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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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3
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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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4
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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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5
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Gordon C, Yamamoto K, Liao WC, Allouche F, Andersen RA, Copéret C, Raynaud C, Eisenstein O. Metathesis Activity Encoded in the Metallacyclobutane Carbon-13 NMR Chemical Shift Tensors. ACS CENTRAL SCIENCE 2017; 3:759-768. [PMID: 28776018 PMCID: PMC5532720 DOI: 10.1021/acscentsci.7b00174] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Indexed: 06/02/2023]
Abstract
Metallacyclobutanes are an important class of organometallic intermediates, due to their role in olefin metathesis. They can have either planar or puckered rings associated with characteristic chemical and physical properties. Metathesis active metallacyclobutanes have short M-Cα/α' and M···Cβ distances, long Cα/α'-Cβ bond length, and isotropic 13C chemical shifts for both early d0 and late d4 transition metal compounds for the α- and β-carbons appearing at ca. 100 and 0 ppm, respectively. Metallacyclobutanes that do not show metathesis activity have 13C chemical shifts of the α- and β-carbons at typically 40 and 30 ppm, respectively, for d0 systems, with upfield shifts to ca. -30 ppm for the α-carbon of metallacycles with higher d n electron counts (n = 2 and 6). Measurements of the chemical shift tensor by solid-state NMR combined with an orbital (natural chemical shift, NCS) analysis of its principal components (δ11 ≥ δ22 ≥ δ33) with two-component calculations show that the specific chemical shift of metathesis active metallacyclobutanes originates from a low-lying empty orbital lying in the plane of the metallacyclobutane with local π*(M-Cα/α') character. Thus, in the metathesis active metallacyclobutanes, the α-carbons retain some residual alkylidene character, while their β-carbon is shielded, especially in the direction perpendicular to the ring. Overall, the chemical shift tensors directly provide information on the predictive value about the ability of metallacyclobutanes to be olefin metathesis intermediates.
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Affiliation(s)
- Christopher
P. Gordon
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Keishi Yamamoto
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Wei-Chih Liao
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Florian Allouche
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Richard A. Andersen
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Christophe Copéret
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Christophe Raynaud
- Institut
Charles
Gerhardt, UMR 5253 CNRS-Université de Montpellier, Université de Montpellier, 34095 Montpellier, France
| | - Odile Eisenstein
- Institut
Charles
Gerhardt, UMR 5253 CNRS-Université de Montpellier, Université de Montpellier, 34095 Montpellier, France
- Centre
for Theoretical and Computational Chemistry (CTCC), Department of
Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway
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6
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Affiliation(s)
- Benjamin G. Harvey
- US Navy Naval Air Warfare Center Weapons Division (NAWCWD) Research Department Chemistry Division 93555 China Lake California USA
| | - Richard D. Ernst
- Inorganic Chemistry Department of Chemistry University of Utah 84112 Salt Lake City Utah USA
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7
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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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8
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Investigation of agostic interaction through NBO analysis and its impact on β-hydride elimination and dehydrogenation: a DFT approach. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1939-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Ananyev IV, Lyssenko KA. A chemist's point of view: the noncylindrical symmetry of electron density means nothing but still means something. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.07.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Jabłoński M. Geometry- and QTAIM-Based Comparison of Intramolecular Charge-Inverted Hydrogen Bonds, M···(H–Si) “Agostic Bond”, and M···(η2-SiH) σ Interactions. J Phys Chem A 2015; 119:11384-96. [DOI: 10.1021/acs.jpca.5b07013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mirosław Jabłoński
- Department of Quantum Chemistry, Nicolaus Copernicus University in Toruń, 7-Gagarina St., PL-87
100 Toruń, Poland
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11
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Jabłoński M. QTAIM-based comparison of agostic bonds and intramolecular charge-inverted hydrogen bonds. J Phys Chem A 2015; 119:4993-5008. [PMID: 25901650 DOI: 10.1021/acs.jpca.5b02041] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using DFT-based calculations with seven exchange-correlation functionals (BP86, B3LYP, B3PW91, PBE0, TPSSh, M06-L, M06) we have performed comparative studies on α-, β-, γ-, and δ-agostic bonds (ABs) and intramolecular charge-inverted hydrogen bonds (IMCIHBs). Our detailed analysis of values of QTAIM parameters computed at bond (BCP) and ring critical points (RCP) as well as of the curvatures of bond paths tracing agostic bonds and intramolecular charge-inverted hydrogen bonds gives the opportunity to distinguish between both these types of interactions. In the case of molecules with agostic bonds, the BCP is significantly closer to the agostic hydrogen, whereas in systems with IMCIHB the BCP is, instead, somewhat closer to the metal atom. Agostic bonds are characterized by H···M bond paths being straight in the BCP···M section and then highly curved near the agostic hydrogen, whereas in the case of IMCIHB any substantial curvature of BP in the vicinity of hydrogen is not present. Quite the contrary, the significant curvature of BP near the metal atom can be obtained, instead. One can also distinguish IMCIHBs and ABs on the basis of values of bond ellipticity at BCP and the electron density at RCP which are either somewhat (PBE0) or considerably (M06) greater for the latter type of interaction. It has also been shown that, in general, the exchange-correlation functional has small influences on most of QTAIM parameters computed at BCP and RCP. More significant influences have only been obtained for Laplacian of the electron density, some its components, and the bond ellipticity.
