1
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Tahara K, Morino T, Morimoto Y, Nakamura Y, Sugimoto K, Ozawa Y, Abe M. Synthetic, Electrochemical, DFT, and Synchrotron X-ray Charge-Density Studies on Oxo-centered Triruthenium Clusters Supported by Electron-Withdrawing Carboxylates. Inorg Chem 2024. [PMID: 39330546 DOI: 10.1021/acs.inorgchem.4c02381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
We herein report the synthesis, characterizations, and synchrotron X-ray charge-density studies of oxo-centered triruthenium(II,III,III) clusters [Ru3O(CHCl2COO)6(py)3] (1) and [Ru3O(CHCl2COO)6(CO)(py)2] (2) (py = pyridine). Dichloroacetate was chosen for its large scattering factor of the Cl atom, and its electron-withdrawing nature results in significant stabilization of the targeted lower-valent Ru3II,III,III state in the cluster framework. Multipole analysis revealed that the difference in electron populations between two crystallographically independent Ru centers is small for 1 (Δ = 0.30 e) but large for 2 (Δ = 1.46 e). Remarkable differences between 1 and 2 are also found in their static deformation density maps; substantial local charge depletion was found around the central μ3O atom for 1, which is less pronounced for 2. According to the topological characterization of Ru-μ3O bonds associated with the bond critical point, bcp, the electron density, ρbcp, is in the range of 0.79-0.89 e Å-3, and the total energy density, Hbcp, is in the range of -0.21 to -0.05 hartree Å-3. These findings represent the first charge-density distribution analysis of mixed-valence multinuclear Ru complexes including comparison between 3d and 4d transition-metal systems.
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Affiliation(s)
- Keishiro Tahara
- Graduate School of Science, University of Hyogo, 3-2-1, Koto, Kamigori-cho, Ako-gun 678-1297, Hyogo, Japan
| | - Takashi Morino
- Graduate School of Science, University of Hyogo, 3-2-1, Koto, Kamigori-cho, Ako-gun 678-1297, Hyogo, Japan
| | - Yuto Morimoto
- Faculty of Science, University of Hyogo, 3-2-1, Koto, Kamigori-cho, Ako-gun 678-1297, Hyogo, Japan
| | - Yuiga Nakamura
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute, 1-1-1 Koto, Sayo-cho, Sayo-gun 679-5198, Hyogo, Japan
| | - Kunihisa Sugimoto
- Research & Utilization Division, Japan Synchrotron Radiation Research Institute, 1-1-1 Koto, Sayo-cho, Sayo-gun 679-5198, Hyogo, Japan
- Department of Chemistry, Faculty of Science and Technology, Kindai University, 3-4-1 Kowakae, Higashiosaka 577-8502, Osaka, Japan
| | - Yoshiki Ozawa
- Graduate School of Science, University of Hyogo, 3-2-1, Koto, Kamigori-cho, Ako-gun 678-1297, Hyogo, Japan
| | - Masaaki Abe
- Graduate School of Science, University of Hyogo, 3-2-1, Koto, Kamigori-cho, Ako-gun 678-1297, Hyogo, Japan
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2
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Khan FST, Waldbusser AL, Carrasco MC, Pourhadi H, Hematian S. Synthetic, spectroscopic, structural, and electrochemical investigations of ferricenium derivatives with weakly coordinating anions: ion pairing, substituent, and solvent effects. Dalton Trans 2021; 50:7433-7455. [PMID: 33970173 DOI: 10.1039/d1dt01192h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A facile and effective strategy for the preparation of a series of ferricenium complexes bearing either electron-donating or electron-withdrawing substituents with weakly coordinating anions such as [B(C6F5)4]- or SbF6- is reported. These systems were thoroughly investigated for their ground state electronic structures in both solution and solid states using infrared (IR) and nuclear magnetic resonance (NMR) spectroscopies as well as single crystal X-ray crystallography and electrochemical measurements. The X-ray structures of the six electron-deficient ferricenium derivatives are of particular interest as only a handful (∼5) of such derivatives have been structurally characterized to date. Comparison of the structural data for both neutral and oxidized derivatives reveals that the nature of the substituents on the cyclopentadienyl (Cp) ligands displays a more significant impact on the metal-ligand separations (FeCt) in the oxidized species than in their neutral analogs. Our 1H-NMR measurements