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Sergeieva T, Demirer TI, Wuttke A, Mata RA, Schäfer A, Linker GJ, Andrada DM. Revisiting the origin of the bending in group 2 metallocenes AeCp 2 (Ae = Be-Ba). Phys Chem Chem Phys 2023. [PMID: 37482883 PMCID: PMC10395002 DOI: 10.1039/d2cp05020j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Metallocenes are well-established compounds in organometallic chemistry, and can exhibit either a coplanar structure or a bent structure according to the nature of the metal center (E) and the cyclopentadienyl ligands (Cp). Herein, we re-examine the chemical bonding to underline the origins of the geometry and stability observed experimentally. To this end, we have analysed a series of group 2 metallocenes [Ae(C5R5)2] (Ae = Be-Ba and R = H, Me, F, Cl, Br, and I) with a combination of computational methods, namely energy decomposition analysis (EDA), polarizability model (PM), and dispersion interaction densities (DIDs). Although the metal-ligand bonding nature is mainly an electrostatic interaction (65-78%), the covalent character is not negligible (33-22%). Notably, the heavier the metal center, the stronger the d-orbital interaction with a 50% contribution to the total covalent interaction. The dispersion interaction between the Cp ligands counts only for 1% of the interaction. Despite that orbital contributions become stronger for heavier metals, they never represent the energy main term. Instead, given the electrostatic nature of the metallocene bonds, we propose a model based on polarizability, which faithfully predicts the bending angle. Although dispersion interactions have a fair contribution to strengthen the bending angle, the polarizability plays a major role.
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Affiliation(s)
- Tetiana Sergeieva
- Department of Chemistry, Saarland University, Campus Saarbrücken, 66123 Saarbrücken, Germany.
| | - T Ilgin Demirer
- Department of Chemistry, Saarland University, Campus Saarbrücken, 66123 Saarbrücken, Germany.
| | - Axel Wuttke
- Institute for Physical Chemistry, Georg-August-University Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany.
| | - Ricardo A Mata
- Institute for Physical Chemistry, Georg-August-University Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany.
| | - André Schäfer
- Department of Chemistry, Saarland University, Campus Saarbrücken, 66123 Saarbrücken, Germany.
| | - Gerrit-Jan Linker
- MESA+ Institute for Nanotechnology, University of Twente, 7522 NB Enschede, The Netherlands.
| | - Diego M Andrada
- Department of Chemistry, Saarland University, Campus Saarbrücken, 66123 Saarbrücken, Germany.
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Peluso P, Mamane V. Ferrocene derivatives with planar chirality and their enantioseparation by liquid-phase techniques. Electrophoresis 2023; 44:158-189. [PMID: 35946562 PMCID: PMC10087518 DOI: 10.1002/elps.202200148] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/25/2022] [Accepted: 07/29/2022] [Indexed: 02/01/2023]
Abstract
In the last decade, planar chiral ferrocenes have attracted a growing interest in several fields, particularly in asymmetric catalysis, medicinal chemistry, chiroptical spectroscopy and electrochemistry. In this frame, the access to pure or enriched enantiomers of planar chiral ferrocenes has become essential, relying on the availability of efficient asymmetric synthesis procedures and enantioseparation methods. Despite this, in enantioseparation science, these metallocenes were not comprehensively explored, and very few systematic analytical studies were reported in this field so far. On the other hand, enantioselective high-performance liquid chromatography has been frequently used by organic and organometallic chemists in order to measure the enantiomeric purity of planar chiral ferrocenes prepared by asymmetric synthesis. On these bases, this review aims to provide the reader with a comprehensive overview on the enantioseparation of planar chiral ferrocenes by discussing liquid-phase enantioseparation methods developed over time, integrating this main topic with the most relevant aspects of ferrocene chemistry. Thus, the main structural features of ferrocenes and the methods to model this class of metallocenes will be briefly summarized. In addition, planar chiral ferrocenes of applicative interest as well as the limits of asymmetric synthesis for the preparation of some classes of planar chiral ferrocenes will also be discussed with the aim to orient analytical scientists towards 'hot topics' and issues which are still open for accessing enantiomers of ferrocenes featured by planar chirality.
