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Dutta A, Buxi K, Lakshan A, Mondal A, Wang F, Jana PP. Role of Partial Vacancy and Structural Distortion in the Stability of Nonstoichiometric Phases Ni 7-δInSe 2-xS x (1.26 ≥ δ ≥ 0.94; 0 ≤ x ≤ 1.33). Inorg Chem 2023; 62:17894-17904. [PMID: 37844287 DOI: 10.1021/acs.inorgchem.3c02718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
This study explores the structure and stability of partly disordered sulfur-substituted Ni5.74InSe2 (I4/mmm, a = 3.6766(1) Å, c = 18.8178(10) Å, Z = 2). The structure of Ni7-δInSe2-xSx (x = 0.2, 0.36, 0.66, 0.80, 0.94) compounds is isotypic to their parent Ni5.74InSe2 and can be viewed as alternating heterometallic Cu3Au-type ∞2[Ni3In] slabs and defective Cu2Sb-type ∞2[Ni4-δ(Se/S)2] slabs along the [001]-axis. Similar to the parent Se-compound, the Ni-Ch (Ch = chalcogen) fragment is non-stoichiometric and possesses a partially occupied Ni-site. It was observed that with sulfur insertion at the selenium site of Ni5.74InSe2, the interatomic distance between the partially occupied nickel and mixed (S/Se) sites decreases from ∼2.24 to ∼1.95 Å, and the occupancy of the disordered nickel site simultaneously increases. The limiting composition Ni6.06InSe0.67S1.33 (x = 1.33, δ = 0.94) is formed in the sulfur-rich region. Its average structure resembles the Ni6SnS2-type and has a similar motif to Ni5.74InSe2; the only difference is that Cu3Au-type ∞2[Ni3In] alternates with two types of Ni-Ch fragments (Cu2Sb or Li2O type units). By using first-principles electronic structure calculations, we explained the presence of partially disordered nickel sites in the Ni-Ch fragment and rationalized why the nickel site occupancy increases with sulfur insertion.
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Affiliation(s)
- Arnab Dutta
- Department of Chemistry, IIT Kharagpur, Kharagpur 721302, India
| | - Krishnendu Buxi
- Department of Chemistry, IIT Kharagpur, Kharagpur 721302, India
| | | | - Amit Mondal
- Department of Chemistry, IIT Kharagpur, Kharagpur 721302, India
| | - Fei Wang
- Chemistry and Biochemistry Department, Missouri State University, Springfield, Missouri 65897, United States
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2
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Lim A, Hilleke KP, Fredrickson DC. Emergent Transitions: Discord between Electronic and Chemical Pressure Effects in the REAl 3 ( RE = Sc, Y, Lanthanides) Series. Inorg Chem 2023; 62:4405-4416. [PMID: 36595300 DOI: 10.1021/acs.inorgchem.2c03393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Atomic packing and electronic structure are key factors underlying the crystal structures adopted by solid-state compounds. In cases where these factors conflict, structural complexity often arises. Such is born in the series of REAl3 (RE = Sc, Y, lanthanides), which adopt structures with varied stacking patterns of face-centered cubic close packed (FCC, AuCu3 type) and hexagonal close packed (HCP, Ni3Sn type) layers. The percentage of the hexagonal stacking in the structures is correlated with the size of the rare earth atom, but the mechanism by which changes in atomic size drive these large-scale shifts is unclear. In this Article, we reveal this mechanism through DFT-Chemical Pressure (CP) and reversed approximation Molecular Orbital (raMO) analyses. CP analysis illustrates that the Ni3Sn structure type is preferable from the viewpoint of atomic packing as it offers relief to packing issues in the AuCu3 type by consolidating Al octahedra into columns, which shortens Al-Al contacts while simultaneously expanding the RE atom's coordination environment. On the other hand, the AuCu3 type offers more electronic stability with an 18-n closed-shell configuration that is not available in the Ni3Sn type (due to electron transfer from the RE dz2 atomic orbitals into Al-based states). Based on these results, we then turn to a schematic analysis of how the energetic contributions from atomic packing and the electronic structure vary as a function of the ratio of FCC and HCP stacking configurations within the structure and the RE atomic radius. The minima on the atomic packing and electronic surfaces are non-overlapping, creating frustration. However, when their contributions are added, new minima can emerge from their combination for specific RE radii representing intergrowth structures in the REAl3 series. Based on this picture, we propose the concept of emergent transitions, within the framework of the Frustrated and Allowed Structural Transitions principle, for tracing the connection between competing energetic factors and complexity in intermetallic structures.
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Affiliation(s)
- Amber Lim
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin53706, United States
| | - Katerina P Hilleke
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin53706, United States
| | - Daniel C Fredrickson
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin53706, United States
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3
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Freccero R, Pereira LCJ, Solokha P, De Negri S. Flux Growth, Crystal Structure, and Chemical Bonding of Yb 2PdGe 3, an AlB 2 Superstructure within the Rare-Earth Series. Inorg Chem 2023; 62:1988-1999. [PMID: 36662518 PMCID: PMC9906778 DOI: 10.1021/acs.inorgchem.2c03303] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The complete structure revision of the RE2PdGe3 (RE = rare-earth metal) series revealed that Yb2PdGe3 is the only AlB2 ordered superstructure. Good-quality single crystals of this compound were successfully grown from molten indium flux, enabling accurate single-crystal investigations. Yb2PdGe3 crystallizes with the Ce2CoSi3-type structure in the hexagonal space group P6/mmm (no. 191) with lattice parameters a = 8.468(1) Å and c = 4.0747(7) Å. This structure is a four-order derivative of AlB2, composed of planar ∞2[PdGe3] honeycomb layers spaced by Yb species, located at the center of Ge6 and Ge4Pd2 hexagons. A superconducting transition is observed below the critical temperature of 4 K. A divalent state of Yb is deduced from magnetic susceptibility measurements below room temperature, which indicate an almost nonmagnetic behavior. A charge transfer from Yb to Pd and Ge was evidenced by the Quantum Theory of Atoms in Molecules (QTAIM) effective charges; polar four-atomic Ge-Pd/Yb and two-atomic Pd-Yb bonds were observed from the ELI-D (electron localizability indicator), partial ELI-D, and ELI-D/QTAIM intersections. The bonding interactions between Ge atoms within regular Ge6 hexagons are found to be intermediate between single bonds, as in elemental Ge, and higher-order bonds in the hypothetic Ge6H6 and Ge66- aromatic molecules.
