1
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Mendes RA, Haiduke RLA. Performance of new exchange–correlation functionals in providing vertical excitation energies of metal complexes. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02844-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Explaining the role of water in the “light-switch” probe for DNA intercalation: Modelling water loss from [Ru(phen)2(dppz)]2+•2H2O using DFT and TD-DFT methods. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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McMahon S, Rajagopal A, Amirjalayer S, Halpin Y, Fitzgerald-Hughes D, Buma WJ, Woutersen S, Long C, Pryce MT. Photo-activated CO-release in the amino tungsten Fischer carbene complex, [(CO) 5WC(NC 4H 8)Me], picosecond time resolved infrared spectroscopy, time-dependent density functional theory, and an antimicrobial study. J Inorg Biochem 2020; 208:111071. [PMID: 32434119 DOI: 10.1016/j.jinorgbio.2020.111071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 01/18/2023]
Abstract
Picosecond time-resolved infrared spectroscopy was used to probe the photo-induced early state dynamics preceding CO loss in the Fischer carbene complex, [(CO)5WC(NC4H8)CH3]. Time-dependent density functional theory calculations were employed to help in understanding the photochemical and photophysical processes leading to CO-loss. Electrochemical initiated CO release was quantified using gas chromatography. The potential of [(CO)5WC(NC4H8)CH3], as an antimicrobial agent under irradiation conditions was studied using a Staphylococcus aureus strain.
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Affiliation(s)
- Suzanne McMahon
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Ashwene Rajagopal
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland; Clinical Microbiology, Royal College of Surgeons in Ireland, RCSI Education and Research, Beaumont Hospital, Beaumont, Dublin 9, Ireland
| | - Saeed Amirjalayer
- Physikalisches Institut, Center for Nanotechnology (CeNTech) and Center for Multiscale Theory & Computation (CMTC), Westfälische Wilhelms-Universität Münster, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Yvonne Halpin
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Deirdre Fitzgerald-Hughes
- Clinical Microbiology, Royal College of Surgeons in Ireland, RCSI Education and Research, Beaumont Hospital, Beaumont, Dublin 9, Ireland
| | - Wybren Jan Buma
- University of Amsterdam, Van't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, P.O. Box 94157, 1090 GD Amsterdam, The Netherlands
| | - Sander Woutersen
- University of Amsterdam, Van't Hoff Institute for Molecular Sciences, Science Park 904, 1098 XH, Amsterdam, P.O. Box 94157, 1090 GD Amsterdam, The Netherlands
| | - Conor Long
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Mary T Pryce
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
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4
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Manton JC, Cerpentier FJR, Harvey EC, Clark IP, Greetham GM, Long C, Pryce MT. Photochemical or electrochemical bond breaking – exploring the chemistry of (μ 2-alkyne)Co 2(CO) 6 complexes using time-resolved infrared spectroscopy, spectro-electrochemical and density functional methods. Dalton Trans 2019; 48:14642-14652. [DOI: 10.1039/c9dt03006a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photoassisted Pauson–Khand reaction involves the formation of a high-spin diradical species and not CO loss as previously thought.
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Affiliation(s)
| | | | - Emma C. Harvey
- School of Chemical Sciences
- Dublin City University
- Dublin 9
- Ireland
| | - Ian P. Clark
- Central Laser Facility
- Science & Technology Facilities Council
- Research Complex at Harwell
- Rutherford Appleton Laboratory
- Didcot
| | - Gregory M. Greetham
- Central Laser Facility
- Science & Technology Facilities Council
- Research Complex at Harwell
- Rutherford Appleton Laboratory
- Didcot
| | - Conor Long
- School of Chemical Sciences
- Dublin City University
- Dublin 9
- Ireland
| | - Mary T. Pryce
- School of Chemical Sciences
- Dublin City University
- Dublin 9
- Ireland
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5
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Fumanal M, Harabuchi Y, Gindensperger E, Maeda S, Daniel C. Excited‐State Reactivity of [Mn(im)(CO)
3
(phen)]
+
: A Structural Exploration. J Comput Chem 2018; 40:72-81. [DOI: 10.1002/jcc.25535] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/25/2018] [Accepted: 06/26/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Maria Fumanal
- Laboratoire de Chimie Quantique, Institut de Chimie Strasbourg UMR7177 CNRS/Université de Strasbourg 1 Rue Blaise Pascal, BP296/R8, Strasbourg F‐67008 France
| | - Yu Harabuchi
- Department of Chemistry, Faculty of Science Hokkaido University Sapporo Hokkaido 060‐0810 Japan
| | - Etienne Gindensperger
- Laboratoire de Chimie Quantique, Institut de Chimie Strasbourg UMR7177 CNRS/Université de Strasbourg 1 Rue Blaise Pascal, BP296/R8, Strasbourg F‐67008 France
| | - Satoshi Maeda
- Department of Chemistry, Faculty of Science Hokkaido University Sapporo Hokkaido 060‐0810 Japan
- CREST Japan Science and Technology Agency Tokyo 102‐8666 Japan
| | - Chantal Daniel
