1
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Guo M, Temperton R, D'Acunto G, Johansson N, Jones R, Handrup K, Ringelband S, Prakash O, Fan H, de Groot LHM, Hlynsson VF, Kaufhold S, Gordivska O, Velásquez González N, Wärnmark K, Schnadt J, Persson P, Uhlig J. Using Iron L-Edge and Nitrogen K-Edge X-ray Absorption Spectroscopy to Improve the Understanding of the Electronic Structure of Iron Carbene Complexes. Inorg Chem 2024; 63:12457-12468. [PMID: 38934422 PMCID: PMC11234367 DOI: 10.1021/acs.inorgchem.4c01026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Iron-centered N-heterocyclic carbene compounds have attracted much attention in recent years due to their long-lived excited states with charge transfer (CT) character. Understanding the orbital interactions between the metal and ligand orbitals is of great importance for the rational tuning of the transition metal compound properties, e.g., for future photovoltaic and photocatalytic applications. Here, we investigate a series of iron-centered N-heterocyclic carbene complexes with +2, + 3, and +4 oxidation states of the central iron ion using iron L-edge and nitrogen K-edge X-ray absorption spectroscopy (XAS). The experimental Fe L-edge XAS data were simulated and interpreted through restricted-active space (RAS) and multiplet calculations. The experimental N K-edge XAS is simulated and compared with time-dependent density functional theory (TDDFT) calculations. Through the combination of the complementary Fe L-edge and N K-edge XAS, direct probing of the complex interplay of the metal and ligand character orbitals was possible. The σ-donating and π-accepting capabilities of different ligands are compared, evaluated, and discussed. The results show how X-ray spectroscopy, together with advanced modeling, can be a powerful tool for understanding the complex interplay of metal and ligand.
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Affiliation(s)
- Meiyuan Guo
- Division of Chemical Physics, Department of Chemistry, Lund University, 22100 Lund, Sweden
| | | | - Giulio D'Acunto
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, 22100 Lund, Sweden
- NanoLund, Lund University, 22100 Lund, Sweden
- Department of Chemical Engineering, Stanford University, 94305 Stanford, California, United States
| | | | - Rosemary Jones
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, 22100 Lund, Sweden
- NanoLund, Lund University, 22100 Lund, Sweden
| | | | - Sven Ringelband
- Division of Chemical Physics, Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Om Prakash
- Centre for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Hao Fan
- Centre for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Lisa H M de Groot
- Centre for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Valtýr Freyr Hlynsson
- Centre for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Simon Kaufhold
- Centre for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Olga Gordivska
- Centre for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, 22100 Lund, Sweden
| | | | - Kenneth Wärnmark
- NanoLund, Lund University, 22100 Lund, Sweden
- Centre for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Joachim Schnadt
- MAX IV Laboratory, Lund University, 22100 Lund, Sweden
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, 22100 Lund, Sweden
- NanoLund, Lund University, 22100 Lund, Sweden
| | - Petter Persson
- NanoLund, Lund University, 22100 Lund, Sweden
- Division of Computational Chemistry, Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Jens Uhlig
- Division of Chemical Physics, Department of Chemistry, Lund University, 22100 Lund, Sweden
- NanoLund, Lund University, 22100 Lund, Sweden
- LINXS Institute of Advanced Neutron and X-Ray Science, Lund University, 22370 Lund, Sweden
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2
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Wang SY, Zhang JR, Guo M, Hua W. Interpreting the Cu-O 2 Antibonding Nature in Two Cu-O 2 Complexes from Cu L-Edge X-ray Absorption Spectra. Inorg Chem 2023; 62:17115-17125. [PMID: 37828769 DOI: 10.1021/acs.inorgchem.3c01896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Cu-O2 structures play important roles in bioinorganic chemistry and enzyme catalysis, where the bonding between the Cu and O2 parts serves as a fundamental research concern. Here, we performed a multiconfigurational study on the copper L2,3-edge X-ray absorption spectra (XAS) of two copper enzyme model complexes to gain a better understanding of the antibonding nature from the clearly interpreted structure-spectroscopy relation. We obtained spectra in good agreement with the experiments by using the restricted active space second-order perturbation theory (RASPT2) method, which facilitated reliable chemical analysis. Spectral feature interpretations were supported by computing the spin-orbit natural transition orbitals. All major features were assigned to be mainly from Cu 2p to antibonding orbitals between Cu 3d and O2 π*, Cu 3d-πO-O* (type A), and a few also to mixed antibonding/bonding orbitals between Cu 3d and O2 π, Cu 3d ± πO-O (type M). Our calculations provided a clear illustration of the interactions between Cu 3d and O2 π*/π orbitals that are carried in the metal L-edge XAS.
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Affiliation(s)
- Sheng-Yu Wang
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Department of Applied Physics, School of Science, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Jun-Rong Zhang
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Department of Applied Physics, School of Science, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Meiyuan Guo
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala 75105, Sweden
| | - Weijie Hua
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Department of Applied Physics, School of Science, Nanjing University of Science and Technology, 210094 Nanjing, China
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3
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Ghosh S, Agarwal H, Galib M, Tran B, Balasubramanian M, Singh N, Fulton JL, Govind N. Near-Quantitative Predictions of the First-Shell Coordination Structure of Hydrated First-Row Transition Metal Ions Using K-Edge X-ray Absorption Near-Edge Spectroscopy. J Phys Chem Lett 2022; 13:6323-6330. [PMID: 35793526 DOI: 10.1021/acs.jpclett.2c01532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The solvation structure of transition metal ions is important for applications in geochemistry, biochemistry, energy storage, and environmental chemistry. We study the X-ray absorption pre-edge and near-edge spectra at the K-edge of a nearly complete series of hydrated first-row transition metal ions with d orbital occupancy from d2 to d10. We optimize all of the structures at the density functional theory (DFT) level with explicit solvation and then compute the pre-edge X-ray absorption spectra with time-dependent DFT (TDDFT) and restricted active space second-order perturbation theory (RASPT2). TDDFT provides accurate results for spectra that are dominated by single excitations, while RASPT2 correctly distinguishes between singly and doubly excited states with quantitative accuracy compared with experiment. We analyze the pre-edge features for each metal ion to reveal the impact of the variations in d orbital occupancy on the first-shell coordination environment. We also report the lowest-energy ligand field d-d transitions using complete active space second-order perturbation theory.