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Affiliation(s)
- Riccardo Freccero
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, I-16146Genova, Italy,riccardo.freccero@.unige.it
| | - Laura C. J. Pereira
- Centro
de Ciências e Tecnologias Nucleares, Department of Engenharia
e Ciências Nucleares, Instituto Superior Técnico, Universidade Lisboa, Estrada N acional 10, 2695-066Bobadela, Portugal
| | - Pavlo Solokha
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, I-16146Genova, Italy
| | - Serena De Negri
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, Via Dodecaneso 31, I-16146Genova, Italy
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4
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Ormeci A, Gaudry E, Armbrüster M, Grin Y. Chemical Bonding in the Catalytic Platform Material Ga 1-x Sn x Pd 2. Chemistry 2022; 11:e202200185. [PMID: 36514930 PMCID: PMC9748630 DOI: 10.1002/open.202200185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/09/2022] [Indexed: 12/15/2022]
Abstract
The underlying reasons for the catalytic activity of Ga1-x Snx Pd2 (0 ≤ x ≤ 1) in the semi-hydrogenation of acetylene are analyzed considering electronic structure and chemical bonding. Analysis of the chemical bonding shows pronounced charge transfer from the p elements to palladium and an unusual appearance of the Pd core basins at the surface of the QTAIM (quantum theory of atoms in molecules) atoms. The charge transfer supports the formation of the negatively charged palladium catalytic centers. Gallium-only-coordinated palladium atoms reveal a smaller effective charge in comparison with palladium species having tin in their coordination sphere. Within the empirical tight-binding approach, different influence of the E-Pd distances on the calculation matrix for the energy eigenvalues and the electronic density of states (DOS) leads to an S-like shape of the plot of the energy position of the 4d band center of gravity versus substitution level x. The latter correlates strongly with the catalytic activity and with the varying charge transfer to palladium. The optimal value of negative palladium charge and the closest position of Pd d-states gravity center towards the Fermi level correlates well with the catalytically most active composition x. Combination of all features of the chemical bonding and electronic structure allows more insight into the intrinsic reasons for the catalytic activity variation in the platform material Ga1-x Snx Pd2 (0 ≤ x ≤ 1).
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Affiliation(s)
- Alim Ormeci
- Max-Planck-Institut für Chemische Physik fester StoffeNöthnitzer Str. 4001187DresdenGermany
| | - Emilie Gaudry
- Institut Jean LamourUniversité de Lorraine2 al. André Guinier54011NancyFrance
| | - Marc Armbrüster
- Faculty of Natural SciencesInstitute of ChemistryMaterials for Innovative Energy ConceptsChemnitz University of Technology09107ChemnitzGermany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester StoffeNöthnitzer Str. 4001187DresdenGermany
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5
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Freccero R, De Negri S, Rogl G, Binder G, Michor H, Rogl PF, Saccone A, Solokha P. La 2Pd 3Ge 5 and Nd 2Pd 3Ge 5 Compounds: Chemical Bonding and Physical Properties. Inorg Chem 2021; 60:3345-3354. [PMID: 33570929 PMCID: PMC8023660 DOI: 10.1021/acs.inorgchem.0c03744] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The two La2Pd3Ge5 and Nd2Pd3Ge5 compounds, crystallizing in the oI40-U2Co3Ge5 crystal structure,
were targeted for analysis of their chemical bonding and physical
properties. The compounds of interest were obtained by arc melting
and characterized by differential thermal analysis, scanning electron
microscopy, and X-ray diffraction both on powder and on a single crystal
(for the La analogue), to ensure the high quality of the samples and
accurate crystallographic data. Chemical bonding was studied by analyzing
the electronic structure and effective QTAIM charges of La2Pd3Ge5. A significant charge transfer mainly
occurs from La to Pd so that Ge species assume tiny negative charges.
This result, together with the -(I)COHP analysis, suggests that, in
addition to the expected homopolar Ge bonds within zigzag chains,
heteropolar interactions between Ge and the surrounding La and Pd
occur with multicenter character. Covalent La–Pd interactions
increase the complexity of chemical bonding, which could not be adequately
described by the simplified, formally obeyed, Zintl–Klemm scheme.
Electric resistivity, specific heat, magnetization, and magnetic susceptibility
as a function of temperature indicate for both compounds a metallic-like
behavior. For Nd2Pd3Ge5, two low-temperature
phase transitions are detected, leading to an antiferromagnetic ground
state. The chemical bonding and physical properties
of the two
isotypic R2Pd3Ge5 (R = La and Nd) intermetallics are presented. La2Pd3Ge5 shows polar Ge−Pd/La multicenter interactions
in addition to covalent Ge−Ge bonds. The bonding scenario is
further complicated by the fact that Pd and La are also covalently
interacting. For Nd2Pd3Ge5, an antiferromagnetic
ground state is established after a long-range magnetic ordering (at
∼7.5 K) followed by a spin-reorientation transition (at ∼6.2
K).