corroborate that in the neutral ferrocene derivatives, electron-donating ring substitutions lead to a greater shielding of the ring protons while electron-withdrawing groups via induction deshield the nearby ring protons. However, the data for the paramagnetic ferricenium derivatives reveals that this substitutional behavior is more complex and fundamentally reversed, which is further supported by our structural studies. We ascribe this reversal of behavior in the ferricenium derivatives to the δ back-donation from the iron atom into the Cp rings which can lead to the overall shielding of the ring protons. Interestingly, our NMR results for the electron-deficient ferricenium derivatives in solution also indicate a direct correlation between the solvent dielectric constant and the energy barrier for rotation around the metal-ligand bond in these systems, whereas such a correlation is absent or not significant in the case of the electron-rich ferricenium species or the corresponding neutral ferrocene analogs. In this work, we also present the electrochemical behavior of the corresponding ferricenium/ferrocene redox couples including potential values (E1/2), peak-to-peak separation (ΔE1/2), and diffusion coefficients (D) of the redox active species in order to provide a concise outline of these data in one place. Our electrochemical studies involved three different solvents and two supporting electrolytes. Notably, our findings point to the significant effect of ion-pairing in lowering the energy necessary for reduction of the ferricenium ion and E1/2 in lower-polarity media. This has significant implications in applications of the ferrocene or ferricenium derivatives as redox agents in low-polarity solvents where an accurate determination of redox potential is critical.
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Affiliation(s)
- Firoz Shah Tuglak Khan
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA.
| | - Amy L Waldbusser
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA.
| | - Maria C Carrasco
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA.
| | - Hadi Pourhadi
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA.
| | - Shabnam Hematian
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA.
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3
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Shteingolts SA, Saifina AF, Saifina LF, Semenov VE, Fukin GK, Fayzullin RR. X-ray charge density study of the 6-methyluracil derivative in the crystal: Revealing, consequences, and multipole refinement of minor static disorder. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129724] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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4
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Experimental distribution of electron density in crystals of Ph3Sb(O2CCH=CH–CH=CH–CH3)2 complex: the selection of a reference point for the source function in the absence of a bond critical point between atoms. Struct Chem 2020. [DOI: 10.1007/s11224-020-01548-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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5
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6
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Swarts PJ, Conradie J. Solvent and substituent effect on electrochemistry of ferrocenylcarboxylic acids. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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7
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Ibrahimova NZ, Jafarov GM, Taghiev DB, Lyatifov IU. Crystal Structure of 1,2,4,1',2',4'-Hexamethylferrocene. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420010029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Fukin GK, Cherkasov AV, Baranov EV, Rumyantcev RV, Sazonova EV, Artemov AN. The Electron Density Distribution in Crystals of η
6
–[1,4–dihydrospiro(2
H
–3,1–benzoxazine–2,1′–cyclohexane)]tricarbonylchromium(0): Experiment
vs
Molecular Invariom. ChemistrySelect 2019. [DOI: 10.1002/slct.201901394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Georgy K. Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Anton V. Cherkasov
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Evgeny V. Baranov