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Affiliation(s)
- Mirosław Jabłoński
- Department of Quantum Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7-Gagarina St., PL-87 100 Toruń, Poland
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12
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Kirby IL, Pitak MB, Coles SJ, Gale PA. Systematic Experimental Charge Density: Linking Structural Modifications to Electron Density Distributions. CHEM LETT 2015. [DOI: 10.1246/cl.140929] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Remya PR, Suresh CH. Hypercoordinate β-carbon in Grubbs and Schrock olefin metathesis metallacycles. Dalton Trans 2015; 44:17660-72. [DOI: 10.1039/c5dt02801a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
From the analysis of structural, bond order, electron density and 13C NMR data of a large variety of ruthenacyclobutanes and tungstenacyclobutanes, we show that the Cβ of the metallacycle is pentacoordinate.
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Affiliation(s)
- Premaja R. Remya
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum 695 019
- India
- Academy of Scientific & Innovative Research
| | - Cherumuttathu H. Suresh
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum 695 019
- India
- Academy of Scientific & Innovative Research
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14
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Jabłoński M. Charge-inverted hydrogen bond vs. other interactions possessing a hydridic hydrogen atom. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.01.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Kirby IL, Brightwell M, Pitak MB, Wilson C, Coles SJ, Gale PA. Systematic experimental charge density analysis of anion receptor complexes. Phys Chem Chem Phys 2014; 16:10943-58. [DOI: 10.1039/c3cp54858a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first systematic electronic resolution study of a series of urea-based anion receptor complexes is presented and shows the binding strength to be greater for more basic anion–receptor pairs in the solid state.
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Affiliation(s)
| | | | | | - Claire Wilson
- Diamond Light Source
- Diamond House
- Harwell Science and Innovation Campus
- Didcot, UK
| | | | - Philip A. Gale
- Chemistry
- University of Southampton
- Southampton, UK
- Department of Chemistry
- Faculty of Science
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16
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Etienne M, Weller AS. Intramolecular C–C agostic complexes: C–C sigma interactions by another name. Chem Soc Rev 2014; 43:242-59. [DOI: 10.1039/c3cs60295h] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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17
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The influence of phosphine cone angle on the synthesis and structures of [Rh(PR3)(Binor–S)]+ complexes that show C–C sigma interactions. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.09.013] [Citation(s) in RCA: 16] [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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18
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Fecker AC, Glöckner A, Daniliuc CG, Freytag M, Jones PG, Walter MD. Synthesis and Coordination Chemistry of an Enantiomerically Pure Pentadienyl Ligand. Organometallics 2013. [DOI: 10.1021/om301189g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ann Christin Fecker
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Andreas Glöckner
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Constantin G. Daniliuc
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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19
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Chopra D. Advances in understanding of chemical bonding: inputs from experimental and theoretical charge density analysis. J Phys Chem A 2012; 116:9791-801. [PMID: 22928665 DOI: 10.1021/jp306169f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The development of charge density analysis has undergone a major renaissance in the last two decades. In recent years, the characterization of bonding features associated with atoms in molecules and in crystals has been explored using high-resolution X-ray diffraction data (laboratory or synchrotron) complemented by high level ab initio theoretical calculations. The extraction of one electron topological properties, namely, electrostatic charges, dipole moment and higher moments, electrostatic potential, electric field gradients, in addition to evaluation of the local kinetic and potential energy densities, have contributed toward an understanding of the