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Affiliation(s)
- Riccardo Freccero
- Università degli Studi di Genova, Dipartimento di Chimica e Chimica Industriale, Via Dodecaneso 31, I-16146 Genova, Italy
| | - Serena De Negri
- Università degli Studi di Genova, Dipartimento di Chimica e Chimica Industriale, Via Dodecaneso 31, I-16146 Genova, Italy
| | - Gerda Rogl
- Institute of Materials Chemistry, University of Vienna, Währingerstraße 42, A-1090 Vienna, Austria
| | - Georg Binder
- Institute of Solid State Physics, TU Wien, Wiedner Hauptstraße, 8-10, A-1040 Wien, Austria
| | - Herwig Michor
- Institute of Solid State Physics, TU Wien, Wiedner Hauptstraße, 8-10, A-1040 Wien, Austria
| | - Peter F Rogl
- Institute of Materials Chemistry, University of Vienna, Währingerstraße 42, A-1090 Vienna, Austria
| | - Adriana Saccone
- Università degli Studi di Genova, Dipartimento di Chimica e Chimica Industriale, Via Dodecaneso 31, I-16146 Genova, Italy
| | - Pavlo Solokha
- Università degli Studi di Genova, Dipartimento di Chimica e Chimica Industriale, Via Dodecaneso 31, I-16146 Genova, Italy
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Rohdenburg M, Yang Z, Su P, Bernhardt E, Yuan Q, Apra E, Grabowsky S, Laskin J, Jenne C, Wang XB, Warneke J. Properties of gaseous closo-[B 6X 6] 2- dianions (X = Cl, Br, I). Phys Chem Chem Phys 2020; 22:17713-17724. [PMID: 32728676 DOI: 10.1039/d0cp02581j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Electronic structure, collision-induced dissociation (CID) and bond properties of closo-[B6X6]2- (X = Cl-I) are investigated in direct comparison with their closo-[B12X12]2- analogues. Photoelectron spectroscopy (PES) and theoretical investigations reveal that [B6X6]2- dianions are electronically significantly less stable than the corresponding [B12X12]2- species. Although [B6Cl6]2- is slightly electronically unstable, [B6Br6]2- and [B6I6]2- are intrinsically stable dianions. Consistent with the trend in the electron detachment energy, loss of an electron (e- loss) is observed in CID of [B6X6]2- (X = Cl, Br) but not for [B6I6]2-. Halogenide loss (X- loss) is common for [B6X6]2- (X = Br, I) and [B12X12]2- (X = Cl, Br, I). Meanwhile, X˙ loss is only observed for [B12X12]2- (X = Br, I) species. The calculated reaction enthalpies of the three competing dissociation pathways (e-, X- and X˙ loss) indicated a strong influence of kinetic factors on the observed fragmentation patterns. The repulsive Coulomb barrier (RCB) determines the transition state for the e- and X- losses. A significantly lower RCB for X- loss than for e- loss was found in both experimental and theoretical investigations and can be rationalized by the recently introduced concept of electrophilic anions. The positive reaction enthalpies for X- losses are significantly lower for [B6X6]2- than for [B12X12]2-, while enthalpies for X˙ losses are higher. These observations are consistent with a difference in bond character of the B-X bonds in [B6X6]2- and [B12X12]2-. A complementary bonding analysis using QTAIM, NPA and ELI-D based methods suggests that B-X bonds in [B12X12]2- have a stronger covalent character than in [B6X6]2-, in which X has a stronger halide character.
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Affiliation(s)
- Markus Rohdenburg
- Institut für Angewandte und Physikalische Chemie, Universität Bremen, Fachbereich 2-Biologie/Chemie, 28359 Bremen, Germany
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7
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Baitinger M, Böhme B, Wagner FR, Schwarz U. Zintl Defects in Intermetallic Clathrates. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000107] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Baitinger
- Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Bodo Böhme
- Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Frank R. Wagner
- Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Ulrich Schwarz
- Max‐Planck‐Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
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Ovchinnikov A, Smetana V, Mudring AV. Metallic alloys at the edge of complexity: structural aspects, chemical bonding and physical properties. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:243002. [PMID: 31935688 DOI: 10.1088/1361-648x/ab6b87] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Complex metallic alloys belong to the vast family of intermetallic compounds and are hallmarked by extremely large unit cells and, in many cases, extensive crystallographic disorder. Early studies of complex intermetallics were focusing on the elucidation of their crystal structures and classification of the underlying building principles. More recently, ab initio computational analysis and detailed examination of the physical properties have become feasible and opened new perspectives for these materials. The present review paper provides a summary of the literature data on the reported compositions with exceptional structural complexity and their properties, and highlights the factors leading to the emergence of their crystal structures and the methods of characterization and systematization of these compounds.
