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Yan X, Jiang H, Liu Z, Wang D. Computational Comparative Study of the Binding of Americium with N-Donor Ligands. Inorg Chem 2024; 63:8206-8214. [PMID: 38647176 DOI: 10.1021/acs.inorgchem.4c00448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
The accessibility of multiple valence states of americium (Am) inspired redox-based protocols aimed at efficient separation of trivalent Am (Am3+) from trivalent lanthanides (Ln3+) alternative to the traditional liquid-liquid extraction. This requires an extensive understanding of the coordination chemistry of Am in its various accessible valence states in the aqueous phase. In this work, by means of DFT calculations, the coordination of AmIII-VI with five typical N-donor ligands, i.e., terpyridine (tpy), bispyrazinylpyridine (dpp), bistriazinylpyridine (BTP), bistriazinyl bipyridine (BTBP), and bistrazinyl phenanthroline (BTPhen), was studied in terms of energy and topological analysis. The results show that the exchange of aqua ligands of hydrated ions by N-donor ligands is an entropy-driven process and enthalpically unfavorable. Topological analysis suggests a distinct mechanism of BTP to modulate the redox potential of Am(III) in that BTP can assist the relay of the leaving electron of AmIII, while the other N-donor ligands can detain the oxidation of Am by offering their electron instead. This comparative study enriches our understanding of the coordination chemistry of high-valent Am with N-donor ligands and recommends the ligand design toward the modulation of redox potentials of hydrated Am(III) ions.
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Affiliation(s)
- Xin Yan
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Hui Jiang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ziyi Liu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Dongqi Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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2
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Leiszner SS, Chakarawet K, Long JR, Nishibori E, Sugimoto K, Platts JA, Overgaard J. Electron Density Analysis of Metal-Metal Bonding in a Ni 4 Cluster Featuring Ferromagnetic Exchange. Inorg Chem 2023; 62:192-200. [PMID: 36547395 DOI: 10.1021/acs.inorgchem.2c03170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We present a combined experimental and theoretical study of the nature of the proposed metal-metal bonding in the tetranuclear cluster Ni4(NPtBu3)4, which features four nickel(I) centers engaged in strong ferromagnetic coupling. High-resolution single-crystal synchrotron X-ray diffraction data collected at 25 K provide an accurate geometrical structure and a multipole model electron density description. Topological analysis of the electron density in the Ni4N4 core using the quantum theory of atoms in molecules clearly identifies the bonding as an eight-membered ring of type [Ni-N-]4 without direct Ni-Ni bonding, and this result is generally corroborated by an analysis of the energy density distribution. In contrast, the calculated bond delocalization index of ∼0.6 between neighboring Ni atoms is larger than what has been found for other bridged metal-metal bonds and implies direct Ni-Ni bonding. Similar support for the presence of direct Ni-Ni bonding is found in the interacting quantum atom approach, an energy decomposition scheme, which suggests the presence of stabilizing Ni-Ni bonding interactions with an exchange-correlation energy contribution approximately 50% of that of the Ni-N interactions. Altogether, while the direct interactions between neighboring Ni centers are too weak and sterically constrained to bear the signature of a topological bond critical point, other continuous measures clearly indicate significant Ni-Ni bonding. These metal-metal bonding interactions likely mediate direct ferromagnetic exchange, giving rise to the high-spin ground state of the molecule.
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Affiliation(s)
| | - Khetpakorn Chakarawet
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Jeffrey R Long
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Eiji Nishibori
- Department of Physics, Faculty of Pure and Applied Sciences, Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba 3058571, Japan
| | - Kunihisa Sugimoto
- Diffraction & Scattering Division Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - James A Platts
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, U.K
| | - Jacob Overgaard
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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3
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Jiang H, Liu Z, He L, Chai Z, Wang D. The Speciation of Americium Cations in Neat Water Implicated from DFT Studies. Inorg Chem 2022; 61:13858-13867. [PMID: 35984920 DOI: 10.1021/acs.inorgchem.2c01805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The recent observed manipulatable redox potential of trivalent americium ion in the aqueous phase by modifying an electrode offers an alternative to accomplish the separation. In order to understand extensively the speciation of Am, which is the prerequisite to understanding the mechanism of the oxidation of Am, we conducted a density functional study to identify the potential species of Am in its tri-, tetra-, and pentavalent states in aqueous phase. Based on the speciation analysis, the calculations implicate a stepwise mechanism for the oxidation of hydrated Am(III), which predominantly exists in its hydrated monatomic cationic form (Am3+(aq)). The two sequential one-electron oxidation processes first produce AmO2+(aq), which may establish an equilibrium with Am4+(aq), and the AmO2+(aq) may then evolve to the dioxo americyl(V) ion. These results suggest the copresence of Am4+(aq) and AmO2+(aq), which builds a bridge for the conversion of americium ion from a monatomic ion to dioxo americyl(V).