electron density distributions in molecular solids. New topological descriptors, namely, the source function (SF) and electron localization function (ELF) provide additional information as regards characterization of the topology of the electron density. In addition, delocalization indices have also been developed to account for bonding features pertinent to M-M bonds. The evaluation of these properties have contributed significantly toward the understanding of intra- and intermolecular bonding features in organic, inorganic, and biomolecules in the crystalline phase, with concomitant applications in the understanding of chemical reactivity and material/biological properties. In recent years, the focus has strongly shifted toward the understanding of structure-property relationships in organometallic complexes containing labile M-C bonds in the crystal structure with subsequent implications in catalysis. This perspective aims to highlight the major developments in electron density measurements in the past few years and provides pointers directed toward the potential use of this technique in future applications for an improved understanding of chemical bonding in systems that have been unexplored.
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Affiliation(s)
- Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal 462023, India.
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20
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21
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Jabłoński M, Palusiak M. Nature of a hydride-halogen bond. A SAPT-, QTAIM-, and NBO-based study. J Phys Chem A 2012; 116:2322-32. [PMID: 22288370 DOI: 10.1021/jp211606t] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The nature of a hydride-halogen bond is investigated by means of high-level quantum mechanical calculations expended with symmetry-adapted perturbation theory (SAPT), quantum theory of atoms in molecules (QTAIM), and natural bond orbital (NBO) methods. As model hydride-halogen bonded systems complexes between either LiH or HBeH and either XCF(3) or XCCH (X = F, Cl, Br, I) are used. It is shown that the formation of a hydride-halogen bond leads to the elongation of the R(δ+)-H(δ-) hydride bond, which is accompanied by the blue shift of the ν(R-H) stretching vibration frequency and the increase of the IR intensity of this mode. All these effects, although untypical in the case of, e.g., hydrogen bonds, can be considered as rather typical for hydride-halogen bonded systems. The decomposition of the interaction energy based on the SAPT method clearly indicates the dominant role of the induction term, thus the inductive nature of a hydride-halogen bond in opposition to previous findings. NBO-based analysis indicates the charge transfer from the hydride molecule to the more remote parts of the halogen donor and that the elongation of the R-H bond is caused by the charge outflow from the σ(RH) bonding orbital.
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Affiliation(s)
- Mirosław Jabłoński
- Department of Quantum Chemistry, Nicolaus Copernicus University, Toruń, Poland.
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22
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Escudié Y, Dinoi C, Allen O, Vendier L, Etienne M. An Unsymmetrical bis CC Agostic Heterobimetallic Lithium Yttrium Complex. Angew Chem Int Ed Engl 2012; 51:2461-4. [DOI: 10.1002/anie.201107870] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 12/20/2011] [Indexed: 11/08/2022]
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23
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Escudié Y, Dinoi C, Allen O, Vendier L, Etienne M. An Unsymmetrical bis CC Agostic Heterobimetallic Lithium Yttrium Complex. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107870] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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On the Nature of β-Agostic Interactions: A Comparison Between the Molecular Orbital and Charge Density Picture. STRUCTURE AND BONDING 2012. [DOI: 10.1007/978-3-642-30802-4_77] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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25
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Montag M, Efremenko I, Diskin-Posner Y, Ben-David Y, Martin JML, Milstein D. Exclusive C–C Oxidative Addition in a Rhodium Thiophosphoryl Pincer Complex and Computational Evidence for an η3-C–C–H Agostic Intermediate. Organometallics 2011. [DOI: 10.1021/om201205y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Michael Montag
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76000, Israel
| | - Irena Efremenko
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76000, Israel