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Affiliation(s)
- Soumen Ghosh
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Harsh Agarwal
- Department of Chemical Engineering and Catalysis Science and Technology Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Mirza Galib
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Ba Tran
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | | | - Nirala Singh
- Department of Chemical Engineering and Catalysis Science and Technology Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - John L Fulton
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Niranjan Govind
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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4
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Sergentu DC, Autschbach J. X-ray absorption spectra of f-element complexes: insight from relativistic multiconfigurational wavefunction theory. Dalton Trans 2022; 51:1754-1764. [PMID: 35022645 DOI: 10.1039/d1dt04075h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
X-ray absorption near edge structure (XANES) spectroscopy, coupled with ab initio calculations, has emerged as the state-of-the-art tool for elucidating the metal-ligand bonding in f-element complexes. This highlight presents recent efforts in calculating XANES spectra of lanthanide and actinide compounds with relativistic multiconfiguration wavefunction approaches that account for differences in donation bonding in the ground state (GS) versus a core-excited state (ES), multiplet effects, and spin-orbit-coupling. With the GS and ES wavefunctions available, including spin-orbit effects, an arsenal of chemical bonding tools that are popular among chemists can be applied to rationalize the observed intensities in terms of covalent bonding.
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Affiliation(s)
- Dumitru-Claudiu Sergentu
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260-3000, USA.
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260-3000, USA.
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Sergentu DC, Autschbach J. Covalency in Actinide(IV) Hexachlorides in Relation to Chlorine K-Edge X-ray Absorption Structure. Chem Sci 2022; 13:3194-3207. [PMID: 35414875 PMCID: PMC8926251 DOI: 10.1039/d1sc06454a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/03/2022] [Indexed: 12/02/2022] Open
Abstract
Chlorine K-edge X-ray absorption near edge structure (XANES) in actinideIV hexachlorides, [AnCl6]2− (An = Th–Pu), is calculated with relativistic multiconfiguration wavefunction theory (WFT). Of particular focus is a 3-peak feature emerging from U toward Pu, and its assignment in terms of donation bonding to the An 5f vs. 6d shells. With or without spin–orbit coupling, the calculated and previously measured XANES spectra are in excellent agreement with respect to relative peak positions, relative peak intensities, and peak assignments. Metal–ligand bonding analyses from WFT and Kohn–Sham theory (KST) predict comparable An 5f and 6d covalency from U to Np and Pu. Although some frontier molecular orbitals in the KST calculations display increasing An 5f–Cl 3p mixing from Th to Pu, because of energetic stabilization of 5f relative to the Cl 3p combinations of the matching symmetry, increasing hybridization is neither seen in the WFT natural orbitals, nor is it reflected in the calculated bond orders. The appearance of the pre-edge peaks from U to Pu and their relative intensities are rationalized simply by the energetic separation of transitions to 6d t2gversus transitions to weakly-bonded and strongly stabilized a2u, t2u and t1u orbitals with 5f character. The study highlights potential pitfalls when interpreting XANES spectra based on ground state Kohn–Sham molecular orbitals. Chlorine K-edge XANES of An(iv) hexachlorides, calculated with multiconfiguration wavefunction theory, is interpreted in terms of similar metal–ligand covalency along the An = Th–Pu series.![]()
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Affiliation(s)
- Dumitru-Claudiu Sergentu
- Department of Chemistry, University at Buffalo State University of New York Buffalo NY 14260-3000 USA
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo State University of New York Buffalo NY 14260-3000 USA
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6
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Polly R, Schacherl B, Rothe J, Vitova T. Relativistic Multiconfigurational Ab Initio Calculation of Uranyl 3d4f Resonant Inelastic X-ray Scattering. Inorg Chem 2021; 60:18764-18776. [PMID: 34818001 PMCID: PMC8693175 DOI: 10.1021/acs.inorgchem.1c02364] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 11/27/2022]
Abstract
We applied relativistic multiconfigurational all-electron ab initio calculations including the spin-orbit interaction to calculate the 3d4f resonant inelastic X-ray scattering (RIXS) map (3d3/2 → 5f5/2 U M4 absorption edge and 4f5/2 → 3d3/2 U Mβ emission) of uranyl (UO22+). The calculated data are in excellent agreement with experimental results and allow a detailed understanding of the observed features and an unambiguous assignment of all involved intermediate and final states. The energies corresponding to the maxima of the resonant emission and the non-resonant (normal) emission were determined with high accuracy, and the corresponding X-ray absorption near edge structure spectra extracted at these two positions were simulated and agree well with the measured data. With the high quality of our theoretical data, we show that the cause of the splitting of the three main peaks in emission is due to the fine structure splitting of the 4f orbitals induced through the trans di-oxo bonds in uranyl and that we are able to obtain direct information about the energy differences between the 5f and 4f orbitals: Δ5f δ/ϕ - 4f δ/ϕ, Δ5f π* - 4f π, and Δ5f σ* - 4f σ from the 3d4f RIXS map. RIXS maps contain a wealth of information, and ab initio calculations facilitate an understanding of their complex structure in a clear and transparent way. With these calculations, we show that the multiconfigurational protocol, which is nowadays applied as a standard tool to study the X-ray spectra of transition metal complexes, can be extended to the calculation of RIXS maps of systems containing actinides.