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Affiliation(s)
- Paola Peluso
- Istituto di Chimica Biomolecolare ICB CNR, Sede secondaria di Sassari, Sassari, Italy
| | - Victor Mamane
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, Strasbourg, France
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3
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Lüthi HP, Helgaker T. A tribute to Jan Erik Almlöf. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1293305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hans P. Lüthi
- Laboratory of Physical Chemistry, ETH Zürich, Zürich, Switzerland
| | - Trygve Helgaker
- Department of Chemistry, Centre for Theoretical and Computational Chemistry (CTCC), University of Oslo, Oslo, Norway
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Vural H, Uçar İ. A combined theoretical and experimental study of chelidamate cadmium (II) complex, [Cd2(dpa)2(chel)2]⋅2[Cd(dpa)(chel)]⋅6H2O. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1298-1307. [PMID: 25456672 DOI: 10.1016/j.saa.2014.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/22/2014] [Accepted: 10/08/2014] [Indexed: 06/04/2023]
Abstract
A new chelidamate complex of Cd (II) ion, [Cd2(dpa)2(chel)2]⋅2[Cd(dpa)(chel)]⋅6H2O [(chel: chelidamate or 4-hydroxypyridine-2,6-dicarboxylate, dpa: di (2-picolyl)amine)] was synthesized and characterized by spectroscopic (UV-Vis and FT-IR spectroscopy) and structural (single-crystal X-ray diffraction) methods. Quantum chemical calculations were carried out by using Hartree Fock (HF) and Density Functional Theory (DFT)/B3LYP methods Stuttgart/Dresden (SDD) basis set. The asymmetric unit of the title compound contains two symmetry unrelated monomeric units, one dimeric unit and six water molecules of crystallization. The geometries around the Cd (II) metal centers in the units can be described as distorted octahedral for the monomeric units and distorted monocapped trigonal prism for the dimeric unit. The electronic structure of the complex was calculated using time dependent DFT (TD-DFT) method with polarizable continuum model (PCM). Molecular stability and bond strength were investigated by applying natural bond orbital analysis (NBO). The computed frequencies were compared with experimental frequencies.
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Affiliation(s)
- Hatice Vural
- Department of Physics, Faculty of Arts and Sciences, Amasya University, Ipekköy, 05000 Amasya, Turkey.
| | - İbrahim Uçar
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, Kurupelit, 55139 Samsun, Turkey
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Szczepanik DW, Andrzejak M, Dyduch K, Żak E, Makowski M, Mazur G, Mrozek J. A uniform approach to the description of multicenter bonding. Phys Chem Chem Phys 2014; 16:20514-23. [DOI: 10.1039/c4cp02932a] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel method for investigating the multicenter bonding patterns in molecular systems by means of the so-called Electron Density of Delocalized Bonds (EDDB) is introduced and discussed.