| | - Yael Diskin-Posner
- Department of Chemical Research
Support, Weizmann Institute of Science,
Rehovot 76000, Israel
| | - Yehoshoa Ben-David
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76000, Israel
| | - Jan M. L. Martin
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76000, Israel
| | - David Milstein
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76000, Israel
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Nakanishi W, Hayashi S, Pitak MB, Hursthouse MB, Coles SJ. Dynamic and Static Behaviors of N–Z–N σ(3c–4e) (Z = S, Se, and Te) Interactions: Atoms-in-Molecules Dual Functional Analysis with High-Resolution X-ray Diffraction Determination of Electron Densities for 2-(2-Pyridylimino)-2H-1,2,4-thiadiazolo[2,3-a]pyridine. J Phys Chem A 2011; 115:11775-87. [DOI: 10.1021/jp2044898] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Waro Nakanishi
- Department of Material Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama, 640-8510 Japan
| | - Satoko Hayashi
- Department of Material Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama, 640-8510 Japan
| | - Mateusz B. Pitak
- School of Chemistry, University of Southampton, Highfield Campus, Southampton SO17 1BJ, United Kingdom
| | - Michael B. Hursthouse
- School of Chemistry, University of Southampton, Highfield Campus, Southampton SO17 1BJ, United Kingdom
| | - Simon J. Coles
- School of Chemistry, University of Southampton, Highfield Campus, Southampton SO17 1BJ, United Kingdom
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27
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Chaplin AB, Green JC, Weller AS. C-C activation in the solid state in an organometallic σ-complex. J Am Chem Soc 2011; 133:13162-8. [PMID: 21736363 DOI: 10.1021/ja2047599] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Herein is reported the synthesis, by a solid-state reaction from [Ir(NBD)(2)(P(i)Pr(3))][BAr(F)(4)], of the first example of a C-C σ-complex with iridium, [Ir(BINOR-S)(P(i)Pr(3))][BAr(F)(4)]. This compound is unique in that in the solid state it undergoes reversible activation of the C-C single bond that interacts with the metal center, establishing a temperature-dependent equilibrium between Ir(III) C-C σ/Ir(V) bis-alkyl complexes. This process has been interrogated by variable-temperature X-ray diffraction, NMR spectroscopy, and DFT calculations.
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Affiliation(s)
- Adrian B Chaplin
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, UK
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Deutsch M, Claiser N, Gillet JM, Lecomte C, Sakiyama H, Tone K, Souhassou M. d-Orbital orientation in a dimer cobalt complex: link to magnetic properties? ACTA CRYSTALLOGRAPHICA SECTION B: STRUCTURAL SCIENCE 2011; 67:324-32. [DOI: 10.1107/s0108768111022671] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Accepted: 06/12/2011] [Indexed: 11/11/2022]
Abstract
The experimental charge-density distribution of the dinuclear cobalt(II) complex [Co2(sym-hmp)2](BPh4)2·2H2O·2C3H6O was determined at 100 K. When decreasing the temperature, the magnetic susceptibility of this complex deviates from Curie law because of anti-ferromagnetic exchange interactions, but the susceptibility increases sharply at low temperature (< 20 K). To explain this magnetic behaviour a tilt angle between the Co-atom environments was previously theoretically predicted. The structure and experimental charge density determined in this study show a tilt angle. The calculated value, based on the 100 K experimental d-orbital model, is in agreement with the theoretical one.
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29
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Kamiński R, Herbaczyńska B, Srebro M, Pietrzykowski A, Michalak A, Jerzykiewicz LB, Woźniak K. On the nature of Ni···Ni interaction in a model dimeric Ni complex. Phys Chem Chem Phys 2011; 13:10280-4. [PMID: 21505665 DOI: 10.1039/c0cp01984d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A new dinuclear complex (NiC(5)H(4)SiMe(2)CHCH(2))(2) (2) was prepared by reacting nickelocene derivative [(C(5)H(4)SiMe(2)CH=CH(2))(2)Ni] (1) with methyllithium (MeLi). Good quality crystals were subjected to a high-resolution X-ray measurement. Subsequent multipole refinement yielded accurate description of electron density distribution. Detailed inspection of experimental electron density in Ni···Ni contact revealed that the nickel atoms are bonded and significant deformation of the metal valence shell is related to different populations of the d-orbitals. The existence of the Ni···Ni bond path explains the lack of unpaired electrons in the complex due to a possible exchange channel.