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Affiliation(s)
- Robert Polly
- Karlsruher Institut für Technologie
(KIT), Institut für Nukleare Entsorgung
(INE), Campus Nord, Postfach
3640, 76021 Karlsruhe, Germany
| | - Bianca Schacherl
- Karlsruher Institut für Technologie
(KIT), Institut für Nukleare Entsorgung
(INE), Campus Nord, Postfach
3640, 76021 Karlsruhe, Germany
| | - Jörg Rothe
- Karlsruher Institut für Technologie
(KIT), Institut für Nukleare Entsorgung
(INE), Campus Nord, Postfach
3640, 76021 Karlsruhe, Germany
| | - Tonya Vitova
- Karlsruher Institut für Technologie
(KIT), Institut für Nukleare Entsorgung
(INE), Campus Nord, Postfach
3640, 76021 Karlsruhe, Germany
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7
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Jenkins AJ, Hu H, Lu L, Frisch MJ, Li X. Two-Component Multireference Restricted Active Space Configuration Interaction for the Computation of L-Edge X-ray Absorption Spectra. J Chem Theory Comput 2021; 18:141-150. [PMID: 34908414 DOI: 10.1021/acs.jctc.1c00564] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
X-ray absorption spectroscopy is a powerful probe of local electronic and nuclear structures, providing insights into chemical processes. The theoretical prediction and interpretation of metal L-edge X-ray absorption spectra are complicated by both relativistic effects, including spin-orbit coupling and the multiconfigurational nature of the states involved. This work details an exact two-component multireference restricted active space (RAS) configuration interaction scheme that uses an exact two-component state-averaged complete active space self-consistent-field method, which includes the spin-orbit coupling in a variational manner, for the accurate description of the electronic structure before using a RAS configuration interaction method to describe the core excited states of the X-ray spectrum. Benchmark calculations are presented for a series of iron-containing complexes, with results showing key features of the spectrum being reproduced, including ligand-to-metal charge transfer and shake-up excitations.
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Affiliation(s)
- Andrew J Jenkins
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Hang Hu
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
| | - Lixin Lu
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Michael J Frisch
- Gaussian Inc., 340 Quinnipiac Street, Building 40, Wallingford, Connecticut 06492, United States
| | - Xiaosong Li
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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8
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Temperton RH, Guo M, D'Acunto G, Johansson N, Rosemann NW, Prakash O, Wärnmark K, Schnadt J, Uhlig J, Persson P. Resonant X-ray photo-oxidation of light-harvesting iron (II/III) N-heterocyclic carbene complexes. Sci Rep 2021; 11:22144. [PMID: 34772983 PMCID: PMC8590020 DOI: 10.1038/s41598-021-01509-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/25/2021] [Indexed: 11/12/2022] Open
Abstract
Two photoactive iron N-heterocyclic carbene complexes \documentclass[12pt]{minimal}
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\begin{document}$${[\hbox {Fe}^{{{\rm{II}}}}(\hbox {btz})_2(\hbox {bpy})]^{2+}}$$\end{document}[FeII(btz)2(bpy)]2+ and \documentclass[12pt]{minimal}
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\begin{document}$${[\hbox {Fe}^{{\rm{III}}}(\hbox {btz})_3]^{3+}}$$\end{document}[FeIII(btz)3]3+, where btz is 3,3’-dimethyl-1,1’-bis(p-tolyl)-4,4’-bis(1,2,3-triazol-5-ylidene) and bpy is 2,2’-bipyridine, have been investigated by Resonant Photoelectron Spectroscopy (RPES). Tuning the incident X-ray photon energy to match core-valence excitations provides a site specific probe of the electronic structure properties and ligand-field interactions, as well as information about the resonantly photo-oxidised final states. Comparing measurements of the Fe centre and the surrounding ligands demonstrate strong mixing of the Fe \documentclass[12pt]{minimal}
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\begin{document}$${\hbox {t}_{{\rm{2g}}}}$$\end{document}t2g levels with occupied ligand \documentclass[12pt]{minimal}
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\begin{document}$$\pi$$\end{document}π orbitals but weak mixing with the corresponding unoccupied ligand orbitals. This highlights the importance of \documentclass[12pt]{minimal}
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\begin{document}$$\pi$$\end{document}π-accepting and -donating considerations in ligand design strategies for photofunctional iron carbene complexes. Spin-propensity is also observed as a final-state effect in the RPES measurements of the open-shell \documentclass[12pt]{minimal}
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\begin{document}$$\hbox {Fe}^{{\rm{III}}}$$\end{document}FeIII complex. Vibronic coupling is evident in both complexes, where the energy dispersion hints at a vibrationally hot final state. The results demonstrate the significant impact of the iron oxidation state on the frontier electronic structure and highlights the differences between the emerging class of \documentclass[12pt]{minimal}
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\begin{document}$$\hbox {Fe}^{{\rm{III}}}$$\end{document}FeIII photosensitizers from those of more traditional \documentclass[12pt]{minimal}
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\begin{document}$$\hbox {Fe}^{{\rm{II}}}$$\end{document}FeII complexes.
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Affiliation(s)
- Robert H Temperton
- MAX IV Laboratory, Lund University, Box 118, 221 00, Lund, Sweden.,School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK.,Lund Institute of Advanced Neutron and X-ray Science, IDEON Building: Delta 5, Scheelevägen 19, 223 70, Lund, Sweden
| | - Meiyuan Guo
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden
| | - Giulio D'Acunto
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 221 00, Lund, Sweden
| | - Niclas Johansson
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 221 00, Lund, Sweden
| | - Nils W Rosemann
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden
| | - Om Prakash
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, Box 124, 221 00, Lund, Sweden
| | - Kenneth Wärnmark
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, Box 124, 221 00, Lund, Sweden
| | - Joachim Schnadt
- MAX IV Laboratory, Lund University, Box 118, 221 00, Lund, Sweden. .,Lund Institute of Advanced Neutron and X-ray Science, IDEON Building: Delta 5, Scheelevägen 19, 223 70, Lund, Sweden. .,Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 221 00, Lund, Sweden.
| | - Jens Uhlig
- Lund Institute of Advanced Neutron and X-ray Science, IDEON Building: Delta 5, Scheelevägen 19, 223 70, Lund, Sweden. .,Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden.
| | - Petter Persson
- Lund Institute of Advanced Neutron and X-ray Science, IDEON Building: Delta 5, Scheelevägen 19, 223 70, Lund, Sweden. .,Division of Theoretical Chemistry, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden.
