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Rudshteyn B, Weber JL, Coskun D, Devlaminck PA, Zhang S, Reichman DR, Shee J, Friesner RA. Calculation of Metallocene Ionization Potentials via Auxiliary Field Quantum Monte Carlo: Toward Benchmark Quantum Chemistry for Transition Metals. J Chem Theory Comput 2022; 18:2845-2862. [PMID: 35377642 PMCID: PMC9123894 DOI: 10.1021/acs.jctc.1c01071] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The accurate ab initio prediction of ionization energies is essential to understanding the electrochemistry of transition metal complexes in both materials science and biological applications. However, such predictions have been complicated by the scarcity of gas phase experimental data, the relatively large size of the relevant molecules, and the presence of strong electron correlation effects. In this work, we apply all-electron phaseless auxiliary-field quantum Monte Carlo (ph-AFQMC) utilizing multideterminant trial wave functions to six metallocene complexes to compare the computed adiabatic and vertical ionization energies with experimental results. We find that ph-AFQMC yields mean absolute errors (MAEs) of 1.69 ± 1.02 kcal/mol for the adiabatic energies and 2.85 ± 1.13 kcal/mol for the vertical energies. We also carry out density functional theory (DFT) calculations using a variety of functionals, which yields MAEs of 3.62-6.98 kcal/mol and 3.31-9.88 kcal/mol, as well as one variant of localized coupled cluster calculations (DLPNO-CCSD(T0) with moderate PNO cutoffs), which has MAEs of 4.96 and 6.08 kcal/mol, respectively. We also test the reliability of DLPNO-CCSD(T0) and DFT on acetylacetonate (acac) complexes for adiabatic energies measured in the same manner experimentally, and we find higher MAEs, ranging from 4.56 to 10.99 kcal/mol (with a different ordering) for DFT and 6.97 kcal/mol for DLPNO-CCSD(T0). Finally, by utilizing experimental solvation energies, we show that accurate reduction potentials in solution for the metallocene series can be obtained from the AFQMC gas phase results.
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Affiliation(s)
- Benjamin Rudshteyn
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, United States
| | - John L Weber
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, United States
| | - Dilek Coskun
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, United States
| | - Pierre A Devlaminck
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, United States
| | - Shiwei Zhang
- Center for Computational Quantum Physics, Flatiron Institute, 162 Fifth Avenue, New York, New York 10010, United States.,Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, United States
| | - David R Reichman
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, United States
| | - James Shee
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Richard A Friesner
- Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, United States
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2
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Periodic Trends Revealed by Photoelectron Studies of Transition Metal and Lanthanide Compounds. STRUCTURE AND BONDING 2019. [DOI: 10.1007/430_2019_37] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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3
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Rahnamaye Aliabad HA, Chahkandi M. Comprehensive SPHYB and B3LYP-DFT Studies of Two Types of Ferrocene. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201600423] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Mohammad Chahkandi
- Department of Chemistry; Hakim Sabzevari University; 96179-76487 Sabzevar Iran
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4
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Group 1 cyclopentadienide/group 1,14-tert-butoxide adducts: Ion exchange and coordination polymer formation. Polyhedron 2014. [DOI: 10.1016/j.poly.2013.12.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Abstract
Electrons have so little mass that in less than a second they can tunnel through potential energy barriers that are several electron-volts high and several nanometers wide. Electron tunneling is a critical functional element in a broad spectrum of applications, ranging from semiconductor diodes to the photosynthetic and respiratory charge transport chains. Prior to the 1970s, chemists generally believed that reactants had to collide in order to effect a transformation. Experimental demonstrations that electrons can transfer between reactants separated by several nanometers led to a revision of the chemical reaction paradigm. Experimental investigations of electron exchange between redox partners separated by molecular bridges have elucidated many fundamental properties of these reactions, particularly the variation of rate constants with distance. Theoretical work has provided critical insights into the superexchange mechanism of electronic coupling between distant redox centers. Kinetics measurements have shown that electrons can tunnel about 2.5 nm through proteins on biologically relevant time scales. Longer-distance biological charge flow requires multiple electron tunneling steps through chains of redox cofactors. The range of phenomena that depends on long-range electron tunneling continues to expand, providing new challenges for both theory and experiment.