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Affiliation(s)
| | - Marcin Andrzejak
- Department of Theoretical Chemistry
- Jagiellonian University
- 30-060 Cracow, Poland
| | - Karol Dyduch
- Department of Theoretical Chemistry
- Jagiellonian University
- 30-060 Cracow, Poland
| | - Emil Żak
- Department of Theoretical Chemistry
- Jagiellonian University
- 30-060 Cracow, Poland
| | - Marcin Makowski
- Department of Theoretical Chemistry
- Jagiellonian University
- 30-060 Cracow, Poland
| | - Grzegorz Mazur
- Department of Computational Methods in Chemistry
- Jagiellonian University
- 30-060 Cracow, Poland
| | - Janusz Mrozek
- Department of Computational Methods in Chemistry
- Jagiellonian University
- 30-060 Cracow, Poland
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Herndon WC, Agranat I. Structure-Resonance Valence Bond Theory for Ferrocenes and Ferrocenylalkyl Cations. Isr J Chem 2013. [DOI: 10.1002/ijch.198300009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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A Chronicle About the Development of Electronic Structure Theories for Transition Metal Complexes. STRUCTURE AND BONDING 2011. [DOI: 10.1007/430_2011_47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Scuppa S, Orian L, Dini D, Santi S, Meneghetti M. Nonlinear Absorption Properties and Excited State Dynamics of Ferrocene. J Phys Chem A 2009; 113:9286-94. [DOI: 10.1021/jp9047192] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stefano Scuppa
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
| | - Laura Orian
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
| | - Danilo Dini
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
| | - Saverio Santi
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, I-35131 Padova, Italy
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Martin J, Baker J, Pulay P. Comments on the molecular geometry of ferrocene: The dangers of using quantum chemistry programs as black boxes. J Comput Chem 2009; 30:881-3. [DOI: 10.1002/jcc.21106] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Zhang X, Wang J, Gao Y, Zeng XC. Ab initio study of structural and magnetic properties of TM(n)(ferrocene)(n+1) (TM = Sc, Ti, V, Mn) sandwich clusters and nanowires (n = infinity). ACS NANO 2009; 3:537-545. [PMID: 19256546 DOI: 10.1021/nn800794c] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Structural and magnetic properties of multidecker sandwich clusters TM(n)(ferrocene)(n+1) [TM = V, Ti, Sc, Mn, ferrocene=FeCp(2), n = 1-3] and corresponding one-dimensional sandwich nanowires (n = infinity) are studied by means of gradient-corrected density functional theory. The TM(n)(FeCp(2))(n+1) clusters are highly stable polyferrocene-like sandwich structures due to strong Fe-Cp interaction. The total magnetic moment of TM(n)(FeCp(2))(n+1) (TM = V, Ti, Mn) increases linearly with the size n. More strikingly, Ti(n)(FeCp(2))(n+1) and V(n)(FeCp(2))(n+1) (n = 1-3) exhibit high magnetic moments 4, 8, 12 mu(B) and 1, 6, 11 mu(B), respectively. In contrast, Sc(n)(FeCp(2))(n+1) clusters are paramagnetic. The [TM(FeCp(2))](infinity) sandwich nanowires are ferromagnetic semiconductors whose band gap is 0.361, 0.506, 0.51, and 1.310 eV, respectively, for TM = Ti, Sc, V, and Mn. Among the four sandwich nanowires, [V(FeCp(2))](infinity) nanowire possesses the highest magnetic moment (5 mu(B)) per unit cell.
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Affiliation(s)
- Xiuyun Zhang
- Department of Physics, Southeast University, Nanjing, 211189, PR China
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Wallin G, Nervall M, Carlsson J, Åqvist J. Charges for Large Scale Binding Free Energy Calculations with the Linear Interaction Energy Method. J Chem Theory Comput 2009; 5:380-95. [DOI: 10.1021/ct800404f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Göran Wallin
- Department of Cell and Molecular Biology, Uppsala University, Box 596, SE-751 24 Uppsala, Sweden
| | - Martin Nervall
- Department of Cell and Molecular Biology, Uppsala University, Box 596, SE-751 24 Uppsala, Sweden
| | - Jens Carlsson
- Department of Cell and Molecular Biology, Uppsala University, Box 596, SE-751 24 Uppsala, Sweden
| | - Johan Åqvist
- Department of Cell and Molecular Biology, Uppsala University, Box 596, SE-751 24 Uppsala, Sweden
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Harding ME, Metzroth T, Gauss J, Auer AA. Parallel Calculation of CCSD and CCSD(T) Analytic First and Second Derivatives. J Chem Theory Comput 2007; 4:64-74. [DOI: 10.1021/ct700152c] [Citation(s) in RCA: 227] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael E. Harding