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Affiliation(s)
- Radosław Kamiński
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warszawa, Poland.
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30
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Scherer W, Herz V, Brück A, Hauf C, Reiner F, Altmannshofer S, Leusser D, Stalke D. The Nature of β‐Agostic Bonding in Late‐Transition‐Metal Alkyl Complexes. Angew Chem Int Ed Engl 2011; 50:2845-9. [DOI: 10.1002/anie.201006065] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Wolfgang Scherer
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Germany), Fax: (+49) 821‐598‐3227
| | - Verena Herz
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Germany), Fax: (+49) 821‐598‐3227
| | - Andreas Brück
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Germany), Fax: (+49) 821‐598‐3227
| | - Christoph Hauf
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Germany), Fax: (+49) 821‐598‐3227
| | - Florian Reiner
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Germany), Fax: (+49) 821‐598‐3227
| | - Sandra Altmannshofer
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Germany), Fax: (+49) 821‐598‐3227
- Institut für Anorganische Chemie, Georg‐August‐Universität Göttingen, Tammannstrasse 4, 37077 Göttingen (Germany)
| | - Dirk Leusser
- Institut für Anorganische Chemie, Georg‐August‐Universität Göttingen, Tammannstrasse 4, 37077 Göttingen (Germany)
| | - Dietmar Stalke
- Institut für Anorganische Chemie, Georg‐August‐Universität Göttingen, Tammannstrasse 4, 37077 Göttingen (Germany)
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Scherer W, Herz V, Brück A, Hauf C, Reiner F, Altmannshofer S, Leusser D, Stalke D. Über die Natur der β‐agostischen Bindung in späten Übergangsmetall‐Alkyl‐Komplexen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006065] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wolfgang Scherer
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Deutschland), Fax: (+49) 821‐598‐3227
| | - Verena Herz
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Deutschland), Fax: (+49) 821‐598‐3227
| | - Andreas Brück
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Deutschland), Fax: (+49) 821‐598‐3227
| | - Christoph Hauf
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Deutschland), Fax: (+49) 821‐598‐3227
| | - Florian Reiner
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Deutschland), Fax: (+49) 821‐598‐3227
| | - Sandra Altmannshofer
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg (Deutschland), Fax: (+49) 821‐598‐3227
- Institut für Anorganische Chemie, Georg‐August‐Universität Göttingen, Tammannstraße 4, 37077 Göttingen (Deutschland)
| | - Dirk Leusser
- Institut für Anorganische Chemie, Georg‐August‐Universität Göttingen, Tammannstraße 4, 37077 Göttingen (Deutschland)
| | - Dietmar Stalke
- Institut für Anorganische Chemie, Georg‐August‐Universität Göttingen, Tammannstraße 4, 37077 Göttingen (Deutschland)
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2009. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.07.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Sparkes HA, Krämer T, Brayshaw SK, Green JC, Weller AS, Howard JAK. Experimental charge density study into C–C σ-interactions in a Binor-S rhodium complex. Dalton Trans 2011; 40:10708-18. [DOI: 10.1039/c1dt10303b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Suresh CH, Frenking G. Direct 1−3 Metal−Carbon Bonding and Planar Tetracoordinated Carbon in Group 6 Metallacyclobutadienes. Organometallics 2010. [DOI: 10.1021/om100260p] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Cherumuttathu H. Suresh
- Fachbereich Chemie, Philipps-Universität
Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
- Computational Modeling and Simulation Section, National Institute for Interdisciplinary Science and Technology, Trivandrum 695 019, India
| | - Gernot Frenking
- Fachbereich Chemie, Philipps-Universität
Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
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35
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Glöckner A, Bannenberg T, Tamm M, Arif AM, Ernst RD. Cycloheptatrienyl-Pentadienyl Complexes of Zirconium (Half-Open Trozircenes): Syntheses, Structures, Bonding, and Chemistry. Organometallics 2009. [DOI: 10.1021/om900456s] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Andreas Glöckner
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany
| | - Atta M. Arif
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
| | - Richard D. Ernst
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
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