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Affiliation(s)
- Alexander Ovchinnikov
- Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius väg 16 C, 10691 Stockholm, Sweden
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Grabowsky S, Genoni A, Thomas SP, Jayatilaka D. The Advent of Quantum Crystallography: Form and Structure Factors from Quantum Mechanics for Advanced Structure Refinement and Wavefunction Fitting. 21ST CENTURY CHALLENGES IN CHEMICAL CRYSTALLOGRAPHY II 2020. [DOI: 10.1007/430_2020_62] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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10
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Levina EO, Khrenova MG, Astakhov AA, Tsirelson VG. Revealing electronic features governing hydrolysis of cephalosporins in the active site of the L1 metallo-β-lactamase. RSC Adv 2020; 10:8664-8676. [PMID: 35496524 PMCID: PMC9050041 DOI: 10.1039/c9ra10649a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/14/2020] [Indexed: 11/21/2022] Open
Abstract
The QM/MM simulations followed by electron density feature analysis are carried out to deepen the understanding of the reaction mechanism of cephalosporin hydrolysis in the active site of the L1 metallo-β-lactamase. The differences in reactivity of ten similar cephalosporin compounds are explained by using an extended set of bonding descriptors. The limiting step of the reaction is characterized by the proton transfer to the nitrogen atom of the cephalosporin thiazine ring accompanied with formation of the C4
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C3 double bond in its N–C4–C3 fragment. The temporary N⋯H–Ow hydrogen bond, which is formed in the transition state of the limiting step of the reaction was recognized as a key atomic interaction governing the reactivity of various cephalosporins. Non-local real-space bonding descriptors show that different extent of localization of electron lone pair at N atom in the transition state affect the reactivity of compounds: smaller electron localization is typical for the less reactive species. In particular, the Fermi hole analysis shows how exchange electron correlation in the N⋯H–Ow fragment control electron lone pair localization. Delocalization tensor, linear response kernel and source function indicate that features of electron delocalization in the N–C4–C3 fragment of cephalosporins in the transition state complexes determine the differences in C4–C3 bond for substrates with high and low rate constants. The C4–C3 bond of the N–C4–C3 fragment at the transition state is similar to that of the preceding intermediate for the less reactive species and resembles the features of the enzyme–product complex for more reactive compounds. The power and limitations of the descriptors applied for solving the problem are discussed and the generality of approach is stressed. Combination of QM/MM and modern bonding descriptors explains different reactivity of cephalosporins in the active site of the L1 metallo-β-lactamase.![]()
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Affiliation(s)
- Elena O. Levina
- Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences
- Moscow
- Russia
- Moscow Institute of Physics and Technology
- Dolgoprudny
| | - Maria G. Khrenova
- Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences
- Moscow
- Russia
- Lomonosov Moscow State University
- Moscow
| | - Andrey A. Astakhov
- Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences
- Moscow
- Russia
- Joint Institute for Nuclear Research
- Dubna
| | - Vladimir G. Tsirelson
- Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences
- Moscow
- Russia
- Mendeleev University of Chemical Technology of Russia
- Moscow
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11
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Inhomogeneity and anisotropy of chemical bonding and thermoelectric properties of materials. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.12.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Freccero R, Solokha P, De Negri S, Saccone A, Grin Y, Wagner FR. Polar‐Covalent Bonding Beyond the Zintl Picture in Intermetallic Rare‐Earth Germanides. Chemistry 2019; 25:6600-6612. [DOI: 10.1002/chem.201900510] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Riccardo Freccero
- Dipartimento di Chimica e Chimica IndustrialeUniversità degli Studi di Genova Via Dodecaneso 31 16146 Genova Italy
- Max-Planck-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Pavlo Solokha
- Dipartimento di Chimica e Chimica IndustrialeUniversità degli Studi di Genova Via Dodecaneso 31 16146 Genova Italy
| | - Serena De Negri
- Dipartimento di Chimica e Chimica IndustrialeUniversità degli Studi di Genova Via Dodecaneso 31 16146 Genova Italy
| | - Adriana Saccone
- Dipartimento di Chimica e Chimica IndustrialeUniversità degli Studi di Genova Via Dodecaneso 31 16146 Genova Italy
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
| | - Frank R. Wagner
- Max-Planck-Institut für Chemische Physik fester Stoffe Nöthnitzer Straße 40 01187 Dresden Germany
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Wagner FR, Cardoso-Gil R, Boucher B, Wagner-Reetz M, Sichelschmidt J, Gille P, Baenitz M, Grin Y. On Fe–Fe Dumbbells in the Ideal and Real Structures of FeGa3. Inorg Chem 2018; 57:12908-12919. [DOI: 10.1021/acs.inorgchem.8b02094] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Frank R. Wagner
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Raul Cardoso-Gil
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Benoît Boucher
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Maik Wagner-Reetz
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Jörg Sichelschmidt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Peter Gille
- Ludwig-Maximilians-Universität München, Theresienstraße 41, 80333 München, Germany
| | - Michael Baenitz
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
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15
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Lin Q, Aguirre K, Saunders SM, Hackett TA, Liu Y, Taufour V, Paudyal D, Budko S, Canfield PC, Miller GJ. Polar Intermetallics Pr5Co2Ge3and Pr7Co2Ge4with Planar Hydrocarbon-Like Metal Clusters. Chemistry 2017. [DOI: 10.1002/chem.201702798] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qisheng Lin
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
- Department of Chemistry; Iowa State University; 2415 Osborn Drive, 1605 Gilman Hall Ames IA 50011-1021 USA
| | - Kaiser Aguirre
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
| | - Scott M. Saunders
- Department of Physics and Astronomy; Iowa State University; 2334 Pammel Drive Ames IA 50011-3160 USA
| | - Timothy A. Hackett
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
| | - Yong Liu
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
| | - Valentin Taufour
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
- Department of Physics and Astronomy; Iowa State University; 2334 Pammel Drive Ames IA 50011-3160 USA
- Department of Physics; University of California, Davis; One Shields Avenue Davis CA 95616 USA
| | - Durga Paudyal
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
| | - Sergey Budko
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
| | - Paul C. Canfield
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
- Department of Physics and Astronomy; Iowa State University; 2334 Pammel Drive Ames IA 50011-3160 USA
| | - Gordon J. Miller
- Division of Materials Science & Engineering; Ames Laboratory; U.S. Department of Energy; 2416 Pammel Drive Ames IA 50011-2416 USA
- Department of Chemistry; Iowa State University; 2415 Osborn Drive, 1605 Gilman Hall Ames IA 50011-1021 USA
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16
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Rohdenburg M, Mayer M, Grellmann M, Jenne C, Borrmann T, Kleemiss F, Azov VA, Asmis KR, Grabowsky S, Warneke J. Superelectrophilic Behavior of an Anion Demonstrated by the Spontaneous Binding of Noble Gases to [B 12 Cl 11 ]<sup/>. Angew Chem Int Ed Engl 2017; 56:7980-7985. [PMID: 28560843 DOI: 10.1002/anie.201702237] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Indexed: 11/06/2022]
Abstract
It is common and chemically intuitive to assign cations electrophilic and anions nucleophilic reactivity, respectively. Herein, we demonstrate a striking violation of this concept: The anion [B12 Cl11 ]- spontaneously binds to the noble gases (Ngs) xenon and krypton at room temperature in a reaction that is typical of "superelectrophilic" dications. [B12 Cl11 Ng]- adducts, with Ng binding energies of 80 to 100 kJ mol-1 , contain B-Ng bonds with a substantial degree of covalent interaction. The electrophilic nature of the [B12 Cl11 ]- anion is confirmed spectroscopically by the observation of a blue shift of the CO stretching mode in the IR spectrum of [B12 Cl11 CO]- and theoretically by investigation of its electronic structure. The orientation of the electric field at the reactive site of [B12 Cl11 ]- results in an energy barrier for the approach of polar molecules and facilitates the formation of Ng adducts that are not detected with reactive cations such as [C6 H5 ]+ . This introduces the new chemical concept of "dipole-discriminating electrophilic anions."