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Affiliation(s)
- Hui Jiang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ziyi Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Lei He
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhifang Chai
- State Key Laboratory of Radiation Medicine and Protection, and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215123, China.,Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Dongqi Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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4
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Pinto CB, Rodrigues BL, Dos Santos LHR. Estimating electron density at the bond critical point through atomic Hirshfeld surfaces. J Appl Crystallogr 2021. [DOI: 10.1107/s1600576721009213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Interatomic surfaces often carry information related to the electron distribution in a molecule or crystal, not only being a visual aid but also enabling quantitative analyses. Under certain conditions, atomic Hirshfeld surfaces present a high resemblance to the interatomic surfaces obtained through the quantum theory of atoms in molecules (QTAIM), with the advantage of being easily calculated, even for crystal structures determined at low resolutions (i.e. when a charge-density refinement is not performed). Here an empirical relation between the curvedness property of the Hirshfeld surfaces and the electron density at the bond critical point for certain types of covalent and coordination interactions involving carbon atoms has been obtained. The exponential function was tested to estimate the electron density in different crystalline systems, and the highest deviation from reference values obtained through QTAIM was just 16%. Additionally, fine details of this fit may be salient to the difference in electronegativity of the atoms involved in the bond.
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Attia AS, Alfallous KA, El-Shahat M. A novel quinoxalinedione-bicapped tri-ruthenium carbonyl cluster [Ru3(μ-H)2(CO)6(μ3-HDCQX)2]: synthesis, characterization, anticancer activity and theoretical investigation of Ru–Ru and Ru–Ligand bonding interactions. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Kumar N, Saha S, Sastry GN. Towards developing a criterion to characterize non-covalent bonds: a quantum mechanical study. Phys Chem Chem Phys 2021; 23:8478-8488. [DOI: 10.1039/d0cp05689h] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chemical bonds are central to chemistry, biology, and allied fields, but still, the criterion to characterize an interaction as a non-covalent bond has not been studied rigorously.
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Affiliation(s)
- Nandan Kumar
- Centre for Molecular Modeling
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Soumen Saha
- Centre for Molecular Modeling
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Nagoya University
| | - G. Narahari Sastry
- Centre for Molecular Modeling
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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7
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Sutradhar D, Bhattarai S, Parveen S, Chandra AK. Comparison between Chlorine-Shared and π-Halogen Bonds Involving Substituted Phosphabenzene and ClF Molecules. ACS OMEGA 2020; 5:24095-24105. [PMID: 32984731 PMCID: PMC7513335 DOI: 10.1021/acsomega.0c03567] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
Ab initio MP2/aug-cc-pVTZ calculations have been carried out in order to study the nature of P···Cl halogen bonding interaction between a phosphorus atom in an aromatic ring in para-substituted phosphabenzene (PPBZ) and ClF molecule. The interaction of PPBZ with ClF results in two different types of complexes: (i) complex formation through the chlorine-shared halogen bond (T1-X-PPBZ·ClF) and (ii) complex formation via halogen-π interaction (T2-X-PPBZ·ClF). T1-X-PPBZ·ClF complexes are found to be more stable than the T2-X-PPBZ·ClF complexes. This work also presents a general criterion to distinguish a chlorine-shared halogen bond from a traditional halogen bond and sheds light on the formation of the chlorine-shared halogen bond. The binding energy of T1-X-PPBZ·ClF complexes correlates well with the negative electrostatic potential of the P atom and PA value of the substituted PPBZ. The properties of both T1-X-PPBZ·ClF and T2-X-PPBZ·ClF complexes are analyzed using atom-in-molecule, natural bond orbital, and symmetry-adapted perturbation theory calculations. The variation of the Cl-F bond distances and the redshifts of the ν(ClF) vibration resulting from the interaction with PPBZs are discussed.