- Institut für Physikalische Chemie, Universität Mainz, Jakob-Welder-Weg 11, D-55099 Mainz, Germany
| | - Thorsten Metzroth
- Institut für Physikalische Chemie, Universität Mainz, Jakob-Welder-Weg 11, D-55099 Mainz, Germany
| | - Jürgen Gauss
- Institut für Physikalische Chemie, Universität Mainz, Jakob-Welder-Weg 11, D-55099 Mainz, Germany
| | - Alexander A. Auer
- Institut für Chemie, Technische Universität Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany
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13
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Zhang G, Zhang H, Sun M, Liu Y, Pang X, Yu X, Liu B, Li Z. Substitution effect on the geometry and electronic structure of the ferrocene. J Comput Chem 2007; 28:2260-74. [PMID: 17607720 DOI: 10.1002/jcc.20629] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The substitution effects on the geometry and the electronic structure of the ferrocene are systematically and comparatively studied using the density functional theory. It is found that -NH(2) and -OH substituents exert different influence on the geometry from -CH(3), -SiH(3), -PH(2), and -SH substituents. The topological analysis shows that all the C-C bonds in a-g are typical opened-shell interactions while the Fe-C bonds are typical closed-shell interactions. NBO analysis indicates that the cooperated interaction of d --> pi* and feedback pi --> d + 4s enhances the Fe-ligand interaction. The energy partitioning analysis demonstrates that the substituents with the second row elements lead to stronger iron-ligand interactions than those with the third row elements. The molecular electrostatic potential predicts that the electrophiles are expected to attack preferably the N, O, P, or S atoms in Fer-NH(2), Fer-OH, Fer-PH(2), and Fer-SH, and attack the ring C atoms in Fer-SiH(3) and Fer-CH(3). In turn, the nucleophiles are supposed to interact predominantly by attacking the hydrogen atoms. The simulated theoretical excitation spectra show that the maximum absorption peaks are red-shifted when the substituents going from second row elements to the third row elements.
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Affiliation(s)
- Guiling Zhang
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, People's Republic of China
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Abstract
The molecular structures of ferrocene in the eclipsed (equilibrium) and staggered (saddle-point) conformations have been determined by full geometry optimizations at the levels of second-order Møller-Plesset (MP2) theory, coupled-cluster singles-and-doubles (CCSD) theory, and CCSD theory with a perturbative triples correction [CCSD(T)] in a TZV2P+f basis set. Existing experimental results are reviewed. The agreement between the CCSD(T) results and experiment is in all cases excellent; the calculated structure parameters and the barrier to internal rotation of the ligand rings differ from the most accurate experimental values by less than two estimated standard deviations. The CCSD(T) calculations for single-configuration-dominated transition metal complexes such as ferrocene thus appear to have an accuracy comparable to that observed for molecules containing only first- and second-row atoms, and to be of a quality similar to that obtained experimentally. A comparison with previous DFT results indicates that the B3LYP model gives overall the best DFT results, with a deviation of around 2 pm for the metal-carbon distance and smaller errors for the cyclopentadienyl rings.
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Affiliation(s)
- Sonia Coriani
- Dipartimento di Scienze Chimiche, Università degli Studi di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
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Wann DA, Hinchley SL, Borisenko KB, Robertson HE, Francis MD, Nixon JF, Rankin DWH. The molecular structure of [Sn(P2C2But2)] using gas-phase electron diffraction and DFT calculations. Dalton Trans 2005:1972-8. [PMID: 15909045 DOI: 10.1039/b418171a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The molecular structure of 2,4-di-tert-butyl-eta4-1,3-diphosphacyclobutadiene tin has been determined in the gas phase by electron diffraction using both the DYNAMITE and SARACEN methods. The suitability of many different theoretical methods for the calculation of structures of half-sandwich main-group metal complexes has been investigated, and, by comparison of the results with the experimental structures, suggestions have been made as to the most suitable methods for this class of compound.