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Affiliation(s)
- Markus Rohdenburg
- Universität Bremen, Institut für Angewandte und Physikalische Chemie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Martin Mayer
- Universität Leipzig, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Linnéstr. 2, 04103, Leipzig, Germany
| | - Max Grellmann
- Universität Leipzig, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Linnéstr. 2, 04103, Leipzig, Germany
| | - Carsten Jenne
- Bergische Universität Wuppertal, Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften, Gaußstr. 20, 42119, Wuppertal, Germany
| | - Tobias Borrmann
- Universität Bremen, Institut für Angewandte und Physikalische Chemie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Florian Kleemiss
- Universität Bremen, Institut für Anorganische Chemie und Kristallographie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Vladimir A Azov
- Universität Bremen, Institut für Angewandte und Physikalische Chemie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany.,N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia
| | - Knut R Asmis
- Universität Leipzig, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Linnéstr. 2, 04103, Leipzig, Germany
| | - Simon Grabowsky
- Universität Bremen, Institut für Anorganische Chemie und Kristallographie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Jonas Warneke
- Pacific Northwest National Laboratory, Physical Science Division, Richland, WA, 99352, USA
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17
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Rohdenburg M, Mayer M, Grellmann M, Jenne C, Borrmann T, Kleemiss F, Azov VA, Asmis KR, Grabowsky S, Warneke J. Superelektrophiles Verhalten eines Anions demonstriert durch spontane Bindung von Edelgasen an [B12
Cl11
]−. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702237] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Markus Rohdenburg
- Universität Bremen; Institut für Angewandte und Physikalische Chemie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Martin Mayer
- Universität Leipzig; Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Linnéstr. 2 04103 Leipzig Deutschland
| | - Max Grellmann
- Universität Leipzig; Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Linnéstr. 2 04103 Leipzig Deutschland
| | - Carsten Jenne
- Bergische Universität Wuppertal; Anorganische Chemie; Fakultät für Mathematik und Naturwissenschaften; Gaußstr. 20 42119 Wuppertal Deutschland
| | - Tobias Borrmann
- Universität Bremen; Institut für Angewandte und Physikalische Chemie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Florian Kleemiss
- Universität Bremen; Institut für Anorganische Chemie und Kristallographie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Vladimir A. Azov
- Universität Bremen; Institut für Angewandte und Physikalische Chemie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
- N. D. Zelinsky Institut für Organische Chemie; Russische Akademie der Wissenschaften; Leninsky prospect 47 Moskau 119991 Russland
| | - Knut R. Asmis
- Universität Leipzig; Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Linnéstr. 2 04103 Leipzig Deutschland
| | - Simon Grabowsky
- Universität Bremen; Institut für Anorganische Chemie und Kristallographie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Jonas Warneke
- Pacific Northwest National Laboratory; Physical Science Division; Richland WA 99352 USA
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18
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Barquera-Lozada JE. Torquoselectivity in Cyclobutene Ring Openings and the Interatomic Interactions That Control Them. J Phys Chem A 2016; 120:8450-8460. [PMID: 27723338 DOI: 10.1021/acs.jpca.6b08771] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Torquoselectivity has explained diasteromeric preferences of a number electrocyclic ring openings. The quantum theory of atoms in molecules (QTAIM), the electron localizability indicator (ELI-D), and the interacting quantum atoms (IQA) energy partition method are used to evaluate qualitatively and quantitatively the atomic interactions behind the torquoselectivity of a series of 3-substituted cyclobutenes. ELI-D topology and IQA energies show that the interaction between the distal terminus carbon atom of cyclobutene (C4) with the substituent at C3 (R5) in the transition state governs torquoselectivities. In the case of 3-borylcyclobutene, this interaction is so strong that a protocovalent bond is actually formed between B5 and C4. The evaluation of the interatomic energies allowed us to identify an additional interaction that contribute to a minor extent to the stabilization of the TS. Despite the fact that C4,R5 interaction is the main cause of the torquoselectivity, a bonding path (BP) between these two atoms was not observed. However, the lack of a BP between C4 and R5 does not mean that the topology of the electron density was not affected by the interaction of these two atoms. Surprisingly, we found a strong correlation between the density at the bond critical point (BCP) and the BP shape of C3-C4 breaking bond with the observed activation energies and torquoselectivities.
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Affiliation(s)
- José Enrique Barquera-Lozada
- Instituto de Química, Universidad Nacional Autónoma de México , Circuito exterior, Ciudad Universitaria Coyoacán, México, D.F., México 04510
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19
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Topological analysis of metal–ligand and hydrogen bonds in transition metal hybrid structures – A computational study. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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20
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Wagner FR, Bende D, Grin Y. Heteropolar bonding and a position-space representation of the 8 − N rule. Dalton Trans 2016; 45:3236-43. [DOI: 10.1039/c5dt04140f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 8 − N rule in solid-state chemistry is represented by two complementary views. This contribution highlights the new quantum-chemical position-space representation of the 8 − N rule which unites the two classical views and shows promising predictive capabilities, in particular for heteropolar bonding situations.