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Roman V. Rumyantcev
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Elena V. Sazonova
- Chemical DepartmentLobachevsky State University of Nizhny Novgorod Gagarina Pr., 23, Nizhny Novgorod 603950 Russian Federation
| | - Alexander N. Artemov
- Chemical DepartmentLobachevsky State University of Nizhny Novgorod Gagarina Pr., 23, Nizhny Novgorod 603950 Russian Federation
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9
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Fukin GK, Cherkasov AV, Rumyantcev RV, Grishina NY, Sazonova EV, Artemov AN, Stash AI. Experimental study of X-ray charge density and the selection of reference points for a source function in η6-(2-methyl-1,4-dihydro-2H-3,1-benzoxazine)tricarbonylchromium(0). MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.05.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Genoni A, Bučinský L, Claiser N, Contreras-García J, Dittrich B, Dominiak PM, Espinosa E, Gatti C, Giannozzi P, Gillet JM, Jayatilaka D, Macchi P, Madsen AØ, Massa L, Matta CF, Merz KM, Nakashima PNH, Ott H, Ryde U, Schwarz K, Sierka M, Grabowsky S. Quantum Crystallography: Current Developments and Future Perspectives. Chemistry 2018; 24:10881-10905. [PMID: 29488652 DOI: 10.1002/chem.201705952] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/27/2018] [Indexed: 11/09/2022]
Abstract
Crystallography and quantum mechanics have always been tightly connected because reliable quantum mechanical models are needed to determine crystal structures. Due to this natural synergy, nowadays accurate distributions of electrons in space can be obtained from diffraction and scattering experiments. In the original definition of quantum crystallography (QCr) given by Massa, Karle and Huang, direct extraction of wavefunctions or density matrices from measured intensities of reflections or, conversely, ad hoc quantum mechanical calculations to enhance the accuracy of the crystallographic refinement are implicated. Nevertheless, many other active and emerging research areas involving quantum mechanics and scattering experiments are not covered by the original definition although they enable to observe and explain quantum phenomena as accurately and successfully as the original strategies. Therefore, we give an overview over current research that is related to a broader notion of QCr, and discuss options how QCr can evolve to become a complete and independent domain of natural sciences. The goal of this paper is to initiate discussions around QCr, but not to find a final definition of the field.
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Affiliation(s)
- Alessandro Genoni
- Université de Lorraine, CNRS, Laboratoire LPCT, 1 Boulevard Arago, F-57078, Metz, France
| | - Lukas Bučinský
- Institute of Physical Chemistry and Chemical Physics, Slovak University of Technology, FCHPT SUT, Radlinského 9, SK-812 37, Bratislava, Slovakia
| | - Nicolas Claiser
- Université de Lorraine, CNRS, Laboratoire CRM2, Boulevard des Aiguillettes, BP 70239, F-54506, Vandoeuvre-lès-Nancy, France
| | - Julia Contreras-García
- Sorbonne Universités, UPMC Université Paris 06, CNRS, Laboratoire de Chimie Théorique (LCT), 4 Place Jussieu, F-75252, Paris Cedex 05, France
| | - Birger Dittrich
- Anorganische und Strukturchemie II, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Paulina M Dominiak
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, ul. Żwirki i Wigury 101, 02-089, Warszawa, Poland
| | - Enrique Espinosa
- Université de Lorraine, CNRS, Laboratoire CRM2, Boulevard des Aiguillettes, BP 70239, F-54506, Vandoeuvre-lès-Nancy, France
| | - Carlo Gatti
- CNR-ISTM Istituto di Scienze e Tecnologie Molecolari, via Golgi 19, Milano, I-20133, Italy.,Istituto Lombardo Accademia di Scienze e Lettere, via Brera 28, 20121, Milano, Italy
| | - Paolo Giannozzi
- Department of Mathematics, Computer Science and Physics, University of Udine, Via delle Scienze 208, I-33100, Udine, Italy
| | - Jean-Michel Gillet
- Structure, Properties and Modeling of Solids Laboratory, CentraleSupelec, Paris-Saclay University, 3 rue Joliot-Curie, 91191, Gif-sur-Yvette, France
| | - Dylan Jayatilaka
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
| | - Piero Macchi