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9
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Rott F, Reduzzi M, Schnappinger T, Kobayashi Y, Chang KF, Timmers H, Neumark DM, de Vivie-Riedle R, Leone SR. Ultrafast strong-field dissociation of vinyl bromide: An attosecond transient absorption spectroscopy and non-adiabatic molecular dynamics study. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2021; 8:034104. [PMID: 34169117 PMCID: PMC8208825 DOI: 10.1063/4.0000102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/24/2021] [Indexed: 06/13/2023]
Abstract
Attosecond extreme ultraviolet (XUV) and soft x-ray sources provide powerful new tools for studying ultrafast molecular dynamics with atomic, state, and charge specificity. In this report, we employ attosecond transient absorption spectroscopy (ATAS) to follow strong-field-initiated dynamics in vinyl bromide. Probing the Br M edge allows one to assess the competing processes in neutral and ionized molecular species. Using ab initio non-adiabatic molecular dynamics, we simulate the neutral and cationic dynamics resulting from the interaction of the molecule with the strong field. Based on the dynamics results, the corresponding time-dependent XUV transient absorption spectra are calculated by applying high-level multi-reference methods. The state-resolved analysis obtained through the simulated dynamics and related spectral contributions enables a detailed and quantitative comparison with the experimental data. The main outcome of the interaction with the strong field is unambiguously the population of the first three cationic states, D 1, D 2, and D 3. The first two show exclusively vibrational dynamics while the D 3 state is characterized by an ultrafast dissociation of the molecule via C-Br bond rupture within 100 fs in 50% of the analyzed trajectories. The combination of the three simulated ionic transient absorption spectra is in excellent agreement with the experimental results. This work establishes ATAS in combination with high-level multi-reference simulations as a spectroscopic technique capable of resolving coupled non-adiabatic electronic-nuclear dynamics in photoexcited molecules with sub-femtosecond resolution.
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Affiliation(s)
- Florian Rott
- Department of Chemistry, LMU Munich, 81377 Munich, Germany
| | - Maurizio Reduzzi
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | | | - Yuki Kobayashi
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Kristina F. Chang
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Henry Timmers
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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10
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Ren J, Lin L, Lieutenant K, Schulz C, Wong D, Gimm T, Bande A, Wang X, Petit T. Role of Dopants on the Local Electronic Structure of Polymeric Carbon Nitride Photocatalysts. SMALL METHODS 2021; 5:e2000707. [PMID: 34927893 DOI: 10.1002/smtd.202000707] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/02/2020] [Indexed: 06/14/2023]
Abstract
Polymeric carbon nitride (PCN) is a promising class of materials for solar-to-chemical energy conversion. The increase of the photocatalytic activity of PCN is often achieved by the incorporation of heteroatoms, whose impact on the electronic structure of PCN remains poorly explored. This work reveals that the local electronic structure of PCN is strongly altered by doping with sulfur and iron using X-ray absorption spectroscopy (XAS) and resonant inelastic X-ray scattering (RIXS). From XAS at the carbon and nitrogen K-edges, sulfur atoms are found to mostly affect carbon atoms, in contrast to iron doping mostly altering nitrogen sites. In RIXS at the nitrogen K-edge, a vibrational progression, affected by iron doping, is evidenced, which is attributed to a vibronic coupling between excited electrons in nitrogen atoms and C-N stretching modes in PCN heterocycling rings. This work opens new perspectives for the characterization of vibronic coupling in polymeric photocatalysts.
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Affiliation(s)
- Jian Ren
- Institute for Nanospectroscopy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, Berlin, 12489, Germany
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Lihua Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
| | - Klaus Lieutenant
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, Berlin, 12489, Germany
| | - Christian Schulz
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, Berlin, 12489, Germany
| | - Deniz Wong
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, Berlin, 12489, Germany
| | - Thorren Gimm
- Joint Research Group Simulation of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, Berlin, 14109, Germany
| | - Annika Bande
- Young Investigator Group Theory of Electron Dynamics and Spectroscopy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, Berlin, 14109, Germany
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
| | - Tristan Petit
- Institute for Nanospectroscopy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, Berlin, 12489, Germany
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11
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Allehyani BH, Hassan WI, Aziz SG, Hilal RH, Kühn O, Bokarev SI. Solvation and speciation of cobalt(II). A theoretical X-ray absorption and RIXS study. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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12
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Ganguly G, Sergentu D, Autschbach J. Ab Initio Analysis of Metal–Ligand Bonding in An(COT)
2
with An=Th, U in Their Ground‐ and Core‐Excited States. Chemistry 2020; 26:1776-1788. [DOI: 10.1002/chem.201904166] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/15/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Gaurab Ganguly
- Department of Chemistry University at Buffalo State University of New York Buffalo NY 14260-3000 USA
| | - Dumitru‐Claudiu Sergentu
- Department of Chemistry University at Buffalo State University of New York Buffalo NY 14260-3000 USA
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo State University of New York Buffalo NY 14260-3000 USA
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13
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Guo M, Liu X, He R. Restricted active space simulations of the metal L-edge X-ray absorption spectra and resonant inelastic X-ray scattering: revisiting [CoII/III(bpy)3]2+/3+complexes. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00148a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The metal L-edge spectra of cobalt compounds have been interpreted through restricted active space calculations.
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Affiliation(s)
- Meiyuan Guo
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Xiaorui Liu
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Rongxing He
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
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14
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Bokarev SI, Kühn O. Theoretical X‐ray spectroscopy of transition metal compounds. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2019. [DOI: 10.1002/wcms.1433] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Oliver Kühn
- Institut für Physik Universität Rostock Rostock Germany
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15
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Multiconfigurational Approach to X-ray Spectroscopy of Transition Metal Complexes. TRANSITION METALS IN COORDINATION ENVIRONMENTS 2019. [DOI: 10.1007/978-3-030-11714-6_7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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16
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Sergentu DC, Duignan TJ, Autschbach J. Ab Initio Study of Covalency in the Ground versus Core-Excited States and X-ray Absorption Spectra of Actinide Complexes. J Phys Chem Lett 2018; 9:5583-5591. [PMID: 30180572 DOI: 10.1021/acs.jpclett.8b02412] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Relativistic multireference ab initio wave function calculations within the restricted active space (RAS) framework were performed to calculate metal and ligand X-ray absorption (XAS) near-edge spectroscopy (XANES) intensities for the metal M4,5 edges of [PuO2(H2O)5]2+, [AnVIO2]2+ (An = U, Np, Pu), and [AmCl6]3- and the Cl K edge of the Am complex. The extent of An(5f)-ligand bonding was determined via natural localized molecular orbital analyses of the relevant spin-orbit coupled multireference states. The calculated spectra are in good agreement with experiments and allow a detailed assignment of the observed spectral features. The XANES M4,5-edge spectra are representative of the actinide orbital covalency in the probed core-excited states, which may be different from the ground-state covalency. An assignment of ground-state An orbital covalency based on XAS spectra should therefore be made with caution.