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Affiliation(s)
- F. R. Wagner
- Max-Planck-Institut für Chemische Physik fester Stoffe
- 01187 Dresden
- Germany
| | - D. Bende
- Max-Planck-Institut für Chemische Physik fester Stoffe
- 01187 Dresden
- Germany
| | - Yu. Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe
- 01187 Dresden
- Germany
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21
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Bende D, Wagner FR, Grin Y. 8 – N Rule and Chemical Bonding in Main-Group MgAgAs-Type Compounds. Inorg Chem 2015; 54:3970-8. [DOI: 10.1021/acs.inorgchem.5b00135] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David Bende
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Straße 40, 01187 Dresden, Germany
| | - Frank R. Wagner
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Straße 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer
Straße 40, 01187 Dresden, Germany
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22
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23
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Stolze K, Isaeva A, Schwarz U, Doert T. UPTe, ThPTe and U
2
PTe
2
O: Actinide Pnictide Chalcogenides with Diphosphide Anions. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201402951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karoline Stolze
- Department of Chemistry and Food Chemistry, Technische Universität Dresden, Helmholtzstr. 10, 01062 Dresden, Germany, http://www.chm.tu‐dresden.de/ac2/thdoert/thdoert
| | - Anna Isaeva
- Department of Chemistry and Food Chemistry, Technische Universität Dresden, Helmholtzstr. 10, 01062 Dresden, Germany, http://www.chm.tu‐dresden.de/ac2/thdoert/thdoert
| | - Ulrich Schwarz
- Max Planck Institute für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - Thomas Doert
- Department of Chemistry and Food Chemistry, Technische Universität Dresden, Helmholtzstr. 10, 01062 Dresden, Germany, http://www.chm.tu‐dresden.de/ac2/thdoert/thdoert
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24
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Thomas SP, Jayatilaka D, Guru Row TN. S⋯O chalcogen bonding in sulfa drugs: insights from multipole charge density and X-ray wavefunction of acetazolamide. Phys Chem Chem Phys 2015; 17:25411-20. [DOI: 10.1039/c5cp04412j] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Experimental charge density analysis combined with the quantum crystallographic technique of X-ray wavefunction refinement (XWR) provides quantitative insights into the intra- and intermolecular interactions formed by acetazolamide, a diuretic drug.
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Affiliation(s)
- Sajesh P. Thomas
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
- Australia
- Solid state and Structural Chemistry Unit
| | - Dylan Jayatilaka
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
- Australia
| | - T. N. Guru Row
- Solid state and Structural Chemistry Unit
- Indian Institute of Science
- Bangalore
- India
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25
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Groh MF, Knies M, Isaeva A, Ruck M. Bi2S3Bipyramids in Layered SulfidesM2Bi2S3(AlCl4)2(M= Ag, Cu). Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400522] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Akselrud L, Wosylus A, Castillo R, Aydemir U, Prots Y, Schnelle W, Grin Y, Schwarz U. BaGe6 and BaGe6-x: Incommensurately Ordered Vacancies as Electron Traps. Inorg Chem 2014; 53:12699-705. [DOI: 10.1021/ic5021065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lev Akselrud
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Aron Wosylus
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Rodrigo Castillo
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Umut Aydemir
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yurii Prots
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - Ulrich Schwarz
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
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27
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Mallow O, Bolsinger J, Finke P, Hesse M, Chen YS, Duthie A, Grabowsky S, Luger P, Mebs S, Beckmann J. Oxygen Transfer from an Intramolecularly Coordinated Diaryltellurium Oxide to Acetonitrile. Formation and Combined AIM and ELI-D Analysis of a Novel Diaryltellurium Acetimidate. J Am Chem Soc 2014; 136:10870-3. [DOI: 10.1021/ja505648x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ole Mallow
- Institut
für Anorganische Chemie, Universität Bremen, Leobener Str., 28359 Bremen, Germany
| | - Jens Bolsinger
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Pamela Finke
- Institut
für Anorganische Chemie, Universität Bremen, Leobener Str., 28359 Bremen, Germany
| | - Malte Hesse
- Institut
für Anorganische Chemie, Universität Bremen, Leobener Str., 28359 Bremen, Germany
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Yu-Sheng Chen
- ChemMatCARS,
Center for Advanced Radiation Sources, The University of Chicago, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Andrew Duthie
- School
of Life and Environmental Sciences, Deakin University, Pigdons Road, Waurn Ponds 3217, Australia
| | - Simon Grabowsky
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
- School
of Chemistry and Biochemistry, The University of Western Australia, 35 Stirling Highway, Crawley WA 6009, Australia
| | - Peter Luger
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Stefan Mebs
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
| | - Jens Beckmann
- Institut
für Anorganische Chemie, Universität Bremen, Leobener Str., 28359 Bremen, Germany
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany
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28
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29
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Müller U, Isaeva A, Ruck M. Ionothermal Synthesis, Crystal Structure, and Chemical Bonding of the Niobium(IV) Complex Nb2(Se2)2(AlCl4)4. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400095] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Alarcón Villaseca S, Kandaskalov D, Gaudry É, Armbrüster M. Chemical Bonding in Zinc-based Intermetallic Compounds with the CuTi or the CsCl Type of Structure. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300583] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Gerisch A, Isaeva A, Ruck M. Bi65Cu13Ge41O6Br122, a Low-Valent Compound of High Structural Complexity Featuring the Trigonal Anion [O(GeIIBr2)3]2-with an sp2-Hybridized μ3-Oxide Ion. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300306] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Grabowsky S, Jayatilaka D, Fink RF, Schirmeister T, Engels B. Can Experimental Electron-Density Studies be Used as a Tool to Predict Biologically Relevant Properties of Low-Molecular Weight Enzyme Ligands? Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201200518] [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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33
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Schwarz U, Tencé S, Janson O, Koz C, Krellner C, Burkhardt U, Rosner H, Steglich F, Grin Y. CoBi3: Binäre Cobalt-Bismut-Verbindung und Supraleiter. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302397] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Schwarz U, Tencé S, Janson O, Koz C, Krellner C, Burkhardt U, Rosner H, Steglich F, Grin Y. CoBi3: A Binary Cobalt-Bismuth Compound and Superconductor. Angew Chem Int Ed Engl 2013; 52:9853-7. [DOI: 10.1002/anie.201302397] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Indexed: 11/10/2022]
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35