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Affiliation(s)
- Jay R. Winkler
- Beckman Institute, California
Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
| | - Harry B. Gray
- Beckman Institute, California
Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
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Kishimoto N, Kimura M, Ohno K. Two-Dimensional Penning Ionization Electron Spectroscopy of Open-Shell Metallocenes: Outer Valence Ionic States of Vanadocene and Nickelocene. J Phys Chem A 2013; 117:3025-33. [DOI: 10.1021/jp310308k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Naoki Kishimoto
- Department of Chemistry, Graduate
School of Science, Tohoku University, Sendai
980-8578, Japan
| | - Miku Kimura
- Department of Chemistry, Graduate
School of Science, Tohoku University, Sendai
980-8578, Japan
| | - Koichi Ohno
- Toyota Physical and Chemical Research Institute, Nagakute, Aichi 480-1192,
Japan
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Mancel D, Jevric M, Davies ES, Schröder M, Khlobystov AN. Triad and cyclic diad compounds of [60]fullerene with metallocenes. Dalton Trans 2013; 42:5056-67. [DOI: 10.1039/c3dt32626h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Dorothée Mancel
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK
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Lancaster KM, Finkelstein KD, DeBeer S. Kβ X-ray Emission Spectroscopy Offers Unique Chemical Bonding Insights: Revisiting the Electronic Structure of Ferrocene. Inorg Chem 2011; 50:6767-74. [DOI: 10.1021/ic200822b] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Kyle M. Lancaster
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Kenneth D. Finkelstein
- Cornell High Energy Synchrotron Source, Wilson Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Serena DeBeer
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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10
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Kishimoto N, Ohno K. Outer valence ionic states of Cr(CO)6 and (eta(5)-C5H5)Co(CO)2 observed by two-dimensional penning ionization electron spectroscopy. J Phys Chem A 2009; 113:14559-64. [PMID: 19715352 DOI: 10.1021/jp9040524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Outer valence ionic states of Cr(CO)(6) and (eta(5)-C(5)H(5))Co(CO)(2) were investigated by means of Penning ionization electron spectroscopy (PIES) upon collision with metastable He*(2(3)S) excited atoms as well as high-level ab initio molecular orbital calculations taking electron correlation effects into consideration. By the 2D measurement combining the collision-energy-resolved technique of the metastable atomic beam and electron spectroscopy, ionic-state-resolved measurement of collision energy dependence of partial ionization cross sections (CEDPICS) was carried out. Because partial Penning ionization cross sections can be connected to the spatial extent of corresponding molecular orbitals (MOs) outside the boundary surface of colliding He* atoms, different slopes of CEDPICS were related to anisotropic interaction around the MO region. The observed CEDPICS and PIES band intensity were consistent with the order of calculated ionic states.
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Affiliation(s)
- Naoki Kishimoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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11
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Kishimoto N, Ohno K. Stereodynamics and outer valence ionic States of ferrocene in collisional ionization with a He*(2(3)S) metastable atom by two-dimensional penning ionization electron spectroscopy. J Phys Chem A 2009; 113:521-6. [PMID: 19102626 DOI: 10.1021/jp805361z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Outer valence ionic states of ferrocene were investigated by means of Penning ionization electron spectroscopy upon collision with metastable He*(2(3)S) excited atoms. By two-dimensional measurement combining electron spectroscopy and collision-energy-resolved technique of the metastable atomic beam, ionic-state-resolved measurements of collision energy dependence of partial Penning ionization cross sections (CEDPICS) were carried out. Since the partial Penning ionization cross sections can be connected with spatial extension of corresponding molecular orbitals (MOs) outside the boundary surface for the collision with He* atoms, different slope values of CEDPICS were related with stereodynamics in Penning ionization as well as anisotropic interaction around the ionization region: attractive interaction around ligand pi orbitals and repulsive interaction around ligand sigma orbtials and the metal atom. The observed negative collision energy dependence of ionization cross sections for the first ((2)E(2)') and second ((2)A(1)') ionic states was consistent with configuration interactions suggested by ab initio MO calculations [J. Chem. Phys. 2002, 117, 6533], which is due to the strong electron correlation effects beyond the one-electron MO description.