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Affiliation(s)
- Dumitru-Claudiu Sergentu
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
| | - Thomas J Duignan
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
| | - Jochen Autschbach
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
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17
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Nappini S, Matruglio A, Naumenko D, Dal Zilio S, Bondino F, Lazzarino M, Magnano E. Graphene nanobubbles on TiO 2 for in-operando electron spectroscopy of liquid-phase chemistry. NANOSCALE 2017; 9:4456-4466. [PMID: 28304018 DOI: 10.1039/c6nr09061c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
X-Ray Photoelectron Spectroscopy (XPS) and X-Ray Absorption Spectroscopy (XAS) provide unique knowledge on the electronic structure and chemical properties of materials. Unfortunately this information is scarce when investigating solid/liquid interfaces and chemical or photochemical reactions under ambient conditions because of the short electron inelastic mean free path (IMFP) that requires a vacuum environment, which poses serious limitation on the application of XPS and XAS to samples present in the atmosphere or in the presence of a solvent. One promising approach is the use of graphene (Gr) windows transparent to both photons and electrons. This paper proposes an innovative system based on sealed Gr nanobubbles (GNBs) on a titanium dioxide TiO2 (100) rutile single crystal filled with the solution of interest during the fabrication stage. The GNBs were successfully employed to follow in-operando the thermal-induced reduction of FeCl3 to FeCl2 in aqueous solution. The electronic states of chlorine, iron and oxygen were obtained through a combination of electron spectroscopy methods (XPS and XAS) in different phases of the process. The interaction of various components in solution with solid surfaces constituting the cell was obtained, also highlighting the formation of a covalent C-Cl bond in the Gr structure. For the easiness of GNB fabrication and straightforward extension to a large variety of solutions, we envisage a broad application of the proposed approach to investigate in detail electronic mechanisms that regulate liquid/solid electron transfer in catalytic and energy conversion related applications.
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Affiliation(s)
- S Nappini
- IOM-CNR, Laboratorio TASC, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
| | - A Matruglio
- IOM-CNR, Laboratorio TASC, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy. and University of Trieste, Graduate School of Nanotechnology, Piazzale Europa 1, 34127 Trieste, Italy
| | - D Naumenko
- IOM-CNR, Laboratorio TASC, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
| | - S Dal Zilio
- IOM-CNR, Laboratorio TASC, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
| | - F Bondino
- IOM-CNR, Laboratorio TASC, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
| | - M Lazzarino
- IOM-CNR, Laboratorio TASC, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
| | - E Magnano
- IOM-CNR, Laboratorio TASC, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy. and Department of Physics, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa
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18
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Wang H, Bokarev SI, Aziz SG, Kühn O. Density matrix-based time-dependent configuration interaction approach to ultrafast spin-flip dynamics. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1294267] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Huihui Wang
- Institut für Physik, Universität Rostock , Rostock, Germany
| | | | - Saadullah G. Aziz
- Chemistry Department, Faculty of Science, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Oliver Kühn
- Institut für Physik, Universität Rostock , Rostock, Germany
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19
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Kunnus K, Josefsson I, Schreck S, Quevedo W, Miedema P, Techert S, de Groot F, Föhlisch A, Odelius M, Wernet P. Quantifying covalent interactions with resonant inelastic soft X-ray scattering: Case study of Ni2+ aqua complex. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2016.12.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Wang H, Bokarev SI, Aziz SG, Kühn O. Ultrafast Spin-State Dynamics in Transition-Metal Complexes Triggered by Soft-X-Ray Light. PHYSICAL REVIEW LETTERS 2017; 118:023001. [PMID: 28128607 DOI: 10.1103/physrevlett.118.023001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Indexed: 06/06/2023]
Abstract
Recent advances in attosecond physics provide access to the correlated motion of valence and core electrons on their intrinsic timescales. For valence excitations, processes related to the electron spin are usually driven by nuclear motion. For core-excited states, where the core hole has a nonzero angular momentum, spin-orbit coupling is strong enough to drive spin flips on a much shorter time scale. Here, unprecedented short spin crossover is demonstrated for L-edge (2p→3d) excited states of a prototypical Fe(II) complex. It occurs on a time scale, which is faster than the core-hole lifetime of about 4 fs and can be manipulated by the excitation conditions. A detailed analysis of such phenomena will help to gain a fundamental understanding of spin-crossover processes and establish the basis for their control by light.
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Affiliation(s)
- Huihui Wang
- Institut für Physik, Universität Rostock, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
| | - Sergey I Bokarev
- Institut für Physik, Universität Rostock, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
| | - Saadullah G Aziz
- Chemistry Department, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Oliver Kühn
- Institut für Physik, Universität Rostock, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
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21
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Bokarev S, Hilal R, Aziz S, Kühn O. Soft X-ray spectroscopy of transition metal compounds: a theoretical perspective. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201713202004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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Preuße M, Bokarev SI, Aziz SG, Kühn O. Towards an ab initio theory for metal L-edge soft X-ray spectroscopy of molecular aggregates. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2016; 3:062601. [PMID: 27679809 PMCID: PMC5010561 DOI: 10.1063/1.4961953] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/03/2016] [Indexed: 06/06/2023]
Abstract
The Frenkel exciton model was adapted to describe X-ray absorption and resonant inelastic scattering spectra of polynuclear transition metal complexes by means of the restricted active space self-consistent field method. The proposed approach allows to substantially decrease the requirements on computational resources if compared to a full supermolecular quantum chemical treatment. This holds true, in particular, in cases where the dipole approximation to the electronic transition charge density can be applied. The computational protocol was applied to the calculation of X-ray spectra of the hemin complex, which forms dimers in aqueous solution. The aggregation effects were found to be comparable to the spectral alterations due to the replacement of the axial ligand by solvent molecules.