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Bauer T, Wagner FR, Kempe R. Ternary Rare-Earth Transition-Metal Polyhydride Cluster Compounds. Chemistry 2013; 19:8732-5. [DOI: 10.1002/chem.201301290] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Indexed: 11/10/2022]
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36
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Barquera-Lozada JE, Obenhuber A, Hauf C, Scherer W. On the chemical shifts of agostic protons. J Phys Chem A 2013; 117:4304-15. [PMID: 23600565 DOI: 10.1021/jp4013174] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Agostic hydrogen atoms in planar d(8) transition metal complexes display a remarkable wide range of chemical shifts from +5 to -10 ppm in the proton NMR spectra. It is therefore surprising that a simple recipe can be elaborated to predict the influence of the local electronic structure of the metal atom on the shielding of the coordinating protons: In cases where the agostic hydrogen atom is pointing to a local Lewis acidic center at the metal the (1)H NMR signal is shifted upfield relative to the scenario where the proton is opposing a local charge concentration at the metal. To trace the physical origin of this empirical relationship, a systematic study has been performed to understand how the (i) topology of the electron density and (ii) orientation of the magnetic field vector, B0, control the paratropic or diatropic characteristics of the induced current density at the metal atom and thus the shielding or deshielding of the agostic protons.
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37
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Börrnert C, Grin Y, Wagner FR. Position-Space Bonding Indicators for Hexaborides of Alkali, Alkaline-Earth, and Rare-Earth Metals in Comparison to the Molecular Crystal K2[B6H6]. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201200514] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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38
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Wagner FR, Baranov AI, Grin Y, Kohout M. A Position-Space View on Chemical Bonding in Metal Diborides with AlB2Type of Crystal Structure. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201200523] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Francisco E, Martín Pendás A, García-Revilla M, Álvarez Boto R. A hierarchy of chemical bonding indices in real space from reduced density matrices and cumulants. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2012.09.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Schwarz U, Wosylus A, Rosner H, Schnelle W, Ormeci A, Meier K, Baranov A, Nicklas M, Leipe S, Müller CJ, Grin Y. Dumbbells of Five-Connected Silicon Atoms and Superconductivity in the Binary Silicides MSi3 (M = Ca, Y, Lu). J Am Chem Soc 2012; 134:13558-61. [DOI: 10.1021/ja3055194] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ulrich Schwarz
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Aron Wosylus
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Helge Rosner
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Alim Ormeci
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Katrin Meier
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Alexey Baranov
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Michael Nicklas
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Susann Leipe
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Carola J. Müller
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
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41
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Günther A, Heise M, Wagner FR, Ruck M. An Iridium-Stabilized, Formally Uncharged Te10 Molecule with 3-Center-4-Electron Bonding. Angew Chem Int Ed Engl 2011; 50:9987-90. [DOI: 10.1002/anie.201102321] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 05/27/2011] [Indexed: 11/06/2022]
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42
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Günther A, Heise M, Wagner FR, Ruck M. Ein Iridium-stabilisiertes, formal neutrales Te10-Molekül mit Drei-Zentren-vier-Elektronen-Bindung. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102321] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Grabowsky S, Weber M, Jayatilaka D, Chen YS, Grabowski MT, Brehme R, Hesse M, Schirmeister T, Luger P. Reactivity differences between α,β-unsaturated carbonyls and hydrazones investigated by experimental and theoretical electron density and electron localizability analyses. J Phys Chem A 2011; 115:12715-32. [PMID: 21780784 DOI: 10.1021/jp203677c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
It is still a challenge to predict a compound's reactivity from its ground-state electronic nature although Bader-type topological analyses of the electron density (ED) and electron localizability indicator (ELI) give detailed and useful information on electron concentration and electron-pair localization, respectively. Both ED and ELI can be obtained from theoretical calculations as well as high-resolution X-ray diffraction experiments. Besides ED and ELI descriptors, the delocalization index is used here; it is likewise derived from theoretical calculations as well as from experimental X-ray results, but in the latter case, demonstrated here for the first time. We investigate α,β-unsaturated carbonyl and hydrazone compounds because resonance exhibited by these compounds in the electronic ground-state determines their reactive behavior. The degree of resonance as well as the reactivity contrast are quantified with the electronic descriptors. Moreover, competitive mesomeric substituent effects are studied using the two biologically important compounds acrolein and acrylamide. The reactivity differences predicted from the analyses are in line with the known reactivity of these compounds in organic synthesis. Hence, the capability of the ED and ELI for rationalizing and predicting different and competing substituent effects with respect to reactivity is demonstrated.
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Affiliation(s)
- Simon Grabowsky
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Berlin, Germany
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Grin Y, Nesper R. Periodic Space Partitioners (PSP) and their relations to Crystal Chemistry. ACTA ACUST UNITED AC 2011. [DOI: 10.1524/zkri.2011.1429] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
We are looking back on 30 years development of periodic space partitioners (PSP) and their relations to their periodic relatives, i.e. minimal surfaces (PMS), zero potential surfaces (P0PS), nodal surfaces (PNS), and exponential scale surfaces. Hans-Georg von Schnering and Sten Andersson have pioneered this field especially in terms of applications to crystal chemistry. This review relates the early attempts to approximate periodic minimal surfaces which established a systematic classification of all PSP in terms space group symmetry and consecutive applications in a variety of different fields. A consistent nomenclature is outlined and different methods for deriving PSP are described. Characteristic structure factor sets which solely define PNS by can be used to discriminate structure types of a given symmetry or even to determine complicated crystal structures. The concept of PSP relates space group symmetry, topology, and chemical bonding in an intriguing way and tessellations on PSP which can be generated in a straight forward way allow to predict new framework types. Through transformation of such continuous topological forms a new entry has been found for understanding and interpreting reconstructive phase transitions. Finally we indicate the importance of PSP models for soft matter science.