- Laboratoire de Chimie Quantique, Institut de Chimie Strasbourg UMR7177 CNRS/Université de Strasbourg 1 Rue Blaise Pascal, BP296/R8, Strasbourg F‐67008 France
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6
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Mendes M, Regeta K, Ferreira da Silva F, Jones NC, Hoffmann SV, García G, Daniel C, Limão-Vieira P. Comprehensive investigation of the electronic excitation of W(CO) 6 by photoabsorption and theoretical analysis in the energy region from 3.9 to 10.8 eV. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:2208-2218. [PMID: 29114447 PMCID: PMC5669226 DOI: 10.3762/bjnano.8.220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/29/2017] [Indexed: 06/07/2023]
Abstract
High-resolution vacuum ultraviolet photoabsorption measurements in the wavelength range of 115-320 nm (10.8-3.9 eV) have been performed together with comprehensive relativistic time-dependent density functional calculations (TDDFT) on the low-lying excited sates of tungsten hexacarbonyl, W(CO)6. The higher resolution obtained reveals previously unresolved spectral features of W(CO)6. The spectrum shows two higher-energy bands (in the energy ranges of 7.22-8.12 eV and 8.15-9.05 eV), one of them with clear vibrational structure, and a few lower-energy shoulders in addition to a couple of lower-energy metal-to-ligand charge-transfer (MLCT) bands reported in the literature before. Absolute photoabsorption cross sections are reported and, where possible, compared to previously published results. On the basis of this combined experimental/theoretical study the absorption spectrum of the complex has been totally re-assigned between 3.9 and 10.8 eV under the light of spin-orbit coupling (SOC) effects. The present comprehensive knowledge of the nature of the electronically excited states may be of relevance to estimate neutral dissociation cross sections of W(CO)6, a precursor molecule in focused electron beam induced deposition (FEBID) processes, from electron scattering measurements.
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Affiliation(s)
- Mónica Mendes
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Khrystyna Regeta
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Filipe Ferreira da Silva
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Nykola C Jones
- ISA, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000, Aarhus C, Denmark
| | - Søren Vrønning Hoffmann
- ISA, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000, Aarhus C, Denmark
| | - Gustavo García
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC), Serrano 113-bis, 28006 Madrid, Spain
| | - Chantal Daniel
- Laboratoire de Chimie Quantique, Institut de Chimie Strasbourg, UMR7177 CNRS/Université de Strasbourg 1 Rue Blaise Pascal BP296/R8, F-67008 Strasbourg, France
| | - Paulo Limão-Vieira
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
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7
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Zhang ZF, Su MD. Mechanistic Study for the Photochemical Reactions of d 6 M(CO) 5(CS) (M = Cr, Mo, and W) Complexes. ACS OMEGA 2017; 2:2813-2826. [PMID: 31457619 PMCID: PMC6641059 DOI: 10.1021/acsomega.7b00380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 06/09/2017] [Indexed: 06/10/2023]
Abstract
The mechanisms of photoextrusion reactions are determined theoretically for the model system of six-coordinated M(CO)5(CS) (M = Cr, Mo, and W), using both CASSCF and MP2-CAS methods and the Def2-SVPD basis set. Three types of elimination reaction pathways (i.e., path I, path II, and path III for axial CO extrusion, equatorial CO extrusion, and CS ligand extrusion, respectively) are considered in this study. Theoretical findings show that the photoextrusion mechanism for Cr and Mo complexes proceeds as follows: M-S0-Rea + hν → M-S1-FC → M-CI → M-Pro + CO. This study shows that when the reactant, M(CO)5(CS) (M-S0-Rea), is photoirradiated by UV light, it is excited vertically to many low-lying singlet excited states. It then relaxes to the first singlet excited state from the Franck-Condon point (M-S1-FC). After passing through a conical intersection point (M-CI), this species eliminates a CO group to yield a five-coordinated product, M(CO)4(CS) (M-S0-Pro). However, for the W analogue, the photolysis mechanism is represented as W-S0-Rea + hν → W-T1-Min → W-T1-TS → W-T1/S0 → W-S0-Pro + CO. That is to say, when the reactant, W(CO)5(CS) (W-S0-Rea), absorbs UV light, it is excited to its several low-lying excited states by a vertical excitation. This species may then return to an intermediate at the first triplet excited state (W-T1-Min) by means of intersystem crossings or conical intersections. After passing through a triplet transition state (W-T1-TS) and a subsequent intersystem crossing (W-T1/S0), this molecule finally loses a CO ligand to produce a photoproduct at the ground singlet state (W-S0-Pro). In other words, conical intersections and intersystem crossings play a decisive role in these photoextrusion reactions for M(CO)5(CS). Theoretical evidence from a kinetic viewpoint strongly supports the theory that the photolysis of M(CO)5(CS) only produces CO-loss photoproducts rather than the CS-loss photoproduct. Theoretical analysis using the results of this study allows a good interpretation of the available experimental observations.