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012, Bern, Switzerland
| | - Anders Ø Madsen
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Lou Massa
- Hunter College & the Ph.D. Program of the Graduate Center, City University of New York, New York, USA
| | - Chérif F Matta
- Department of Chemistry and Physics, Mount Saint Vincent University, Halifax, Nova Scotia, B3M 2J6, Canada.,Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3, Canada.,Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, B3H 3C3, Canada.,Département de Chimie, Université Laval, Québec, QC G1V 0A6, Canada
| | - Kenneth M Merz
- Department of Chemistry and Department of Biochemistry and Molecular Biology, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan, 48824, USA.,Institute for Cyber Enabled Research, Michigan State University, 567 Wilson Road, Room 1440, East Lansing, Michigan, 48824, USA
| | - Philip N H Nakashima
- Department of Materials Science and Engineering, Monash University, Victoria, 3800, Australia
| | - Holger Ott
- Bruker AXS GmbH, Östliche Rheinbrückenstraße 49, 76187, Karlsruhe, Germany
| | - Ulf Ryde
- Department of Theoretical Chemistry, Lund University, Chemical Centre, P.O. Box 124, SE-22100, Lund, Sweden
| | - Karlheinz Schwarz
- Technische Universität Wien, Institut für Materialwissenschaften, Getreidemarkt 9, A-1060, Vienna, Austria
| | - Marek Sierka
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Löbdergraben 32, 07743, Jena, Germany
| | - Simon Grabowsky
- Fachbereich 2-Biologie/Chemie, Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Str. 3, 28359, Bremen, Germany
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11
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Pal R, Mebs S, Shi MW, Jayatilaka D, Krzeszczakowska JM, Malaspina LA, Wiecko M, Luger P, Hesse M, Chen YS, Beckmann J, Grabowsky S. Linear MgCp* 2 vs Bent CaCp* 2: London Dispersion, Ligand-Induced Charge Localizations, and Pseudo-Pregostic C-H···Ca Interactions. Inorg Chem 2018; 57:4906-4920. [PMID: 29671589 DOI: 10.1021/acs.inorgchem.7b03079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the family of metallocenes, MgCp*2 (Cp* = pentamethylcyclopentadienyl) exhibits a regular linear sandwich structure, whereas CaCp*2 is bent in both the gas phase and solid state. Bending is typically observed for metal ions which possess a lone pair. Here, we investigate which electronic differences cause the bending in complexes lacking lone pairs at the metal atoms. The bent gas-phase geometry of CaCp*2 suggests that the bending must have an intramolecular origin. Geometry optimizations with and without dispersion effects/d-type polarization functions on MCp2 and MCp*2 gas-phase complexes (M = Ca, Mg) establish that attractive methyl···methyl London dispersion interactions play a decisive role in the bending in CaCp*2. A sufficient polarizability of the metal to produce a shallow bending potential energy curve is a prerequisite but is not the reason for the bending. Concomitant ligand-induced charge concentrations and localizations at the metal atoms are studied in further detail, for which real-space bonding and orbital-based descriptors are used. Low-temperature crystal structures of MgCp*2 and CaCp*2 were determined which facilitated the identification and characterization of intermolecular pseudo-pregostic interactions, C-H···Ca, in the CaCp*2 crystal structure.
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Affiliation(s)
- Rumpa Pal
- Universität Bremen , Institut für Anorganische Chemie und Kristallographie , Leobener Straße 3 and 7 , 28359 Bremen , Germany
| | - Stefan Mebs
- Freie Universität Berlin , Institut für Experimentalphysik , Arnimallee 14 , 14195 Berlin , Germany
| | - Ming W Shi
- The University of Western Australia, School of Molecular Sciences , 35 Stirling Highway , Perth Western Australia 6009 , Australia
| | - Dylan Jayatilaka
- The University of Western Australia, School of Molecular Sciences , 35 Stirling Highway , Perth Western Australia 6009 , Australia
| | - Joanna M Krzeszczakowska
- University of Warsaw , Biological and Chemical Research Centre, Chemistry Department , Zwirki i Wigury 101 , 02-089 Warsaw , Poland
| | - Lorraine A Malaspina
- Universität Bremen , Institut für Anorganische Chemie und Kristallographie , Leobener Straße 3 and 7 , 28359 Bremen , Germany