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Affiliation(s)
- Marie Preuße
- Institut für Physik, Universität Rostock , Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
| | - Sergey I Bokarev
- Institut für Physik, Universität Rostock , Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
| | - Saadullah G Aziz
- Chemistry Department, Faculty of Science, King Abdulaziz University , 21589 Jeddah, Saudi Arabia
| | - Oliver Kühn
- Institut für Physik, Universität Rostock , Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
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23
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Hua W, Bennett K, Zhang Y, Luo Y, Mukamel S. Study of double core hole excitations in molecules by X-ray double-quantum-coherence signals: a multi-configuration simulation. Chem Sci 2016; 7:5922-5933. [PMID: 30034734 PMCID: PMC6022231 DOI: 10.1039/c6sc01571a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 05/11/2016] [Indexed: 12/02/2022] Open
Abstract
The multi-configurational self-consistent field method is employed to simulate the two-dimensional all-X-ray double-quantum-coherence (XDQC) spectroscopy, a four-wave mixing signal that provides direct signatures of double core hole (DCH) states. The valence electronic structure is probed by capturing the correlation between the single (SCH) and double core hole states. The state-averaged restricted-active-space self-consistent field (SA-RASSCF) approach is used which can treat the valence, SCH, and DCH states at the same theoretical level, and applies to all types of DCHs (located on one or two atoms, K-edge or L-edge), with both accuracy and efficiency. Orbital relaxation introduced by the core hole(s) and the static electron correlation is properly accounted for. The XDQC process can take place via different intermediate DCH state channels by tuning the pulse frequencies. We simulate the XDQC signals for the three isomers of aminophenol at 8 pulse frequency configurations, covering all DCH pathways involving the N1s and O1s core hole (N1sN1s, O1sO1s and N1sO1s), which reveal different patterns of valence excitations.
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Affiliation(s)
- Weijie Hua
- Department of Chemistry , University of California , Irvine , CA 92697-2025 , USA .
- Department of Theoretical Chemistry and Biology , School of Biotechnology , KTH Royal Institute of Technology , S-10691 Stockholm , Sweden
| | - Kochise Bennett
- Department of Chemistry , University of California , Irvine , CA 92697-2025 , USA .
| | - Yu Zhang
- Department of Chemistry , University of California , Irvine , CA 92697-2025 , USA .
| | - Yi Luo
- Department of Theoretical Chemistry and Biology , School of Biotechnology , KTH Royal Institute of Technology , S-10691 Stockholm , Sweden
- Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Shaul Mukamel
- Department of Chemistry , University of California , Irvine , CA 92697-2025 , USA .
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24
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Guo M, Källman E, Sørensen LK, Delcey MG, Pinjari RV, Lundberg M. Molecular Orbital Simulations of Metal 1s2p Resonant Inelastic X-ray Scattering. J Phys Chem A 2016; 120:5848-55. [DOI: 10.1021/acs.jpca.6b05139] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meiyuan Guo
- Department
of Chemistry−Ångström
Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Erik Källman
- Department
of Chemistry−Ångström
Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Lasse Kragh Sørensen
- Department
of Chemistry−Ångström
Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Mickaël G. Delcey
- Department
of Chemistry−Ångström
Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Rahul V. Pinjari
- Department
of Chemistry−Ångström
Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Marcus Lundberg
- Department
of Chemistry−Ångström
Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
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25
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Golnak R, Xiao J, Atak K, Unger I, Seidel R, Winter B, Aziz EF. Undistorted X-ray Absorption Spectroscopy Using s-Core-Orbital Emissions. J Phys Chem A 2016; 120:2808-14. [PMID: 27101344 DOI: 10.1021/acs.jpca.6b01699] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Detection of secondary emissions, fluorescence yield (FY), or electron yield (EY), originating from the relaxation processes upon X-ray resonant absorption has been widely adopted for X-ray absorption spectroscopy (XAS) measurements when the primary absorption process cannot be probed directly in transmission mode. Various spectral distortion effects inherent in the relaxation processes and in the subsequent transportation of emitted particles (electron or photon) through the sample, however, undermine the proportionality of the emission signals to the X-ray absorption coefficient. In the present study, multiple radiative (FY) and nonradiative (EY) decay channels have been experimentally investigated on a model system, FeCl3 aqueous solution, at the excitation energy of the Fe L-edge. The systematic comparisons between the experimental spectra taken from various decay channels, as well as the comparison with the theoretically simulated Fe L-edge XA spectrum that involves only the absorption process, indicate that the detection of the Fe 3s → 2p partial fluorescence yield (PFY) gives rise to the true Fe L-edge XA spectrum. The two key characteristics generalized from this particular decay channel-zero orbital angular momentum (i.e., s orbital) and core-level emission-set a guideline for obtaining undistorted X-ray absorption spectra in the future.
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Affiliation(s)
- Ronny Golnak
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany.,Department of Chemistry, Free University Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Jie Xiao
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Kaan Atak
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany.,Department of Physics, Free University Berlin , Arnimallee 14, 14195 Berlin, Germany
| | - Isaak Unger
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Robert Seidel
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Bernd Winter
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Emad F Aziz
- Institute of Methods for Material Development, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) , Albert-Einstein-Strasse 15, D-12489 Berlin, Germany.,Department of Physics, Free University Berlin , Arnimallee 14, 14195 Berlin, Germany
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26
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Joint Analysis of Radiative and Non-Radiative Electronic Relaxation Upon X-ray Irradiation of Transition Metal Aqueous Solutions. Sci Rep 2016; 6:24659. [PMID: 27098342 PMCID: PMC4838826 DOI: 10.1038/srep24659] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 04/01/2016] [Indexed: 11/09/2022] Open
Abstract
L-edge soft X-ray spectroscopy has been proven to be a powerful tool to unravel the peculiarities of electronic structure of transition metal compounds in solution. However, the X-ray absorption spectrum is often probed in the total or partial fluorescence yield modes, what leads to inherent distortions with respect to the true transmission spectrum. In the present work, we combine photon- and electron-yield experimental techniques with multi-reference first principles calculations. Exemplified for the prototypical FeCl2 aqueous solution we demonstrate that the partial yield arising from the Fe3s → 2p relaxation is a more reliable probe of the absorption spectrum than the Fe3d → 2p one. For the bonding-relevant 3d → 2p channel we further provide the basis for the joint analysis of resonant photoelectron and inelastic X-ray scattering spectra. Establishing the common energy reference allows to assign both spectra using the complementary information provided through electron-out and photon-out events.