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Affiliation(s)
- Zheng-Feng Zhang
- Department
of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
| | - Ming-Der Su
- Department
of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung
Medical University, Kaohsiung 80708, Taiwan
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8
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Phung QM, Wouters S, Pierloot K. Cumulant Approximated Second-Order Perturbation Theory Based on the Density Matrix Renormalization Group for Transition Metal Complexes: A Benchmark Study. J Chem Theory Comput 2016; 12:4352-61. [DOI: 10.1021/acs.jctc.6b00714] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Quan Manh Phung
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Sebastian Wouters
- Center
for Molecular Modelling, Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Kristine Pierloot
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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9
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McMahon S, Amirjalayer S, Buma WJ, Halpin Y, Long C, Rooney AD, Woutersen S, Pryce MT. An investigation into the photochemistry of, and the electrochemically induced CO-loss from, [(CO)5MC(OMe)Me](M = Cr or W) using low-temperature matrix isolation, picosecond infrared spectroscopy, cyclic voltammetry, and time-dependent density functional theory. Dalton Trans 2015; 44:15424-34. [PMID: 26089130 DOI: 10.1039/c5dt01568e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photophysics and photochemistry of [(CO)5MC(OMe)Me] (M = Cr or W) were investigated using picosecond time-resolved infrared spectroscopy (M = Cr or W), low-temperature matrix isolation techniques (M = Cr), and time-dependent density functional calculations (M = Cr or W). These studies provide unambiguous evidence for the photochemical formation of a long-lived, 18-electron metallaketene species capable of acting as a synthetically useful intermediate. For the Cr complex, an intermediate metallacyclopropanone singlet excited state was detected on the reaction path to the metallaketene species. This metallacyclopropanone excited state species has a lifetime of less than 100 ps and a characteristic bridging carbonyl band at 1770 cm(-1). The tungsten ketene species was also detected but in contrast to the chromium system, this forms directly from a low-lying triplet excited state. The electrochemical release of CO showed a greater efficiency for the chromium complex when compared to the tungsten.
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Affiliation(s)
- Suzanne McMahon
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
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10
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11
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Excited electronic states of MnO4−: Challenges for wavefunction and density functional response theories. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2014.11.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Manton JC, Amirjalayer S, Coleman AC, McMahon S, Harvey EC, Greetham GM, Clark IP, Buma WJ, Woutersen S, Pryce MT, Long C. Excited state evolution towards ligand loss and ligand chelation at group 6 metal carbonyl centres. Dalton Trans 2014; 43:17797-805. [PMID: 25093429 DOI: 10.1039/c4dt01544d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photochemistry and photophysics of three model "half-sandwich" complexes (η(6)-benzophenone)Cr(CO)3, (η(6)-styrene)Cr(CO)3, and (η(6)-allylbenzene)Cr(CO)3 were investigated using pico-second time-resolved infrared spectroscopy and time-dependent density functional theory methods. The (η(6)-benzophenone)Cr(CO)3 complex was studied using two excitation wavelengths (470 and 320 nm) while the remaining complexes were irradiated using 400 nm light. Two independent excited states were detected spectroscopically for each complex, one an unreactive excited state of metal-to-arene charge-transfer character and the other with metal-to-carbonyl charge transfer character. This second excited state leads to an arrested release of CO on the pico-second time-scale. Low-energy excitation (470 nm) of (η(6)-benzophenone)Cr(CO)3 populated only the unreactive excited state which simply relaxes to the parent complex. Higher energy irradiation (320 nm) induced CO-loss. Irradiation of (η(6)-styrene)Cr(CO)3, or (η(6)-allylbenzene)Cr(CO)3 at 400 nm provided evidence for the simultaneous population of both the reactive and unreactive excited states. The efficiency at which the unreactive excited state is populated depends on the degree of conjugation of the substituent with the arene π-system and this affects the efficiency of the CO-loss process. The quantum yield of CO-loss is 0.50 for (η(6)-allylbenzene)Cr(CO)3 and 0.43 for (η(6)-styrene)Cr(CO)3. These studies provide evidence for the existence of two photophysical routes to CO loss, a minor ultrafast route and an arrested mechanism involving the intermediate population of a reactive excited state. This reactive excited state either relaxes to reform the parent species or eject CO. Thus the quantum yield of the CO-loss is strongly dependent on the excitation wavelength. Time-dependent density functional theory calculations confirm that the state responsible for ultrafast CO-loss has significant metal-centred character while the reactive state responsible for the arrested CO-loss has significant metal-to-carbonyl charge-transfer character. The CO-loss product (η(6)-allylbenzene)Cr(CO)2 formed following irradiation of (η(6)-allylbenzene)Cr(CO)3 reacts further with the pendent alkenyl group to form the chelate product (η(6),η(2)-allylbenzene)Cr(CO)2.