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Affiliation(s)
- Derek A Wann
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
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Padma Malar E. Can thecyclo-P5 Ligand Introduce Basicity at the Transition Metal Center in Metallocenes? A Hybrid Density Functional Study on thecyclo-P5 Analogues of Metallocenes of Fe, Ru and Os. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200400058] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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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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18
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Kadkin O, Näther C, Friedrichsen W. Syntheses and structural characterization of some mono- and di-p-nitrophenyl[3]ferrocenophanes: X-ray structure of [3]ferrocenophane, 3-p-nitrophenyl[3]ferrocenophane, and 3,4′-bis-(p-nitrophenyl)[3]ferrocenophane; DFT calculations on ferrocene derivatives. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01113-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Nemykin V, Kobayashi N, Chernii V, Belsky V. Mössbauer, Crystallographic, and Density Functional Theoretical Investigation of the Electronic Structure of Bis-Ligated Low-Spin Iron(II) Phthalocyanines. Eur J Inorg Chem 2001. [DOI: 10.1002/1099-0682(200103)2001:3<733::aid-ejic733>3.0.co;2-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Mayor-López MJ, Lüthi HP, Koch H, Morgantini PY, Weber J. Coupled-cluster calculations on ferrocene and its protonated derivatives: Towards the final word on the mechanism of protonation of ferrocene? J Chem Phys 2000. [DOI: 10.1063/1.1316031] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Bienati M, Bonačić-Koutecký V, Fantucci P. Theoretical Study of the Reactivity of Bismuth Oxide Cluster Cations with Ethene in the Presence of Molecular Oxygen. J Phys Chem A 2000. [DOI: 10.1021/jp001258e] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Massimiliano Bienati
- Walther-Nernst Institut für Physikalische und Theoretische Chemie, Humboldt-Universität zu Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany, and Dipartimento di Biotecnologie e Bioscienze, P.za della Scienza 1, Università Milano-Bicocca, 20126 Milano, Italy
| | - Vlasta Bonačić-Koutecký
- Walther-Nernst Institut für Physikalische und Theoretische Chemie, Humboldt-Universität zu Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany, and Dipartimento di Biotecnologie e Bioscienze, P.za della Scienza 1, Università Milano-Bicocca, 20126 Milano, Italy
| | - Piercarlo Fantucci
- Walther-Nernst Institut für Physikalische und Theoretische Chemie, Humboldt-Universität zu Berlin, Bunsenstrasse 1, D-10117 Berlin, Germany, and Dipartimento di Biotecnologie e Bioscienze, P.za della Scienza 1, Università Milano-Bicocca, 20126 Milano, Italy
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Lee JG, Jeong HY, Ko YH, Jang JH, Lee H. A Density Functional Study of Ethene Hydrogenation Reactions Catalyzed by Titanocene Complexes. J Am Chem Soc 2000. [DOI: 10.1021/ja991799l] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jung-Goo Lee
- Contribution from the KUMHO Chemical Laboratories, P.O. Box 64, Yuseong, Taejon 305−600, South Korea
| | - Ho Young Jeong
- Contribution from the KUMHO Chemical Laboratories, P.O. Box 64, Yuseong, Taejon 305−600, South Korea
| | - Young Hoon Ko
- Contribution from the KUMHO Chemical Laboratories, P.O. Box 64, Yuseong, Taejon 305−600, South Korea
| | - Jee Hwan Jang
- Contribution from the KUMHO Chemical Laboratories, P.O. Box 64, Yuseong, Taejon 305−600, South Korea
| | - Hosull Lee
- Contribution from the KUMHO Chemical Laboratories, P.O. Box 64, Yuseong, Taejon 305−600, South Korea
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Affiliation(s)
- Frederick P. Arnold
- Advanced Technology Center for Molecular Research, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637
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24
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Gilardoni F, Weber J, Hauser A, Daul C. A comparison of ground- and excited-state properties of [Ru(bz)2]2+ and bis(?6-benzene)ruthenium(II)p-toluenesulfonate using the density functional theory. J Comput Chem 1999. [DOI: 10.1002/(sici)1096-987x(199910)20:13<1343::aid-jcc2>3.0.co;2-u] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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The synthesis, characterization and properties of alkyl complexes of the type [Cp*Fe(CO)2R] (Cp*=η5-C5(CH3)5; R=n-C3H7 to n-C12H25); the X-ray crystal and molecular structure of [Cp*Fe(CO)2(n-C5H11)] and molecular orbital and density functional calculations on the β-hydride elimination of [CpFe(CO)2(CH2CH3)]. J Organomet Chem 1999. [DOI: 10.1016/s0022-328x(99)00260-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Huang HY, Padin J, Yang RT. Comparison of π-Complexations of Ethylene and Carbon Monoxide with Cu+ and Ag+. Ind Eng Chem Res 1999. [DOI: 10.1021/ie990035b] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Helen Y. Huang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Joel Padin