| | - Michal Wiecko
- Freie Universität Berlin , Institut für Chemie und Biochemie, Anorganische Chemie , Fabeckstraße 36a , 14195 Berlin , Germany
| | - Peter Luger
- Freie Universität Berlin , Institut für Chemie und Biochemie, Anorganische Chemie , Fabeckstraße 36a , 14195 Berlin , Germany
| | - Malte Hesse
- Universität Bremen , Institut für Anorganische Chemie und Kristallographie , Leobener Straße 3 and 7 , 28359 Bremen , Germany
| | - Yu-Sheng Chen
- ChemMatCARS, Center for Advanced Radiation Sources, c/o Advanced Photon Source/ANL , The University of Chicago , 9700 South Cass Avenue , Building 434D, Argonne , Illinois 60439 , United States
| | - Jens Beckmann
- Universität Bremen , Institut für Anorganische Chemie und Kristallographie , Leobener Straße 3 and 7 , 28359 Bremen , Germany
| | - Simon Grabowsky
- Universität Bremen , Institut für Anorganische Chemie und Kristallographie , Leobener Straße 3 and 7 , 28359 Bremen , Germany
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12
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Abubekerov M, Khan SI, Diaconescu PL. Ferrocene-bis(phosphinimine) Nickel(II) and Palladium(II) Alkyl Complexes: Influence of the Fe–M (M = Ni and Pd) Interaction on Redox Activity and Olefin Coordination. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00626] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Mark Abubekerov
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Saeed I. Khan
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
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13
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Mackenzie CF, Spackman PR, Jayatilaka D, Spackman MA. CrystalExplorer model energies and energy frameworks: extension to metal coordination compounds, organic salts, solvates and open-shell systems. IUCRJ 2017; 4:575-587. [PMID: 28932404 PMCID: PMC5600021 DOI: 10.1107/s205225251700848x] [Citation(s) in RCA: 584] [Impact Index Per Article: 83.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 06/07/2017] [Indexed: 05/22/2023]
Abstract
The application domain of accurate and efficient CE-B3LYP and CE-HF model energies for intermolecular interactions in molecular crystals is extended by calibration against density functional results for 1794 molecule/ion pairs extracted from 171 crystal structures. The mean absolute deviation of CE-B3LYP model energies from DFT values is a modest 2.4 kJ mol-1 for pairwise energies that span a range of 3.75 MJ mol-1. The new sets of scale factors determined by fitting to counterpoise-corrected DFT calculations result in minimal changes from previous energy values. Coupled with the use of separate polarizabilities for interactions involving monatomic ions, these model energies can now be applied with confidence to a vast number of molecular crystals. Energy frameworks have been enhanced to represent the destabilizing interactions that are important for molecules with large dipole moments and organic salts. Applications to a variety of molecular crystals are presented in detail to highlight the utility and promise of these tools.
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Affiliation(s)
- Campbell F. Mackenzie
- School of Molecular Sciences, University of Western Australia, Perth, 6009, Australia
| | - Peter R. Spackman
- School of Molecular Sciences, University of Western Australia, Perth, 6009, Australia
| | - Dylan Jayatilaka
- School of Molecular Sciences, University of Western Australia, Perth, 6009, Australia
| | - Mark A. Spackman
- School of Molecular Sciences, University of Western Australia, Perth, 6009, Australia
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14
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Cabrera KD, Rowland AT, Szarko JM, Diaconescu PL, Bezpalko MW, Kassel WS, Nataro C. Monodentate phosphine substitution in [Pd(κ3-dppf)(PR3)][BF4]2 (dppf = 1,1′-bis(diphenylphosphino)ferrocene) compounds. Dalton Trans 2017; 46:5702-5710. [DOI: 10.1039/c6dt04921d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The synthesis and dissociative monodentate phosphine substitution of [Pd(κ3-dppf)(P(p-C6H4R)3)][BF4]2 compounds is presented. DFT calculations further examines the nature of the Fe–Pd interaction of the κ3-dppf ligand.
