wu X, Car R. X-ray absorption signatures of the molecular environment in water and ice. PHYSICAL REVIEW LETTERS 2010; 105:017802. [PMID: 20867480 DOI: 10.1103/physrevlett.105.017802] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Indexed: 05/29/2023]
Abstract
The x-ray absorption spectra of water and ice are calculated with a many-body approach for electron-hole excitations. The experimental features, including the effects of temperature change in the liquid, are reproduced from configurations generated by ab initio molecular dynamics. The spectral difference between the solid and the liquid is due to two major short-range order effects. One, due to breaking of hydrogen bonds, enhances the pre-edge intensity in the liquid. The other, due to a nonbonded molecular fraction in the first coordination shell, affects the main spectral edge in the conversion of ice to water. This effect may not involve hydrogen bond breaking as shown by experiment in high-density amorphous ice.
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Affiliation(s)
- Wei Chen
- Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
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Vasiliev I, del Puerto ML, Jain M, Lugo-Solis A, Chelikowsky JR. Application of time-dependent density-functional theory to molecules and nanostructures. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2009.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cramer CJ, Truhlar DG. Density functional theory for transition metals and transition metal chemistry. Phys Chem Chem Phys 2009; 11:10757-816. [PMID: 19924312 DOI: 10.1039/b907148b] [Citation(s) in RCA: 1063] [Impact Index Per Article: 70.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We introduce density functional theory and review recent progress in its application to transition metal chemistry. Topics covered include local, meta, hybrid, hybrid meta, and range-separated functionals, band theory, software, validation tests, and applications to spin states, magnetic exchange coupling, spectra, structure, reactivity, and catalysis, including molecules, clusters, nanoparticles, surfaces, and solids.
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Affiliation(s)
- Christopher J Cramer
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455-0431, USA.
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