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Affiliation(s)
- Dipankar Sutradhar
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bangalore, Karnataka 560012, India
| | - Sumitra Bhattarai
- Department
of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Salma Parveen
- Department
of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Asit K. Chandra
- Department
of Chemistry, North-Eastern Hill University, Shillong 793022, India
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8
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Sarkar R, Kumari S, Kundu TK. Density functional theory based studies on the adsorption of rare-earth ions from hydrated nitrate salt solutions on g-C 3N 4 monolayer surface. J Mol Graph Model 2020; 97:107577. [PMID: 32179421 DOI: 10.1016/j.jmgm.2020.107577] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/28/2020] [Accepted: 03/03/2020] [Indexed: 12/14/2022]
Abstract
This article represents density functional theory (DFT) based comparative analysis on six trivalent rare-earth ions (RE3+; RE: Y, La, Ce, Sm, Eu and Gd) absorption, from the respective nitrate-hexahydrate salts, on graphitic carbon nitride (g-C3N4) 2D monolayer, and the photocatalytic properties of the RE3+ adsorbed g-C3N4 systems (g-C3N4/RE3+) based on the ground-state electronic structure calculations. Structure, stability and coordination chemistry of two configurations of each hydrated RE-salt system are discussed in detail. Both DFT (B3LYP/SDD) and semi-empirical (Sparkle/PM7) calculations identify the central N6 vacancy of pristine g-C3N4 as the most suitable site for RE3+ adsorption. Bader's QTAIM, Mayer bond order and charge population analyses (ADCH, CHELPG and DDEC) are performed to describe the bond characteristics within the systems under study. Thermochemical calculations suggest that the adsorption process is thermodynamically more feasible for higher atomic number (Z) RE3+ [Sm3+, Eu3+ and Gd3+], compared to lower-Z RE3+ [Y3+, La3+ and Ce3+] ions. Besides, the better photocatalytic properties of higher-Z RE3+ adsorbed g-C3N4 systems are revealed from better HOMO-LUMO delocalization, decreased HOMO-LUMO gap, increased softness, higher electrophilicity and electron transfer parameter, compared to pristine or lower-Z RE3+ adsorbed g-C3N4 systems, as obtained from Hirshfeld orbital compositions, density of states and condensed Fukui function analyses.
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Affiliation(s)
- Ranjini Sarkar
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
| | - Sweta Kumari
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Tarun Kumar Kundu
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
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9
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Sutradhar D, Chandra AK. Cl⋅⋅⋅Cl Halogen Bonding: Nature and Effect of Substituent at Electron Donor Cl atom. ChemistrySelect 2020. [DOI: 10.1002/slct.201903546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dipankar Sutradhar
- Department of Chemistry, Centre for Advanced Studies North-Eastern Hill University Shillong 793022 India
| | - Asit K. Chandra
- Department of Chemistry, Centre for Advanced Studies North-Eastern Hill University Shillong 793022 India
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10
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Zegke M, Zhang X, Pidchenko I, Hlina JA, Lord RM, Purkis J, Nichol GS, Magnani N, Schreckenbach G, Vitova T, Love JB, Arnold PL. Differential uranyl(v) oxo-group bonding between the uranium and metal cations from groups 1, 2, 4, and 12; a high energy resolution X-ray absorption, computational, and synthetic study. Chem Sci 2019; 10:9740-9751. [PMID: 32055343 PMCID: PMC6993744 DOI: 10.1039/c8sc05717f] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 08/26/2019] [Indexed: 11/21/2022] Open
Abstract
Uranyl Pacman takes them all: the bonding of s- and d-block cations to uranyl is compared by experiment, spectroscopy and theory.