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Affiliation(s)
| | | | - J. M. Szarko
- Department of Chemistry
- Lafayette College
- Easton
- USA
| | - P. L. Diaconescu
- Department of Chemistry & Biochemistry
- University of California
- Los Angeles
- USA
| | - M. W. Bezpalko
- Department of Chemistry & Biochemistry
- Villanova University
- Villanova
- USA
| | - W. S. Kassel
- Department of Chemistry & Biochemistry
- Villanova University
- Villanova
- USA
| | - C. Nataro
- Department of Chemistry
- Lafayette College
- Easton
- USA
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15
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Fukin GK, Cherkasov AV, Yu. Zarovkina N, Artemov AN. Experimental and Theoretical AIM and NCI Index Study of Substituted Arene Tricarbonyl Complexes of Chromium(0). ChemistrySelect 2016. [DOI: 10.1002/slct.201601100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Georgy K. Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina str., 49 Nizhny Novgorod Russia 603137
| | - Anton V. Cherkasov
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina str., 49 Nizhny Novgorod Russia 603137
| | - Natalia Yu. Zarovkina
- N.I. Lobachevsky Nizhny Novgorod State University; Gagarina av., 23 Nizhny Novgorod Russia 603950
| | - Alexander N. Artemov
- N.I. Lobachevsky Nizhny Novgorod State University; Gagarina av., 23 Nizhny Novgorod Russia 603950
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16
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Bourke JD, Islam MT, Best SP, Tran CQ, Wang F, Chantler CT. Conformation Analysis of Ferrocene and Decamethylferrocene via Full-Potential Modeling of XANES and XAFS Spectra. J Phys Chem Lett 2016; 7:2792-2796. [PMID: 27391765 DOI: 10.1021/acs.jpclett.6b01382] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Recent high-accuracy X-ray absorption measurements of the sandwich organometallics ferrocene (Fc) and decamethylferrocene (DmFc) at temperatures close to liquid helium are compared with new full-potential modeling of X-ray absorption fine structure (XAFS) covering the near-edge region (XANES) and above up to k = 7 Å(-1). The implementation of optimized calculations of the oscillatory part of the spectrum from the package FDMX allows detailed study of the spectra in regions of the photoelectron momentum most sensitive to differences in the molecular stereochemistry. For Fc and DmFc, this corresponds to the relative rotation of the cyclopentadienyl rings. When applied to high-accuracy XAFS of Fc and DmFc, the FDMX theory gives clear evidence for the eclipsed conformation for Fc and the staggered conformation for DmFc for frozen solutions at ca. 15 K. This represents the first clear experimental assignment of the solution structures of Fc and DmFc and reveals the potential of high-accuracy XAFS for structural analysis.
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Affiliation(s)
| | | | | | - C Q Tran
- School of Physics, La Trobe University , Melbourne, Victoria 3086, Australia
| | - F Wang
- Department of Chemistry and Biotechnology, Swinburne University of Technology , Hawthorn, Victoria 3122, Australia
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17
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Blass BL, Hernández Sánchez R, Decker VA, Robinson MJ, Piro NA, Kassel WS, Diaconescu PL, Nataro C. Structural, Computational, and Spectroscopic Investigation of [Pd(κ3-1,1′-bis(di-tert-butylphosphino)ferrocenediyl)X]+ (X = Cl, Br, I) Compounds. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00889] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brittany L. Blass
- Department
of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Raúl Hernández Sánchez
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, .United States
| | - Victoria A. Decker
- Department
of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Michael J. Robinson
- Department
of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Nicholas A. Piro
- Department
of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
| | - W. Scott Kassel
- Department
of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
| | - Paula L. Diaconescu
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Chip Nataro
- Department
of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
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18
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Roemer M, Skelton BW, Piggott MJ, Koutsantonis GA. 1,1′-Diacetyloctamethylferrocene: an overlooked and overdue synthon leading to the facile synthesis of an octamethylferrocenophane. Dalton Trans 2016; 45:18817-18821. [DOI: 10.1039/c6dt03820d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surprisingly easy access to versatile synthons: high yielding acylation, chloroformylation and intramolecular cyclisation reaction to a ferrocenophane.