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27
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Golnak R, Xiao J, Pohl M, Schwanke C, Neubauer A, Lange KM, Atak K, Aziz EF. Influence of the Outer Ligands on Metal-to-Ligand Charge Transfer in Solvated Manganese Porphyrins. Inorg Chem 2015; 55:22-8. [DOI: 10.1021/acs.inorgchem.5b01585] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ronny Golnak
- Department of Chemistry, Free University Berlin, Takustrasse 3, 14195 Berlin, Germany
| | | | | | | | | | | | - Kaan Atak
- Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Emad F. Aziz
- Department of Physics, Free University Berlin, Arnimallee 14, 14195 Berlin, Germany
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28
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Grell G, Bokarev SI, Winter B, Seidel R, Aziz EF, Aziz SG, Kühn O. Multi-reference approach to the calculation of photoelectron spectra including spin-orbit coupling. J Chem Phys 2015; 143:074104. [PMID: 26298112 DOI: 10.1063/1.4928511] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
X-ray photoelectron spectra provide a wealth of information on the electronic structure. The extraction of molecular details requires adequate theoretical methods, which in case of transition metal complexes has to account for effects due to the multi-configurational and spin-mixed nature of the many-electron wave function. Here, the restricted active space self-consistent field method including spin-orbit coupling is used to cope with this challenge and to calculate valence- and core-level photoelectron spectra. The intensities are estimated within the frameworks of the Dyson orbital formalism and the sudden approximation. Thereby, we utilize an efficient computational algorithm that is based on a biorthonormal basis transformation. The approach is applied to the valence photoionization of the gas phase water molecule and to the core ionization spectrum of the [Fe(H2O)6](2+) complex. The results show good agreement with the experimental data obtained in this work, whereas the sudden approximation demonstrates distinct deviations from experiments.
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Affiliation(s)
- Gilbert Grell
- Institut für Physik, Universität Rostock, D-18051 Rostock, Germany
| | - Sergey I Bokarev
- Institut für Physik, Universität Rostock, D-18051 Rostock, Germany
| | - Bernd Winter
- Helmholtz-Zentrum Berlin für Materialien und Energie, Methods for Material Development, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Robert Seidel
- Helmholtz-Zentrum Berlin für Materialien und Energie, Methods for Material Development, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Emad F Aziz
- Helmholtz-Zentrum Berlin für Materialien und Energie, Methods for Material Development, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - Saadullah G Aziz
- Chemistry Department, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Oliver Kühn
- Institut für Physik, Universität Rostock, D-18051 Rostock, Germany
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29
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Pinjari RV, Delcey MG, Guo M, Odelius M, Lundberg M. Cost and sensitivity of restricted active-space calculations of metal L-edge X-ray absorption spectra. J Comput Chem 2015; 37:477-86. [DOI: 10.1002/jcc.24237] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/24/2015] [Accepted: 10/02/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Rahul V. Pinjari
- Department of Chemistry - Ångström laboratory; Uppsala University; SE-75120 Uppsala Sweden
| | - Mickaël G. Delcey
- Department of Chemistry - Ångström laboratory; Uppsala University; SE-75120 Uppsala Sweden
| | - Meiyuan Guo
- Department of Chemistry - Ångström laboratory; Uppsala University; SE-75120 Uppsala Sweden
| | - Michael Odelius
- Department of Physics; AlbaNova University Center, Stockholm University; SE-106 91 Stockholm Sweden
| | - Marcus Lundberg
- Department of Chemistry - Ångström laboratory; Uppsala University; SE-75120 Uppsala Sweden
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30
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Zhang N, Brugger J, Etschmann B, Ngothai Y, Zeng D. Thermodynamic modeling of poorly complexing metals in concentrated electrolyte solutions: an X-ray absorption and UV-Vis spectroscopic study of Ni(II) in the NiCl2-MgCl2-H2O system. PLoS One 2015; 10:e0119805. [PMID: 25885410 PMCID: PMC4401718 DOI: 10.1371/journal.pone.0119805] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 01/16/2015] [Indexed: 11/18/2022] Open
Abstract
Knowledge of the structure and speciation of aqueous Ni(II)-chloride complexes is important for understanding Ni behavior in hydrometallurgical extraction. The effect of concentration on the first-shell structure of Ni(II) in aqueous NiCl2 and NiCl2-MgCl2 solutions was investigated by Ni K edge X-ray absorption (XAS) and UV-Vis spectroscopy at ambient conditions. Both techniques show that no large structural change (e.g., transition from octahedral to tetrahedral-like configuration) occurs. Both methods confirm that the Ni(II) aqua ion (with six coordinated water molecules at RNi-O = 2.07(2) Å) is the dominant species over the whole NiCl2 concentration range. However, XANES, EXAFS and UV-Vis data show subtle changes at high salinity (> 2 mol∙kg-1 NiCl2), which are consistent with the formation of small amounts of the NiCl+ complex (up to 0.44(23) Cl at a Ni-Cl distance of 2.35(2) Å in 5.05 mol∙kg-1 NiCl2) in the pure NiCl2 solutions. At high Cl:Ni ratio in the NiCl2-MgCl2-H2O solutions, small amounts of [NiCl2]0 are also present. We developed a speciation-based mixed-solvent electrolyte (MSE) model to describe activity-composition relationships in NiCl2-MgCl2-H2O solutions, and at the same time predict Ni(II) speciation that is consistent with our XAS and UV-Vis data and with existing literature data up to the solubility limit, resolving a long-standing uncertainty about the role of chloride complexing in this system.