The uranyl(vi) ‘Pacman’ complex [(UO2)(py)(H2L)] A (L = polypyrrolic Schiff-base macrocycle) is reduced by Cp2Ti(η2-Me3SiC
Created by potrace 1.16, written by Peter Selinger 2001-2019
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CSiMe3) and [Cp2TiCl]2 to oxo-titanated uranyl(v) complexes [(py)(Cp2TiIIIOUO)(py)(H2L)] 1 and [(ClCp2TiIVOUO)(py)(H2L)] 2. Combination of ZrII and ZrIV synthons with A yields the first ZrIV–uranyl(v) complex, [(ClCp2ZrOUO)(py)(H2L)] 3. Similarly, combinations of Ae0 and AeII synthons (Ae = alkaline earth) afford the mono-oxo metalated uranyl(v) complexes [(py)2(ClMgOUO)(py)(H2L)] 4, [(py)2(thf)2(ICaOUO)(py) (H2L)] 5; the zinc complexes [(py)2(XZnOUO)(py)(H2L)] (X = Cl 6, I 7) are formed in a similar manner. In contrast, the direct reactions of Rb or Cs metal with A generate the first mono-rubidiated and mono-caesiated uranyl(v) complexes; monomeric [(py)3(RbOUO)(py)(H2L)] 8 and hexameric [(MOUO)(py)(H2L)]6 (M = Rb 8b or Cs 9). In these uranyl(v) complexes, the pyrrole N–H atoms show strengthened hydrogen-bonding interactions with the endo-oxos, classified computationally as moderate-strength hydrogen bonds. Computational DFT MO (density functional theory molecular orbital) and EDA (energy decomposition analysis), uranium M4 edge HR-XANES (High Energy Resolution X-ray Absorption Near Edge Structure) and 3d4f RIXS (Resonant Inelastic X-ray Scattering) have been used (the latter two for the first time for uranyl(v) in 7 (ZnI)) to compare the covalent character in the UV–O and O–M bonds and show the 5f orbitals in uranyl(vi) complex A are unexpectedly more delocalised than in the uranyl(v) 7 (ZnI) complex. The Oexo–Zn bonds have a larger covalent contribution compared to the Mg–Oexo/Ca–Oexo bonds, and more covalency is found in the U–Oexo bond in 7 (ZnI), in agreement with the calculations.
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Affiliation(s)
- Markus Zegke
- EaStCHEM School of Chemistry , The University of Edinburgh , David Brewster Road , Edinburgh EH9 3FJ , UK . ; ; ; Tel: +44(0) 130 650 5429
| | - Xiaobin Zhang
- Department of Chemistry , University of Manitoba , Winnipeg , MB R3T 2N2 , Canada . ; ; Tel: +1-204-474-6261
| | - Ivan Pidchenko
- Institute for Nuclear Waste Disposal (INE) , Karlsruhe Institute of Technology (KIT) , P.O. Box 3640 , 76021 Karlsruhe , Germany .
| | - Johann A Hlina
- EaStCHEM School of Chemistry , The University of Edinburgh , David Brewster Road , Edinburgh EH9 3FJ , UK . ; ; ; Tel: +44(0) 130 650 5429
| | - Rianne M Lord
- EaStCHEM School of Chemistry , The University of Edinburgh , David Brewster Road , Edinburgh EH9 3FJ , UK . ; ; ; Tel: +44(0) 130 650 5429
| | - Jamie Purkis
- EaStCHEM School of Chemistry , The University of Edinburgh , David Brewster Road , Edinburgh EH9 3FJ , UK . ; ; ; Tel: +44(0) 130 650 5429
| | - Gary S Nichol
- EaStCHEM School of Chemistry , The University of Edinburgh , David Brewster Road , Edinburgh EH9 3FJ , UK . ; ; ; Tel: +44(0) 130 650 5429
| | - Nicola Magnani
- Institute for Transuranium Elements , Joint Research Centre , European Commission , PO Box 2340 , 76125 Karlsruhe , Germany
| | - Georg Schreckenbach
- Department of Chemistry , University of Manitoba , Winnipeg , MB R3T 2N2 , Canada . ; ; Tel: +1-204-474-6261
| | - Tonya Vitova
- Institute for Nuclear Waste Disposal (INE) , Karlsruhe Institute of Technology (KIT) , P.O. Box 3640 , 76021 Karlsruhe , Germany .