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Affiliation(s)
- Max Roemer
- Chemistry
- M310
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
| | - Brian W. Skelton
- Centre for Microscopy
- Characterisation and Analysis
- University of Western Australia
- Crawley
- Australia
| | - Matthew J. Piggott
- Chemistry
- M310
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
| | - George A. Koutsantonis
- Chemistry
- M310
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
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19
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Sanjuan-Szklarz WF, Hoser AA, Gutmann M, Madsen AØ, Woźniak K. Yes, one can obtain better quality structures from routine X-ray data collection. IUCRJ 2016; 3:61-70. [PMID: 26870382 PMCID: PMC4704080 DOI: 10.1107/s2052252515020941] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 11/04/2015] [Indexed: 05/29/2023]
Abstract
Single-crystal X-ray diffraction structural results for benzidine dihydrochloride, hydrated and protonated N,N,N,N-peri(dimethylamino)naphthalene chloride, triptycene, dichlorodimethyltriptycene and decamethylferrocene have been analysed. A critical discussion of the dependence of structural and thermal parameters on resolution for these compounds is presented. Results of refinements against X-ray data, cut off to different resolutions from the high-resolution data files, are compared to structural models derived from neutron diffraction experiments. The Independent Atom Model (IAM) and the Transferable Aspherical Atom Model (TAAM) are tested. The average differences between the X-ray and neutron structural parameters (with the exception of valence angles defined by H atoms) decrease with the increasing 2θmax angle. The scale of differences between X-ray and neutron geometrical parameters can be significantly reduced when data are collected to the higher, than commonly used, 2θmax diffraction angles (for Mo Kα 2θmax > 65°). The final structural and thermal parameters obtained for the studied compounds using TAAM refinement are in better agreement with the neutron values than the IAM results for all resolutions and all compounds. By using TAAM, it is still possible to obtain accurate results even from low-resolution X-ray data. This is particularly important as TAAM is easy to apply and can routinely be used to improve the quality of structural investigations [Dominiak (2015 ▸). LSDB from UBDB. University of Buffalo, USA]. We can recommend that, in order to obtain more adequate (more accurate and precise) structural and displacement parameters during the IAM model refinement, data should be collected up to the larger diffraction angles, at least, for Mo Kα radiation to 2θmax = 65° (sin θmax/λ < 0.75 Å(-1)). The TAAM approach is a very good option to obtain more adequate results even using data collected to the lower 2θmax angles. Also the results of translation-libration-screw (TLS) analysis and vibrational entropy values are more reliable for 2θmax > 65°.
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Affiliation(s)
- W. Fabiola Sanjuan-Szklarz
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Anna A. Hoser
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Matthias Gutmann
- Rutherford Appleton Laboratory, ISIS Facility, Chilton, Didcot, Oxfordshire OX11 OQX, UK
| | - Anders Østergaard Madsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
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20
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Chung JY, Schulz C, Bauer H, Sun Y, Sitzmann H, Auerbach H, Pierik AJ, Schünemann V, Neuba A, Thiel WR. Cyclopentadienide Ligand CpC– Possessing Intrinsic Helical Chirality and Its Ferrocene Analogues. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00673] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jae-Yeon Chung
- Fachbereich
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Christian Schulz
- Fachbereich
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Heiko Bauer
- Fachbereich
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Yu Sun
- Fachbereich
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Helmut Sitzmann
- Fachbereich
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Hendrik Auerbach
- Fachbereich
Physik, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
46, 67663 Kaiserslautern, Germany
| | - Antonio J. Pierik
- Fachbereich
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
| | - Volker Schünemann
- Fachbereich
Physik, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
46, 67663 Kaiserslautern, Germany
| | - Adam Neuba
- Department
Chemie, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | - Werner R. Thiel
- Fachbereich
Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße
54, 67663 Kaiserslautern, Germany
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21
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Islam S, Wang F. The d-electrons of Fe in ferrocene: the excess orbital energy spectrum (EOES). RSC Adv 2015. [DOI: 10.1039/c4ra14506b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The EOES (Δεi=εE-Fci −εS-Fci) shows that the orbitals with significantly excess energies are Fe d-electron dominant.