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Affiliation(s)
| | - Reinhard Nesper
- ETH Zürich, Laboratory of Inorganic Chemistry, Zürich, Schweiz
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Butovskii MV, Tok OL, Bezugly V, Wagner FR, Kempe R. Molekulare Lanthanoid-Übergangsmetall-Cluster mittels C-H-Bindungsaktivierung an polaren Metall-Metall-Bindungen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102363] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Butovskii MV, Tok OL, Bezugly V, Wagner FR, Kempe R. Molecular Lanthanoid-Transition-Metal Cluster through CH Bond Activation by Polar Metal-Metal Bonds. Angew Chem Int Ed Engl 2011; 50:7695-8. [PMID: 21717547 DOI: 10.1002/anie.201102363] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Indexed: 11/05/2022]
Affiliation(s)
- Mikhail V Butovskii
- Lehrstuhl Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany
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Farrugia LJ, Senn HM. Metal-metal and metal-ligand bonding at a QTAIM catastrophe: a combined experimental and theoretical charge density study on the alkylidyne cluster Fe3(μ-H)(μ-COMe)(CO)10. J Phys Chem A 2010; 114:13418-33. [PMID: 21182291 DOI: 10.1021/jp1098624] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The charge density in the tri-iron methoxymethylidyne cluster Fe(3)(μ-H)(μ-COMe)(CO)(10) (1) has been studied experimentally at 100 K and by DFT calculations on the isolated molecule using the Quantum Theory of Atoms in Molecules (QTAIM). The COMe ligand acts as a nearly symmetric bridge toward two of the Fe atoms (Fe-C = 1.8554(4), 1.8608(4) Å) but with a much longer interaction to the third Fe atom, Fe-C = 2.6762(4) Å. Complex 1 provides a classic example where topological QTAIM catastrophes render an exact structure description ambiguous. While all experimental and theoretical studies agree in finding no direct metal-metal interaction for the doubly bridged Fe-Fe vector, the chemical bonding between the Fe(CO)(4) unit and the Fe(2)(μ-H)(μ-COMe)(CO)(6) moiety in terms of conventional QTAIM descriptors is much less clear. Bond paths implying direct Fe-Fe interactions and a weak interaction between the COMe ligand and the Fe(CO)(4) center are observed, depending on the experimental or theoretical density model examined. Theoretical studies using the Electron Localizability Indicator (ELI-D) suggest the metal-metal bonding is more significant, while the delocalization indices imply that both Fe-Fe bonding and Fe···C(alkylidyne) bonding are equally important. The source functions at various interfragment reference points are similar and highly delocalized. The potential-energy surface (PES) for the migration of the alkylidyne group from a μ(2) to a semi-μ(3) coordination mode has been explored by DFT calculations on 1 and the model complexes M(3)(μ-H)(μ-CH)(CO)(10) (M = Fe, 2; Ru, 3; and Os, 4). These calculations confirm a semi-μ(3) bridging mode for the alkylidyne ligand as the minimum-energy geometry for compounds 2-4 and demonstrate that, for 1, both Fe-Fe and Fe···C(alkylidyne) interactions are important in the cluster bonding. The PES between μ(2) and semi-μ(3) alkylidyne coordination for 1 is extremely soft, and the interconversion between several topological isomers is predicted to occur with almost no energy cost. Analysis of the density ρ(r) and the Laplacian of the density ▽(2)ρ(r(b)) in the methoxymethylidyne ligand is consistent with a partial π-bond character of the C-O bond, associated with an sp(2) hybridization for these atoms.
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Affiliation(s)
- Louis J Farrugia
- WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, Scotland
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Scherer W, Wolstenholme DJ, Herz V, Eickerling G, Brück A, Benndorf P, Roesky PW. On the nature of agostic interactions in transition-metal amido complexes. Angew Chem Int Ed Engl 2010; 49:2242-6. [PMID: 20187050 DOI: 10.1002/anie.200905463] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wolfgang Scherer
- Institut für Physik, Lehrstuhl für Chemische Physik und Materialwissenschaften, Universität Augsburg, 86135 Augsburg, Germany.
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Bezugly V, Wielgus P, Kohout M, Wagner FR. Electron localizability indicators ELI-D and ELIA for highly correlated wavefunctions of homonuclear dimers. II. N2, O2, F2, and Ne2. J Comput Chem 2010; 31:2273-85. [PMID: 20340107 DOI: 10.1002/jcc.21519] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Electron localizability indicators based on the electron pair density ELI-D and ELIA Electron localizability indicators ELI-D and ELIA based on the electron pair density are studied for the correlated ground-state wavefunctions of N(2), O(2), F(2), and Ne(2) diatomics. Different basis sets and reference spaces are used for the multireference configuration interaction method following the complete active space calculations to investigate the local effect of electron correlation on the extent of electron localizability in position space determined by the two indicators. The results are complemented by calculations of effective bond order, vibrational frequency, and Laplacian of the electron density at the bond midpoint. It turns out that for O(2) and F(2), the reliable topology of ELI-D is obtained only at the correlated level of theory.
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Affiliation(s)
- Viktor Bezugly
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden 01187, Germany.
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50
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Scherer W, Wolstenholme D, Herz V, Eickerling G, Brück A, Benndorf P, Roesky P. Über die Natur agostischer Wechselwirkungen in Übergangsmetall-Amido-Komplexen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200905463] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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