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Affiliation(s)
- Naoki Kishimoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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12
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Kinnibrugh TL, Salman S, Getmanenko YA, Coropceanu V, Porter WW, Timofeeva TV, Matzger AJ, Brédas JL, Marder SR, Barlow S. Dipolar Second-Order Nonlinear Optical Chromophores Containing Ferrocene, Octamethylferrocene, and Ruthenocene Donors and Strong π-Acceptors: Crystal Structures and Comparison of π-Donor Strengths. Organometallics 2009; 28:1350-1357. [PMID: 20047010 PMCID: PMC2669306 DOI: 10.1021/om800986s] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Crystal structures have been determined for six dipolar polyene chromophores with metallocenyl - ferrocenyl (Fc), octamethylferrocenyl (Fc″), or ruthenocenyl (Rc) - donors and strong heterocyclic acceptors based on 1,3-diethyl-2-thiobarbituric acid or 3-dicyanomethylidene-2,3-dihydrobenzothiophene-1,1-dioxide. In each case, crystals were found to belong to centrosymmetric space groups. For one example, polymer-induced heteronucleation revealed the existence of two additional polymorphs, which were inactive in second-harmonic generation, suggesting that they were also centrosymmetric. The bond-length alternations between the formally double and single bonds of the polyene bridges are reduced compared to simple polyenes, indicating significant contribution from charge-separated resonance structures, although the metallocenes are not significantly distorted towards the [(η(6)-fulvene)(η(5)-cyclopentadienyl)metal(II)](+) extreme. DFT geometries are in excellent agreement with those determined crystallographically; while the π-donor strengths of the three metallocenyl groups are insufficiently different to result in detectable differences in the crystallographic bond-length alternations, the DFT geometries, as well as DFT-calculations of partial charges for atoms, suggest that π-donor strength decreases in the order Fc″ ≫ Fc > Rc. NMR, IR and electrochemical evidence also suggests that octamethylferrocenyl is the stronger π-donor, exhibiting similar π-donor strength to a p-(dialkylamino)phenyl group, while ferrocenyl and ruthenocenyl show very similar π-donor strengths to one another in chromophores of this type.
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13
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Boccia A, Marrani AG, Stranges S, Zanoni R, Alagia M, Cossi M, Iozzi MF. Symmetry breaking effect in the ferrocene electronic structure by hydrocarbon-monosubstitution: An experimental and theoretical study. J Chem Phys 2008; 128:154315. [DOI: 10.1063/1.2898498] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Vannikov AV, Grishina AD. Processes amplifying the effects of light on polymer layers. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1993v062n01abeh000004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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16
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Flood A, McAdam C, Gordon K, Kjaergaard H, Manning A, Robinson B, Simpson J. Electronic structure and near-IR transitions of FcC2R and FcC4R dyads. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.07.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Cauletti C, Furlani C. Gas Phase UV Photoelectron Spectroscopy as a Tool for the Investigation of Electronic Structures of Coordination Compounds. COMMENT INORG CHEM 2006. [DOI: 10.1080/02603598508072274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Böhm MC, Gleiter R. Die He(I)‐Photoelektronenspektren von Bis(1,3‐dien)monocarbonyleisenkomplexen. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cber.19801131122] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Michael C. Böhm
- Institute für Organische Chemie der Technischen Hochschule Darmstadt, D‐6100 Darmstadt
| | - Rolf Gleiter
- Universität Heidelberg, Im Neuenheimer Feld 270, D‐6900 Heidelberg 1
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19
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Oviedo JJ, El-Khouly ME, de la Cruz P, Pérez L, Garín J, Orduna J, Araki Y, Langa F, Ito O. Synthesis and photophysical properties of ruthenocene-[60]fullerene dyads. NEW J CHEM 2006. [DOI: 10.1039/b509221c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Decleva P, Fronzoni G, Stener M, de Simone M, Coreno M, Green JC, Hazari N, Plekan O. Strong oscillations in molecular valence photoemission intensities. PHYSICAL REVIEW LETTERS 2005; 95:263401. [PMID: 16497086 DOI: 10.1103/physrevlett.95.263401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2005] [Indexed: 05/06/2023]
Abstract
Photoemission from the two outermost ionizations [highest occupied molecular orbitals (HOMO and HOMO-1)] of Mg(eta(5)-C(5)H(5))(2) has been studied with synchrotron radiation in the gas phase. Strong oscillations in the HOMO-1/HOMO ratio, qualitatively similar to those well-known for fullerenes, are found. Excellent agreement with the experimental ratio is provided by accurate cross section calculations both at the density-functional theory and time-dependent density-functional theory level, indicating that a many electron response has a minor role for this effect. A comparison with the calculated values for other metal sandwich compounds indicate that the presence of oscillations is a widespread phenomenon, and a potential source of interesting information on the structural and electronic properties of the target molecule.