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Affiliation(s)
- Ning Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
- School of Chemical Engineering, The University of Adelaide, Adelaide 5000, South Australia, Australia
- School of Geosciences, Monash University, Clayton 3800, Victoria, Australia
| | - Joël Brugger
- Division of Mineralogy, South Australian Museum, Adelaide 5000, South Australia, Australia
- School of Geosciences, Monash University, Clayton 3800, Victoria, Australia
- * E-mail: (JB); (DZ)
| | - Barbara Etschmann
- School of Chemical Engineering, The University of Adelaide, Adelaide 5000, South Australia, Australia
- Division of Mineralogy, South Australian Museum, Adelaide 5000, South Australia, Australia
- School of Geosciences, Monash University, Clayton 3800, Victoria, Australia
| | - Yung Ngothai
- School of Chemical Engineering, The University of Adelaide, Adelaide 5000, South Australia, Australia
| | - Dewen Zeng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
- * E-mail: (JB); (DZ)
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Pinjari RV, Delcey MG, Guo M, Odelius M, Lundberg M. Restricted active space calculations of L-edge X-ray absorption spectra: From molecular orbitals to multiplet states. J Chem Phys 2014; 141:124116. [DOI: 10.1063/1.4896373] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Rahul V. Pinjari
- Department of Chemistry - Ångström Laboratory, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Mickaël G. Delcey
- Department of Chemistry - Ångström Laboratory, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Meiyuan Guo
- Department of Chemistry - Ångström Laboratory, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Michael Odelius
- Department of Physics, Stockholm University, AlbaNova University Center, SE-106 91 Stockholm, Sweden
| | - Marcus Lundberg
- Department of Chemistry - Ångström Laboratory, Uppsala University, SE-751 20 Uppsala, Sweden
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33
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Atak K, Golnak R, Xiao J, Suljoti E, Pflüger M, Brandenburg T, Winter B, Aziz EF. Electronic Structure of Hemin in Solution Studied by Resonant X-ray Emission Spectroscopy and Electronic Structure Calculations. J Phys Chem B 2014; 118:9938-43. [DOI: 10.1021/jp505129m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kaan Atak
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Ronny Golnak
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Chemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Jie Xiao
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
| | - Edlira Suljoti
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
| | - Mika Pflüger
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Tim Brandenburg
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Bernd Winter
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
| | - Emad F. Aziz
- Joint
Laboratory for Ultrafast Dynamics in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, 12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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34
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Xiao J, Golnak R, Atak K, Pflüger M, Pohl M, Suljoti E, Winter B, Aziz EF. Assistance of the Iron Porphyrin Ligands to the Binding Interaction between the Fe Center and Small Molecules in Solution. J Phys Chem B 2014; 118:9371-7. [DOI: 10.1021/jp5023339] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Xiao
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Ronny Golnak
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Biologie, Chemie, Pharmazie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Kaan Atak
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Mika Pflüger
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Marvin Pohl
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Edlira Suljoti
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Bernd Winter
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
| | - Emad F. Aziz
- Joint
Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse
15, D-12489 Berlin, Germany
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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35
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Bokarev SI, Dantz M, Suljoti E, Atak K, Winter B, Kühn O, Aziz EF. Bokarev et al. Reply. PHYSICAL REVIEW LETTERS 2014; 112:129303. [PMID: 24724688 DOI: 10.1103/physrevlett.112.129303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Indexed: 05/03/2023]
Affiliation(s)
- S I Bokarev
- Institut für Physik, Universität Rostock, Universitätsplatz 3, D-18055 Rostock, Germany
| | - M Dantz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany and Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
| | - E Suljoti
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany and Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
| | - K Atak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany and Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
| | - B Winter
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - O Kühn
- Institut für Physik, Universität Rostock, Universitätsplatz 3, D-18055 Rostock, Germany
| | - E F Aziz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany and Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
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36
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Engel N, Bokarev SI, Suljoti E, Garcia-Diez R, Lange KM, Atak K, Golnak R, Kothe A, Dantz M, Kühn O, Aziz EF. Chemical Bonding in Aqueous Ferrocyanide: Experimental and Theoretical X-ray Spectroscopic Study. J Phys Chem B 2014; 118:1555-63. [DOI: 10.1021/jp411782y] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Nicholas Engel
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Sergey I. Bokarev
- Institut
für
Physik, Universität Rostock, Universitätsplatz 3, 18055 Rostock, Germany
| | - Edlira Suljoti
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Raul Garcia-Diez
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Kathrin M. Lange
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Kaan Atak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Ronny Golnak
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Alexander Kothe
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Marcus Dantz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Oliver Kühn
- Institut
für
Physik, Universität Rostock, Universitätsplatz 3, 18055 Rostock, Germany
| | - Emad F. Aziz
- Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq) at Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
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37
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Zhang Y, Hua W, Bennett K, Mukamel S. Nonlinear Spectroscopy of Core and Valence Excitations Using Short X-Ray Pulses: Simulation Challenges. DENSITY-FUNCTIONAL METHODS FOR EXCITED STATES 2014; 368:273-345. [DOI: 10.1007/128_2014_618] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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38
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Kunnus K, Josefsson I, Schreck S, Quevedo W, Miedema PS, Techert S, de Groot FMF, Odelius M, Wernet P, Föhlisch A. From Ligand Fields to Molecular Orbitals: Probing the Local Valence Electronic Structure of Ni2+ in Aqueous Solution with Resonant Inelastic X-ray Scattering. J Phys Chem B 2013; 117:16512-21. [DOI: 10.1021/jp4100813] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kristjan Kunnus
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Institut
für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str.
24/25, 14476 Potsdam, Germany
| | - Ida Josefsson
- Department
of Physics, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden
| | - Simon Schreck
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Institut
für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str.
24/25, 14476 Potsdam, Germany
| | - Wilson Quevedo
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Piter S. Miedema
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Simone Techert
- Max
Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37077 Göttingen, Germany
| | - Frank M. F. de Groot
- Department
of Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, Netherlands
| | - Michael Odelius
- Department
of Physics, Stockholm University, AlbaNova University Center, 10691 Stockholm, Sweden
| | - Philippe Wernet
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Alexander Föhlisch
- Institute
for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Institut
für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str.
24/25, 14476 Potsdam, Germany
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39
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Hua W, Tian G, Fronzoni G, Li X, Stener M, Luo Y. Fe L-Edge X-ray Absorption Spectra of Fe(II) Polypyridyl Spin Crossover Complexes from Time-Dependent Density Functional Theory. J Phys Chem A 2013; 117:14075-85. [DOI: 10.1021/jp408776p] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Weijie Hua
- Department
of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Guangjun Tian
- Department
of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Giovanna Fronzoni
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via L. Giorgieri
1, I-34127 Trieste, Italy
| | - Xin Li
- Department
of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Mauro Stener
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via L. Giorgieri
1, I-34127 Trieste, Italy
| | - Yi Luo
- Department
of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
- National Synchrotron
Radiation Laboratory and Hefei National Laboratory for Physical Sciences
at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
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