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Affiliation(s)
- Jennifer C Manton
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
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13
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Escudero D, Thiel W. Assessing the density functional theory-based multireference configuration interaction (DFT/MRCI) method for transition metal complexes. J Chem Phys 2014; 140:194105. [DOI: 10.1063/1.4875810] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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15
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McKinlay RG, Paterson MJ. A Time-Dependent Density Functional Theory Study of the Structure and Electronic Spectroscopy of the Group 7 Mixed-Metal Carbonyls: MnTc(CO)10, MnRe(CO)10, and TcRe(CO)10. J Phys Chem A 2012; 116:9295-304. [DOI: 10.1021/jp3073969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Russell G. McKinlay
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, Scotland
| | - Martin J. Paterson
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, Scotland
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16
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George MW, Long C, Pryce MT, Sun XZ, Vuong KQ. A Combined Theoretical and Experimental Study on the Wavelength-Dependent Photophysics of (η6-benzene)Mo(CO)3. Organometallics 2011. [DOI: 10.1021/om200861q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Michael W. George
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Conor Long
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Mary T. Pryce
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Xue-Zhong Sun
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Khuong Q. Vuong
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
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Vancoillie S, Zhao H, Tran VT, Hendrickx MFA, Pierloot K. Multiconfigurational Second-Order Perturbation Theory Restricted Active Space (RASPT2) Studies on Mononuclear First-Row Transition-Metal Systems. J Chem Theory Comput 2011; 7:3961-77. [DOI: 10.1021/ct200597h] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Steven Vancoillie
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Hailiang Zhao
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Van Tan Tran
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Marc F. A. Hendrickx
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
| | - Kristine Pierloot
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
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18
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Crespo-Otero R, Barbatti M. Cr(CO)6 photochemistry: Semi-classical study of UV absorption spectral intensities and dynamics of photodissociation. J Chem Phys 2011; 134:164305. [DOI: 10.1063/1.3582914] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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19
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20
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Kosma K, Trushin SA, Fuß W, Schmid WE, Schneider BMR. Photodissociation of group-6 hexacarbonyls: observation of coherent oscillations in an antisymmetric (pseudorotation) vibration in Mo(CO)5 and W(CO)5. Phys Chem Chem Phys 2010; 12:13197-214. [DOI: 10.1039/c0cp00731e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Coleman AC, Boyle NM, Long C, Augulis R, Pugzlys A, van Loosdrecht PHM, Browne WR, Feringa BL, Ronayne KL, Pryce MT. Optically induced cis-trans isomerisation of (η6-cis-stilbene)Cr(CO)3. Dalton Trans 2010; 39:2201-3. [DOI: 10.1039/b925349c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Anthony C Coleman
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
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22
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Vibronic Coupling In Inorganic Systems: Photochemistry, Conical Intersections, And The Jahn–Teller And Pseudo-Jahn–Teller Effects. ADVANCES IN INORGANIC CHEMISTRY 2010. [DOI: 10.1016/s0898-8838(10)62009-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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24
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Bitterwolf TE, Thornley W, Crawford JL. CO-loss and geometric isomerization in the frozen matrix photochemistry of cis-Fe(CO)4X2, where X=Br and I, cis-[Et4N][Mn(CO)4Br2], cis-Mn(CO)4(PBu3)Br, and Mn(CO)3(PBu3)2Br. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.09.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Litwinski C, Corral I, Ermilov EA, Tannert S, Fix D, Makarov S, Suvorova O, Wöhrle D, Röder B. Annulated Dinuclear Metal-Free and Zn(II) Phthalocyanines: Photophysical Studies and Quantum Mechanical Calculations. J Phys Chem B 2008; 112:8466-76. [DOI: 10.1021/jp800616r] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christian Litwinski
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Inés Corral