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Ralph T. Yang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
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Yasuike T, Yabushita S. Ionization Energies and Bonding Scheme of Multiple-Decker Sandwich Clusters: Mn(C6H6)n+1. J Phys Chem A 1999. [DOI: 10.1021/jp990093a] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomokazu Yasuike
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Satoshi Yabushita
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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Huang HY, Padin J, Yang RT. Anion and Cation Effects on Olefin Adsorption on Silver and Copper Halides: Ab Initio Effective Core Potential Study of π-Complexation. J Phys Chem B 1999. [DOI: 10.1021/jp982857c] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Helen Y. Huang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Joel Padin
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
| | - Ralph T. Yang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136
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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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Fisher JD, Budzelaar PHM, Shapiro PJ, Staples RJ, Yap GPA, Rheingold AL. Regarding the Structures and Fluxionality of Tricyclopentadienylaluminum Compounds. Organometallics 1997. [DOI: 10.1021/om9610049] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- James D. Fisher
- Departments of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, and University of Delaware, Newark, Delaware 19716, and Department of Inorganic Chemistry, University of Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
| | - Peter H. M. Budzelaar
- Departments of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, and University of Delaware, Newark, Delaware 19716, and Department of Inorganic Chemistry, University of Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
| | - Pamela J. Shapiro
- Departments of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, and University of Delaware, Newark, Delaware 19716, and Department of Inorganic Chemistry, University of Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
| | - Richard J. Staples
- Departments of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, and University of Delaware, Newark, Delaware 19716, and Department of Inorganic Chemistry, University of Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
| | - Glenn P. A. Yap
- Departments of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, and University of Delaware, Newark, Delaware 19716, and Department of Inorganic Chemistry, University of Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
| | - Arnold L. Rheingold
- Departments of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, and University of Delaware, Newark, Delaware 19716, and Department of Inorganic Chemistry, University of Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands
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32
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How well does coupled-cluster theory predict equilibrium geometries of transition metal compounds? A study on some classical mononuclear closed shell sandwich and carbonyl complexes. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/s0166-1280(96)80043-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Torrent M, Gili P, Duran M, Solà M. Exploring chromium (VI) dioxodihalides chemistry: Is density functional theory the most suitable tool? J Chem Phys 1996. [DOI: 10.1063/1.471693] [Citation(s) in RCA: 27] [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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Bytheway I, Popelier PL, Gillespie RJ. Topological studies of the charge density of some group 2 metallocenes M(η5-C5H5)2 (M = Mg or Ca). CAN J CHEM 1996. [DOI: 10.1139/v96-119] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ab initio quantum chemical calculations using both the Hartree–Fock and the B3LYP density functional theory methods have been performed for the group 2 metallocenes M (η5-C5-C5H5)2 (M = Mg or Ca). The topology of the calculated charge density (ρ) and its Laplacian [Formula: see text] have been analysed using a new critical point search algorithm in order to understand why Mg(η5-C5-H5)2 is linear while Ca(η-C5H5)2 is bent. The Laplacian of the core of the Ca atom in Ca(η5-C5H5)2 is perturbed by the polarizing field of the cyclopentadienyl ligands and the bent geometry is a consequence of the interactions between the distorted core and the ligand atoms. In the case of Mg(η5-C5H5)2, charge concentration maxima in the Mg core occur along the vectors connecting the metal to the centroids of the cyclopentadienyl ligands irrespective of whether or not the molecule is linear, and the preferred geometry is linear as expected. The results of these calculations demonstrate that the geometries of the group 2 metallocenes can be understood in terms of the repulsive interactions between the ligands and between the ligands and the distorted core of the metal atom. Key words: atoms in molecules, group 2 metallocenes, VSEPR, charge density, Laplacian of ρ.