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Affiliation(s)
- Piero Decleva
- Dipartimento di Scienze Chimiche, Università di Trieste, Italy
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21
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Wang XB, Dai B, Woo HK, Wang LS. Intramolecular Rotation through Proton Transfer: [Fe(η5-C5H4CO2−)2] versus [(η5-C5H4CO2−)Fe(η5-C5H4CO2H)]. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200501564] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Wang XB, Dai B, Woo HK, Wang LS. Intramolecular Rotation through Proton Transfer: [Fe(η5-C5H4CO2−)2] versus [(η5-C5H4CO2−)Fe(η5-C5H4CO2H)]. Angew Chem Int Ed Engl 2005; 44:6022-4. [PMID: 16097018 DOI: 10.1002/anie.200501564] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xue-Bin Wang
- Department of Physics, Washington State University, 2710 University Drive, Richland, WA 99352, USA
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23
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Vogler A, Kunkely H. Excited state properties of organometallics based on interligand interactions between aromatic ligands. Coord Chem Rev 2005. [DOI: 10.1016/j.ccr.2005.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Oviedo JJ, de la Cruz P, Garín J, Orduna J, Langa F. Ruthenocene as a new donor fragment in [60]fullerene–donor dyads. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.05.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Ferreira R. Paradoxical violations of Koopmans' theorem, with special reference to the 3d transition elements and the lanthanides. STRUCTURE AND BONDING 2005. [DOI: 10.1007/3-540-07964-5_33] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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27
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Open shell metallocenes and exchange splitting of ligand bands: a reassignment of the photoelectron spectra of manganocene. Polyhedron 2004. [DOI: 10.1016/j.poly.2004.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Kunkely H, Vogler A. Optical properties of bis(cyclopentadienyl)magnesium: excimer-type luminescence of the bis(cyclopentadienyl) ligand frame. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.05.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Xu ZF, Xie Y, Feng WL, Schaefer HF. Systematic Investigation of Electronic and Molecular Structures for the First Transition Metal Series Metallocenes M(C5H5)2 (M = V, Cr, Mn, Fe, Co, and Ni). J Phys Chem A 2003. [DOI: 10.1021/jp0219855] [Citation(s) in RCA: 154] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhen-Feng Xu
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, and Department of Applied Chemistry, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yaoming Xie
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, and Department of Applied Chemistry, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Wen-Lin Feng
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, and Department of Applied Chemistry, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, and Department of Applied Chemistry, Beijing University of Chemical Technology, Beijing 100029, PR China
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Ishimura K, Hada M, Nakatsuji H. Ionized and excited states of ferrocene: Symmetry adapted cluster–configuration–interaction study. J Chem Phys 2002. [DOI: 10.1063/1.1504709] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Padden Metzker JK, Gruhn NE, Lichtenberger DL. Transferability of the Valence Ionization Intensities of Chemical Functional Groups between Molecules. J Phys Chem A 2002. [DOI: 10.1021/jp025783k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Julia K. Padden Metzker
- Center for Gas-Phase Electron Spectroscopy, Department of Chemistry, The University of Arizona, Tucson, Arizona 85721
| | - Nadine E. Gruhn
- Center for Gas-Phase Electron Spectroscopy, Department of Chemistry, The University of Arizona, Tucson, Arizona 85721