| | - Jason B Love
- EaStCHEM School of Chemistry , The University of Edinburgh , David Brewster Road , Edinburgh EH9 3FJ , UK . ; ; ; Tel: +44(0) 130 650 5429
| | - Polly L Arnold
- EaStCHEM School of Chemistry , The University of Edinburgh , David Brewster Road , Edinburgh EH9 3FJ , UK . ; ; ; Tel: +44(0) 130 650 5429
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11
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Korlyukov AA, Nelyubina YV. Quantum chemical methods in charge density studies from X-ray diffraction data. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4866] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Jana G, Jha R, Pan S, Chattaraj PK. Microsolvation of lithium–phosphorus double helix: a DFT study. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2462-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Duan M, Li P, Zhao H, Xie F, Ma J. Organic Compounds of Actinyls: Systematic Computational Assessment of Structural and Topological Properties in [AnO 2(C 2O 4) n] (2 n-2)- (An = U, Np, Pu, Am; n = 1-3) Complexes. Inorg Chem 2019; 58:3425-3434. [PMID: 30785280 DOI: 10.1021/acs.inorgchem.8b03538] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Exploring the bonding features between organics and actinide elements is a fundamental topic in nuclear waste separation. In this work, [AnO2(C2O4) n](2 n-2)- (An = U, Np, Pu, and Am; n = 1-3) complexes have been characterized by density functional theory. The actinyl oxalate complexes are found to exhibit the typical An-Oyl, An-Oeq bonds and Oyl-An-Oyl angles. Interatomic interaction analyzed by electron density difference, charge decomposition analysis, charges population, bond order, electron localization function, and quantum theory of atom in molecules indicates that An-Oeq bonds are ionic (closed-shell) bonding interaction with a small degree of covalent character. The similarities and differences between isomers have been discussed in the actinide coordination chemistry, and the orbital interactions also have been investigated through total, partial, and overlap population density of state diagrams. Besides, the electrostatic potential was used to predict the adsorption sites on the molecular vdW surface.
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Affiliation(s)
- Meigang Duan
- Laser Spectroscopy Laboratory, School of Physics and Electronics Engineering, Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan 030006 , China
| | - Peng Li
- Laser Spectroscopy Laboratory, School of Physics and Electronics Engineering, Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan 030006 , China
| | - Huifeng Zhao
- Laser Spectroscopy Laboratory, School of Physics and Electronics Engineering, Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan 030006 , China
| | - Feng Xie
- Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education , Tsinghua University , Beijing 100084 , China
| | - Jie Ma
- Laser Spectroscopy Laboratory, School of Physics and Electronics Engineering, Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan 030006 , China
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14
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Ruiz J, Sol D, García L, Mateo MA, Vivanco M, Van der Maelen JF. Generation and Tunable Cyclization of Formamidinate Ligands in Carbonyl Complexes of Mn(I): An Experimental and Theoretical Study. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00898] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Guthardt R, Oetzel J, Schweizer JI, Bruhn C, Langer R, Maurer M, Vícha J, Shestakova P, Holthausen MC, Siemeling U. Reactive Dimerization of an N-Heterocyclic Plumbylene: C-H Activation with Pb II. Angew Chem Int Ed Engl 2019; 58:1387-1391. [PMID: 30457693 DOI: 10.1002/anie.201811559] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Indexed: 11/11/2022]
Abstract
The N-heterocyclic plumbylene [Fe{(η5 -C5 H4 )NSiMe3 }2 Pb:] is in equilibrium with an unprecedented dimer in solution, whose formation involves the cleavage of a strong C-H bond and concomitant formation of a Pb-C and an N-H bond. According to a mechanistic DFT assessment, dimer formation does not involve direct PbII insertion into a cyclopentadienyl C-H bond, but is best described as an electrophilic substitution. The bulkier plumbylene [Fe{(η5 -C5 H4 )NSitBuMe2 }2 Pb:] shows no dimerization, but compensates its electrophilicity by the formation of an intramolecular Fe-Pb bond.
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Affiliation(s)
- Robin Guthardt
- Institut für Chemie, Universität Kassel, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
| | - Jan Oetzel
- Institut für Chemie, Universität Kassel, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
| | - Julia I Schweizer
- Institut für Anorganische und Analytische Chemie, Goethe-Universität, Max-von-Laue-Strasse 7, 60438, Frankfurt am Main, Germany
| | - Clemens Bruhn