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Affiliation(s)
- Shawkat Islam
- Molecular Model Discovery Laboratory
- Department of Chemistry and Biotechnology
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Melbourne
| | - Feng Wang
- Molecular Model Discovery Laboratory
- Department of Chemistry and Biotechnology
- Faculty of Science, Engineering and Technology
- Swinburne University of Technology
- Melbourne
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22
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Duhović S, Oria JV, Odoh SO, Schreckenbach G, Batista ER, Diaconescu PL. Investigation of the Electronic Structure of Mono(1,1′-Diamidoferrocene) Uranium(IV) Complexes. Organometallics 2013. [DOI: 10.1021/om400521k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Selma Duhović
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Jeremy V. Oria
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Samuel O. Odoh
- Department
of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
| | - Georg Schreckenbach
- Department
of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
| | - Enrique R. Batista
- Los Alamos National Laboratory, Los
Alamos, New Mexico 87545, United States
| | - Paula L. Diaconescu
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
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23
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Gramigna KM, Oria JV, Mandell CL, Tiedemann MA, Dougherty WG, Piro NA, Kassel WS, Chan BC, Diaconescu PL, Nataro C. Palladium(II) and Platinum(II) Compounds of 1,1′-Bis(phosphino)metallocene (M = Fe, Ru) Ligands with Metal–Metal Interactions. Organometallics 2013. [DOI: 10.1021/om400494t] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kathryn M. Gramigna
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Jeremy V. Oria
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Chelsea L. Mandell
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Margaret A. Tiedemann
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - William G. Dougherty
- Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
| | - Nicholas A. Piro
- Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
| | - W. Scott Kassel
- Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
| | - Benny C. Chan
- Department of Chemistry, The College of New Jersey, Ewing, New Jersey 08628, United States
| | - Paula L. Diaconescu
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Chip Nataro
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
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24
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Salzner U. Quantitatively Correct UV-vis Spectrum of Ferrocene with TDB3LYP. J Chem Theory Comput 2013; 9:4064-73. [DOI: 10.1021/ct400322v] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ulrike Salzner
- Department of Chemistry, Bilkent University, 06800 Bilkent, Ankara, Turkey
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25
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Hey J, Andrada DM, Michel R, Mata RA, Stalke D. Ein kleiner Klavierstuhl-Komplex, geformt durch starke intermolekulare Wechselwirkungen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304498] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Hey J, Andrada DM, Michel R, Mata RA, Stalke D. Strong Intermolecular Interactions Shaping a Small Piano-Stool Complex. Angew Chem Int Ed Engl 2013; 52:10365-9. [DOI: 10.1002/anie.201304498] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Indexed: 11/10/2022]
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27
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Klapp LRR, Bruhn C, Leibold M, Siemeling U. Ferrocene-Based Bis(guanidines): Superbases for Tridentate N,Fe,N-Coordination. Organometallics 2013. [DOI: 10.1021/om400454v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lutz R. R. Klapp
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
| | - Clemens Bruhn
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
| | - Michael Leibold
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
| | - Ulrich Siemeling
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
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28
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Green AG, Kiesz MD, Oria JV, Elliott AG, Buechler AK, Hohenberger J, Meyer K, Zink JI, Diaconescu PL. Characterization of an Iron–Ruthenium Interaction in a Ferrocene Diamide Complex. Inorg Chem 2013; 52:5603-10. [DOI: 10.1021/ic400773s] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Aaron G. Green
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Matthew D. Kiesz
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Jeremy V. Oria
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Andrew G. Elliott
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Andrew K. Buechler
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Johannes Hohenberger
- Department of Chemistry and
Pharmacy, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Karsten Meyer
- Department of Chemistry and
Pharmacy, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Jeffrey I. Zink
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
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29
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Štěpnička P, Císařová I. Selective borane reduction of phosphinoferrocene carbaldehydes to phosphinoalcohol–borane adducts. The coordination behaviour of 1-(diphenylphosphino)- 1′-(methoxymethyl)ferrocene, a new ferrocene O,P-hybrid donor prepared from such an adduct. Dalton Trans 2013; 42:3373-89. [DOI: 10.1039/c2dt32511j] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Bogdanović GA, Novaković SB. Rigid ferrocene–ferrocene dimer as a common building block in the crystal structures of ferrocene derivatives. CrystEngComm 2011. [DOI: 10.1039/c1ce06212c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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