| | - Dennis L. Lichtenberger
- Center for Gas-Phase Electron Spectroscopy, Department of Chemistry, The University of Arizona, Tucson, Arizona 85721
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32
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Fronzoni G, Colavita P, Stener M, De Alti G, Decleva P. Theoretical Study of Photoionization Processes in Fe(C5H5)2. J Phys Chem A 2001. [DOI: 10.1021/jp012733r] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G. Fronzoni
- Dipartimento di Scienze Chimiche, Universita' di Trieste, Via L. Giogieri 1, I-34127 Trieste, Italy
| | - P. Colavita
- Dipartimento di Scienze Chimiche, Universita' di Trieste, Via L. Giogieri 1, I-34127 Trieste, Italy
| | - M. Stener
- Dipartimento di Scienze Chimiche, Universita' di Trieste, Via L. Giogieri 1, I-34127 Trieste, Italy
| | - G. De Alti
- Dipartimento di Scienze Chimiche, Universita' di Trieste, Via L. Giogieri 1, I-34127 Trieste, Italy
| | - P. Decleva
- Dipartimento di Scienze Chimiche, Universita' di Trieste, Via L. Giogieri 1, I-34127 Trieste, Italy
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33
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Clara M, Neusser HJ. Ultrafast Dissociation Dynamics of Ferrocene and [3]-Ferrocenophan. J Phys Chem A 2001. [DOI: 10.1021/jp0026888] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Clara
- Institut für Physikalische und Theoretische Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85748 Garching, Germany
| | - H. J. Neusser
- Institut für Physikalische und Theoretische Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85748 Garching, Germany
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34
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Schumann H, Gottfriedsen J, Glanz M, Dechert S, Demtschuk J. Metallocenes of the alkaline earth metals and their carbene complexes. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(00)00684-7] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Richter U, Reinhold J, Heck J. Electronic structure of [(CpCr)[(CO)3M]]mu-Cot (M = Cr, Fe): a theoretical study. Inorg Chem 2000; 39:658-64. [PMID: 11272558 DOI: 10.1021/ic9910559] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electronic structure of two cyclooctatetraene-bridged dinuclear first-row transition metal complexes of the type [(CpM)[(CO)3M']]mu-Cot (M = Cr; M' = Fe (1), Cr (2)) was investigated by complete active space self-consistent field (CASSCF) calculations. In this context the differences in the binding capabilities of the complex fragments CpM and (CO)3M are discussed on the basis of extended Huckel molecular orbital (MO) calculations. The geometries used for the CASSCF calculations for complex 1 were obtained from the crystal structure. For 2 a model structure was established by geometry optimization using density functional methods. The CASSCF results agree well with the experimental findings and provide insight into the binding situation of the two compounds. Complex 1 can be regarded as being composed of a chromocene-like subunit CpCr(eta5-C5H5) and the fragment (CO)3Fe(eta3-C3H3). A direct metal-metal bond is found, involving one initially singly occupied orbital of each fragment, leading to a doublet ground state for 1 with the remaining unpaired electron localized at the chromium center. For 2 no such direct metal-metal bond can be recognized. A very weak direct metal-metal interaction is induced by electron donation from the Cot2- ligand into a formally unoccupied metal-metal binding orbital combination. In the quartet ground state all three unpaired electrons are localized at the chromium center of the formally doubly positive charged CpCr unit, on which complex fragment [(CO)3Cr(eta5-Cot)]2- acts like a cyclopentadienyl ligand. The coordination sphere of the chromium center of the CpCr unit resembles that of a metallocene metal center and its metal 3d occupation scheme corresponds to that of vanadocene.