- Institut für Chemie, Universität Kassel, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
| | - Robert Langer
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Martin Maurer
- Institut für Chemie, Universität Kassel, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
| | - Jan Vícha
- Centre of Polymer Systems, Tomas Bata University in Zlín, Třída T. Bati 5678, 76001, Zlín, Czech Republic
| | - Pavletta Shestakova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Ulica Akad. G. Bonchev, Building 9, 1113, Sofia, Bulgaria
| | - Max C Holthausen
- Institut für Anorganische und Analytische Chemie, Goethe-Universität, Max-von-Laue-Strasse 7, 60438, Frankfurt am Main, Germany
| | - Ulrich Siemeling
- Institut für Chemie, Universität Kassel, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
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16
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Guthardt R, Oetzel J, Schweizer JI, Bruhn C, Langer R, Maurer M, Vícha J, Shestakova P, Holthausen MC, Siemeling U. Reactive Dimerization of an N-Heterocyclic Plumbylene: C−H Activation with PbII. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201811559] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Robin Guthardt
- Institut für Chemie; Universität Kassel; Heinrich-Plett-Strasse 40 34132 Kassel Germany
| | - Jan Oetzel
- Institut für Chemie; Universität Kassel; Heinrich-Plett-Strasse 40 34132 Kassel Germany
| | - Julia I. Schweizer
- Institut für Anorganische und Analytische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Clemens Bruhn
- Institut für Chemie; Universität Kassel; Heinrich-Plett-Strasse 40 34132 Kassel Germany
| | - Robert Langer
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Martin Maurer
- Institut für Chemie; Universität Kassel; Heinrich-Plett-Strasse 40 34132 Kassel Germany
| | - Jan Vícha
- Centre of Polymer Systems; Tomas Bata University in Zlín; Třída T. Bati 5678 76001 Zlín Czech Republic
| | - Pavletta Shestakova
- Institute of Organic Chemistry with Centre of Phytochemistry; Bulgarian Academy of Sciences; Ulica Akad. G. Bonchev, Building 9 1113 Sofia Bulgaria
| | - Max C. Holthausen
- Institut für Anorganische und Analytische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Ulrich Siemeling
- Institut für Chemie; Universität Kassel; Heinrich-Plett-Strasse 40 34132 Kassel Germany
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17
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Moreno‐Alcántar G, Hernández‐Toledo H, Guevara‐Vela JM, Rocha‐Rinza T, Martín Pendás Á, Flores‐Álamo M, Torrens H. Stability and
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Influence in Fluorinated Gold(I) Coordination Compounds. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Guillermo Moreno‐Alcántar
- Faculty of Chemistry Universidad Nacional Autónoma de México Ciudad Universitaria 04510 Coyoacán México
| | - Hugo Hernández‐Toledo
- Faculty of Chemistry Universidad Nacional Autónoma de México Ciudad Universitaria 04510 Coyoacán México
| | - José Manuel Guevara‐Vela
- Department of Physical and Analytical Chemistry Universidad de Oviedo Julián Clavería 8 E‐33006 Oviedo Spain
| | - Tomás Rocha‐Rinza
- Institute of Chemistry Universidad Nacional Autónoma de México Ciudad Universitaria 04510 Coyoacán México
| | - Ángel Martín Pendás
- Department of Physical and Analytical Chemistry Universidad de Oviedo Julián Clavería 8 E‐33006 Oviedo Spain
| | - Marcos Flores‐Álamo
- Faculty of Chemistry Universidad Nacional Autónoma de México Ciudad Universitaria 04510 Coyoacán México
| | - Hugo Torrens
- Faculty of Chemistry Universidad Nacional Autónoma de México Ciudad Universitaria 04510 Coyoacán México
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18
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Mebs S, Kalläne SI, Braun T. Hapticity of asymmetric rhodium-allyl compounds in the light of real-space bonding indicators. Z KRIST-CRYST MATER 2018. [DOI: 10.1515/zkri-2017-2141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractRhodium boryl complexes are valuable catalysts for hydro- or diboration reactions of alkenes, but can also react with ketones (R2C=O) and imines (R2C=NR′) giving rise to insertion products having formally Rh–R2C–O/NR′–B linkages. The resulting molecular structures, however, may show complex metal–ligand and ligand–ligand interaction patterns with often unclear metal–ligand connectivities (hapticities, ηn). In order to assign the correct hapticity in a set of asymmetric rhodium-allyl compounds with molecular structures indicating η1−5bonding, a comprehensive DFT study was conducted. The study comprises determination of a variety of real-space bonding indicators derived from computed electron and pair densities according to the AIM, ELI-D, NCI, and DORI topological and surface approaches, which uncover the metal–ligand connectivties and suggest an asymmetric ligand–metal donation/metal–ligand back-donation framework according to the Dewar–Chatt–Duncanson model.