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Substituent Effects as Probes of Structure and Bonding in Mononuclear Metallocenes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 1996. [DOI: 10.1016/s0065-3055(08)60533-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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Elfeninat F, Fredriksson C, Sacher E, Selmani A. A theoretical investigation of the interactions between thiophene and vanadium, chromium, copper, and gold. J Chem Phys 1995. [DOI: 10.1063/1.469349] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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38
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Phillips L, Dennis GR. The electronic polarizability distribution of several substituted ferrocenes and Di(η6-benzene)chromium. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/dt9950001469] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pagel K, Werner A, Friedrichsen W. Ferrocene und Ferrocenophane mit dipolaren Strukturelementen. J Organomet Chem 1994. [DOI: 10.1016/0022-328x(94)24550-9] [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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An all-electron and effective core potential study of the effects of electron correlation on the Group 7 complexes [(C6H6)X(CO)3]+, with X Mn, Tc, Re. J Organomet Chem 1994. [DOI: 10.1016/0022-328x(94)88169-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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41
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Kudo T, Nagase S. Theoretical study of the persilacyclopentadienyl sandwich compound, (Si5H5)2Fe. J Mol Struct 1994. [DOI: 10.1016/s0022-2860(10)80020-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Margl P, Schwarz K, Blöchl PE. Finite‐temperature characterization of ferrocene from first‐principles molecular dynamics simulations. J Chem Phys 1994. [DOI: 10.1063/1.466814] [Citation(s) in RCA: 45] [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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43
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Deng L, Ziegler T, Fan L. A combined density functional and intrinsic reaction coordinate study on the ground state energy surface of H2CO. J Chem Phys 1993. [DOI: 10.1063/1.466129] [Citation(s) in RCA: 112] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Daul C, Güdel H, Weber J. A density functional investigation of the ground‐ and excited‐state properties of ruthenocene. J Chem Phys 1993. [DOI: 10.1063/1.464032] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Veldkamp A, Frenking G. Theoretical studies of organometallic compounds. III. Structures and bond energies of FeCHn and FeCHn+ (n = 1, 2, 3). J Comput Chem 1992. [DOI: 10.1002/jcc.540131003] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Schaumberger M, Köhler J. Charge distributions of phosphorylcholine and its derivatives. J Comput Chem 1992. [DOI: 10.1002/jcc.540130306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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47
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Modelization of the protonation of ferrocene using an effective potential parametrized from local-spin density and Hartree—Fock calculations. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)86097-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Veldkamp A, Frenking G. Surprisingly high accuracy of ECP methods for predicting Fe–C bond dissociation energies of FeCH3+, FeCH2+and FeCH+. ACTA ACUST UNITED AC 1992. [DOI: 10.1039/c39920000118] [Citation(s) in RCA: 7] [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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Fan L, Ziegler T. Optimization of molecular structures by self‐consistent and nonlocal density‐functional theory. J Chem Phys 1991. [DOI: 10.1063/1.461366] [Citation(s) in RCA: 249] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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