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Affiliation(s)
- U Richter
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8380, USA
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Richter U, Heck J, Reinhold J. Electronic Structure of the Electron-Poor Dinuclear Organometallic Compounds [(CpM)(CpM‘)]μ-Cot (M, M‘ = V, Cr, Fe, Co). Inorg Chem 1998. [DOI: 10.1021/ic9805776] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Uwe Richter
- Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Augustusplatz 10-11, D-04109 Leipzig, Germany, and Institut für Anorganische und Angewandte Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
| | - Jürgen Heck
- Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Augustusplatz 10-11, D-04109 Leipzig, Germany, and Institut für Anorganische und Angewandte Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
| | - Joachim Reinhold
- Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Augustusplatz 10-11, D-04109 Leipzig, Germany, and Institut für Anorganische und Angewandte Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
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Vapor-phase and solution-phase UV spectroscopic studies of η5-pentadienyl derivatives of iron and ruthenium. J Organomet Chem 1998. [DOI: 10.1016/s0022-328x(98)00608-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Matsuzawa N, Seto J, Dixon DA. Density Functional Theory Predictions of Second-Order Hyperpolarizabilities of Metallocenes. J Phys Chem A 1997. [DOI: 10.1021/jp952465v] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nobuyuki Matsuzawa
- SONY Corporation Research Center, 174 Fujitsuka-cho, Hodogaya-ku, Yokohama 240, Japan
| | - Jun'etsu Seto
- SONY Corporation Research Center, 174 Fujitsuka-cho, Hodogaya-ku, Yokohama 240, Japan
| | - David A. Dixon
- DuPont Central Research and Development, Experimental Station, P.O. Box 80328, Wilmington, Delaware 19880-0328
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Lichtenberger DL, Elkadi Y, Gruhn NE, Hughes RP, Curnow OJ, Zheng X. Electronic Structure Perturbations of Substituted Ruthenocenes: The First Photoelectron Spectra of Perchloro- and Perfluorocyclopentadienyl Complexes. Organometallics 1997. [DOI: 10.1021/om9705416] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Li X, Bancroft GM, Puddephatt RJ. Variable Energy Photoelectron Spectroscopy: Periodic Trends in d-Orbital Energies for Organometallic Compounds of the Transition Metals. Acc Chem Res 1997. [DOI: 10.1021/ar960277x] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaorong Li
- Department of Chemistry, The University of Western Ontario, London, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
| | - G. M. Bancroft
- Department of Chemistry, The University of Western Ontario, London, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
| | - R. J. Puddephatt
- Department of Chemistry, The University of Western Ontario, London, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
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Zagorevskii DV, Holmes JL. Generation and Identification of Neutral CpFeC5H4X (X = O, CH2, CO) Complexes in the Gas Phase by Tandem Mass Spectrometry. Organometallics 1997. [DOI: 10.1021/om960951e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dmitri V. Zagorevskii
- Chemistry Department, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada K1N 6N5
| | - John L. Holmes
- Chemistry Department, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada K1N 6N5
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Janiak C, Lange KCH, Versteeg U, Lentz D, Budzelaar PHM. Ethene Polymerization Activity and Coordination Gap Aperture in non-ansa Alkyl-substituted Cyclopentadienyl- and Phospholyl-zirconium/MAO Catalysts. ACTA ACUST UNITED AC 1996. [DOI: 10.1002/cber.19961291219] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Li X, Bancroft GM, Puddephatt RJ, Hu YF, Tan KH. Variable-Energy Photoelectron Spectroscopy of CpM(CO)2 (M = Co, Rh, Ir): Molecular Orbital Assignments and an Evaluation of the Difference in Ground-State Orbital Characters. Organometallics 1996. [DOI: 10.1021/om960202x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaorong Li
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
| | - G. Michael Bancroft
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
| | - Richard J. Puddephatt
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
| | - Yong-Feng Hu
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
| | - Kim H. Tan
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7, and Canadian Synchrotron Radiation Facility, Synchrotron Radiation Centre, University of WisconsinMadison, Stoughton, Wisconsin 53589
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Sato M, Hayashi Y, Kumakura S, Shimizu N, Katada M, Kawata S. Synthesis and Oxidation of Iron(II) Ferrocenylacetylide Diphosphine Complexes. A Novel Type of Mixed-Valence Complex. Organometallics 1996. [DOI: 10.1021/om950525d] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Janiak C, Versteeg U, Lange KC, Weimann R, Hahn E. The influence of electronic and steric effects and the importance of polymerization conditions in the ethylene polymerization with zirconocene/MAO catalysts. J Organomet Chem 1995. [DOI: 10.1016/0022-328x(95)05647-8] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Janiak C, Kuhn N, Gleiter R. Effects of isolobal substitution in cyclopentadienyl ligands: The azacyclopentadienyl system C4R4N. Comparative photoelectron spectra of the tetra-tert-butyl ferrocene derivatives. J Organomet Chem 1994. [DOI: 10.1016/0022-328x(94)84025-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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O'Hare D, Murphy VJ, Kaltsoyannis N. Synthesis and characterisation of permethylindenyl complexes of cobalt and chromium: crystal structures of [Cr(η5-C9Me7)2], [Co(η5-C9Me7)2][PF6] and [Cr(η5-C9Me7)2][PF6]. ACTA ACUST UNITED AC 1993. [DOI: 10.1039/dt9930000383] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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