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Affiliation(s)
- Stefan Mebs
- Institut für Experimentelle Physik , Freie Universität Berlin , Arnimalle 14 , D-14195 Berlin , Germany , Tel.: +493083856084
| | - Sabrina Imke Kalläne
- Institut für Chemie , Humboldt-Universität zu Berlin , Brook-Taylor-Str. 2 , D-12489 Berlin , Germany
| | - Thomas Braun
- Institut für Chemie , Humboldt-Universität zu Berlin , Brook-Taylor-Str. 2 , D-12489 Berlin , Germany
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19
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Sutradhar D, Bhattarai S, Zeegers-Huyskens T, Chandra AK. Unusual Fluorine Substitution Effect on S···Cl Bonding between Sulfides and Atomic Chlorine. J Phys Chem A 2018; 122:7142-7150. [PMID: 30122037 DOI: 10.1021/acs.jpca.8b04495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A theoretical investigation on the interaction of various sulfides and their fluorinated counterparts (H2S, HSF, F2S, CH3SH, CH3SF, CH2FSH, CH2FSF, NH2SH, NH2SF) with atomic chlorine has been carried out using density functional theory (DFT) based LC-BLYP/aug-cc-pVTZ and sophisticated ab initio CCSD(T)/aug-cc-pVQZ methods. The present study is intended to discuss the influence of the substituents implanted at the sulfur atom on the bonding parameters. The optimized geometries reveal that intermolecular S···Cl distances are short and range between 2.423 and 2.561 Å. A strong contraction of the S-F bond is also predicted. Two-center-three-electron S···Cl bonds are formed; the interaction energies are large and range from -33.9 to -70.1 kJ mol-1. Very surprisingly, the interaction energies are greater and the intermolecular distances are shorter for F-substituted sulfides than for unsubstituted ones. This is in complete contrast with the lower proton affinities and less negative electrostatic potentials of fluorinated sulfides. AIM analysis, the charge transfer from the sulfur atom to the Cl atom, and the spin densities on the Cl and S atoms are considered to explain this unusual behavior. The hyperconjugation energies from the LP(F) to the σ*(S-Cl) antibonding orbital can be considered as one of the stabilizing factors for the greater stability of the fluorinated complexes over the nonfluorinated ones.
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Affiliation(s)
- Dipankar Sutradhar
- Department of Chemistry, Centre for Advanced Studies , North-Eastern Hill University , 793022 Shillong , India
| | - Sumitra Bhattarai
- Department of Chemistry, Centre for Advanced Studies , North-Eastern Hill University , 793022 Shillong , India
| | | | - Asit K Chandra
- Department of Chemistry, Centre for Advanced Studies , North-Eastern Hill University , 793022 Shillong , India
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20
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Sieffert N. Molecular motions in a fluxional (η 6-indenyl)tricarbonylchromium hemichelate: a density functional theory molecular dynamics study. Dalton Trans 2018; 47:8906-8920. [PMID: 29944149 DOI: 10.1039/c8dt01779d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A comprehensive Density Functional Theory (DFT) study is reported on molecular motions occurring in a hemichelate complex, formally composed of the (η3-2-methylallyl)Pd(ii) cation bonded to a (η6-indenyl)tricarbonylchromium anion, that has been recognized as being highly fluxional in a previous experimental study (C. Werlé, M. Hamdaoui, C. Bailly, X.-F. Le Goff, L. Brelot and J.-P. Djukic, J. Am. Chem. Soc., 2013, 135, 1715-1718). Its dynamics can be decomposed into three molecular motions: (i) the indenyl ligand can switch from a η1 to a η3 binding mode to Pd, (ii) the Cr(CO)3 moiety forms loose interactions with Pd, and can potentially rotate around the aryl-Cr axis, and (iii) the binding mode of the 2-methylallyl ligand to Pd may undergo partial decoordination or rotation around the Pd-C axis. Herein, DFT based molecular dynamics simulations have been performed to provide microscopic insights into the dynamical behaviour of the complex on a 100 ps timescale. QTAIM analyses have been performed over trajectories to investigate the rearrangement of its electronic structure over time. Next, free energy calculations, following the metadynamics approach, have been undertaken to compute thermodynamic and kinetic data relative to the molecular rearrangements occurring in the complex. The results show that the fastest motion is the ring slippage of the indenyl ligand, and that this motion is coupled with the rotation of the 2-methylallyl ligand. Conversely, the Cr(CO)3 rotation is significantly slower, however, a fast rocking motion is observed, consisting of transient approaches of carbonyl ligands to Pd. QTAIM analyses point to loose Pd/carbonyl and Pd/Cr interactions on average, that significantly evolve over time as fluxional motions occur.