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Eugeny A. Ermilov
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Sebastian Tannert
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Dmitri Fix
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Sergey Makarov
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Olga Suvorova
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Dieter Wöhrle
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
| | - Beate Röder
- Institute of Physics, Humboldt University of Berlin, Newtonstrasse 15, D-12489 Berlin, Germany, Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin 14195, Germany, G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia, and Institute of Organic and Macromolecular Chemistry, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany
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Trushin S, Kosma K, Fuß W, Schmid W. Wavelength-independent ultrafast dynamics and coherent oscillation of a metal–carbon stretch vibration in photodissociation of Cr(CO)6 in the region of 270–345nm. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.09.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Rocha AB. Intensity of d−d Symmetry-Forbidden Electronic Transition in Cr(CO)6. J Phys Chem A 2007; 111:4711-3. [PMID: 17461558 DOI: 10.1021/jp070334b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Absolute absorption intensities (oscillator strengths) are calculated for the d-d symmetry-forbidden transition in hexacarbonyl chromium. The vibronic coupling mechanism is taken into account in a way that represents an alternative to the traditional perturbative approach of Herzberg and Teller. In the so-called direct method, the electronic transition moment is directly expanded in a power series of the vibrational normal coordinates of suitable symmetry. In the present case, i.e., d-d ligand field transitions, or more specifically (1)A(1g) --> (1)T(1g) and (1)A(1g) --> (1)T(2g) transitions, the dipole selection rule is broken by vibronic interaction induced by normal modes that transform like T(1u) and T(2u) representations of the O(h) group. An analysis of the relative importance of normal modes in promoting electronic transitions is carried out.
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Affiliation(s)
- Alexandre B Rocha
- Instituto de Química, Departamento de Físico-Qímica, Universidade Federal do Rio de Janeiro, Cidade UniversitAria, CT Bloco A. Rio de Janeiro, 21941-909 Rio de Janeiro, Brazil.
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Villaume S, Strich A, Ndoye CA, Daniel C, Perera SA, Bartlett RJ. Theoretical study of the electronic structure of MCH2+(M=Fe,Co,Ni). J Chem Phys 2007; 126:154318. [PMID: 17461637 DOI: 10.1063/1.2710259] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
State of the art coupled cluster (CC) methods are applied to accurately characterize the ground state electronic structure and photoelectron spectra of transition metal carbene ions MCH(2) (+) (M=Fe, Co, and Ni). The geometries and energies of the lowest energy quartet, triplet, and doublet electronic states as well as several low-lying vertical excitation energies of FeCH(2) (+), CoCH(2) (+), and NiCH(2) (+) are reported. The excitation energies are computed using the equation-of-motion CC and for states of different symmetries, by the energy differences of single reference ground and excited states (Delta-CC). The latter employ several reference states; the unrestricted Hartree-Fock, restricted open shell Hartree-Fock, and unrestricted Kohn-Sham. We conclude that the (2)A(1) electronic ground state of NiCH(2) (+) is separated by about 30.0 kJ/mol from the next highest state, and the lowest (4)B(1) and (4)B(2) states of FeCH(2) (+) as well as the (3)A(2) and (3)A(1) states of CoCH(2) (+) are nearly degenerate. The presence of metal-pi*(MCH(2)) charge transfer states with significant oscillator strengths in the visible/near-UV energy domain of the theoretical spectra of FeCH(2) (+) and CoCH(2) (+) are at the origin of the photofragmentation of these compounds observed after irradiation between 310 and 360 nm.
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Affiliation(s)
- Sébastien Villaume
- Laboratoire de Chimie Quantique, UMR 7177, Institut de Chimie, Université Louis Pasteur/CNRS/ULP, 4 Rue Blaise Pascal, F-67000 Strasbourg, France
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Vlček A, Záliš S. Modeling of charge-transfer transitions and excited states in d6 transition metal complexes by DFT techniques. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2006.05.021] [Citation(s) in RCA: 384] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Villaume S, Strich A, Daniel C, Perera SA, Bartlett RJ. A coupled cluster study of the electronic spectroscopy and photochemistry of Cr(CO)6. Phys Chem Chem Phys 2007; 9:6115-22. [DOI: 10.1039/b709050a] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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