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21
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Kovalenko AA, Nelyubina YV, Korlyukov AA, Lyssenko KA, Ananyev IV. The truth is out there: the metal-π interactions in crystal of Cr(CO)3(pcp) as revealed by the study of vibrational smearing of electron density. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/zkri-2017-2085] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The vibrational smearing of electron density was studied in the crystal of complex of Cr(CO)3 with [2.2]paracyclophane. The combination of theoretical and experimental methods, including periodic calculations and screening of DFT calculated and multipole-decomposed electron densities, was utilized to reveal the vibrational smearing of electron density and its influence on the multipole-constructed electron density. The multipole model, commonly used to treat the high-resolution X-ray diffraction data, was shown to be rather inaccurate in description of electron density and its vibrational smearing in metal-π complex where the interchange between diatomic interactions can occur. Namely, some bond critical points can be hidden while analyzing multipole-decomposed electron density with proved effects of vibrational smearing even if the deconvolution problem is overcome by using the invariom approach. On the contrary, the recently proposed “clouds of critical point variation” (CCPV) approach is demonstrated as the route to gather all reasonable bonding trends and to reconstruct static electron density pattern in metal-π complexes.
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Affiliation(s)
- Anna A. Kovalenko
- M.V. Lomonosov Moscow State University , GSP-1, Leninskie Gory Str. , 119991, Moscow , Russia
- A.N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilova Str., 28 , 119991, Moscow , Russia
- Pirogov Russian National Research Medical University , Ostrovitianov Str., 1 , 117997, Moscow , Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS , Leninsky Prospect, 47 , 119991, Moscow , Russian Federation
| | - Yulia V. Nelyubina
- M.V. Lomonosov Moscow State University , GSP-1, Leninskie Gory Str. , 119991, Moscow , Russia
- A.N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilova Str., 28 , 119991, Moscow , Russia
- Pirogov Russian National Research Medical University , Ostrovitianov Str., 1 , 117997, Moscow , Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS , Leninsky Prospect, 47 , 119991, Moscow , Russian Federation
| | - Alexander A. Korlyukov
- M.V. Lomonosov Moscow State University , GSP-1, Leninskie Gory Str. , 119991, Moscow , Russia
- A.N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilova Str., 28 , 119991, Moscow , Russia
- Pirogov Russian National Research Medical University , Ostrovitianov Str., 1 , 117997, Moscow , Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS , Leninsky Prospect, 47 , 119991, Moscow , Russian Federation
| | - Konstantin A. Lyssenko
- M.V. Lomonosov Moscow State University , GSP-1, Leninskie Gory Str. , 119991, Moscow , Russia
- A.N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilova Str., 28 , 119991, Moscow , Russia
- Pirogov Russian National Research Medical University , Ostrovitianov Str., 1 , 117997, Moscow , Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS , Leninsky Prospect, 47 , 119991, Moscow , Russian Federation
| | - Ivan V. Ananyev
- A.N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilova Str., 28 , 119991, Moscow , Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS , Leninsky Prospect, 47 , 119991, Moscow , Russian Federation
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22
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Du J, Jiang G. A Systematic Theoretical Study of UC 6: Structure, Bonding Nature, and Spectroscopy. Inorg Chem 2017; 56:13794-13800. [PMID: 29095610 DOI: 10.1021/acs.inorgchem.7b01871] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The study of uranium carbides has received renewed attention in recent years due to the potential use of these compounds as fuels in new generations of nuclear reactors. The isomers of the UC6 cluster were determined by DFT and ab initio methods. The structures obtained using SC-RECP for U were generally consistent with those obtained using an all-electron basis set (ZORA-SARC). The CCSD(T) calculations indicated that two isomers had similar energies and may coexist in laser evaporation experiments. The nature of the U-C bonds in the different isomers was examined via a topological analysis of the electron density, and the results indicated that the U-C bonds are predominantly closed-shell (ionic) interactions with a certain degree of covalent character in all cases, particularly in the linear species. The IR and UV-vis spectra of the isomers were theoretically simulated to provide information that can be used to identify the isomers of UC6 in future experiments.
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Affiliation(s)
- Jiguang Du
- College of Physical Science and Technology and ‡Insitute of Atomic and Molecular Physics, Sichuan University , Chengdu 610064, People's Republic of China
| | - Gang Jiang
- College of Physical Science and Technology and ‡Insitute of Atomic and Molecular Physics, Sichuan University , Chengdu 610064, People's Republic of China
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23
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Moreno-Alcántar G, Hess K, Guevara-Vela JM, Rocha-Rinza T, Martín Pendás Á, Flores-Álamo M, Torrens H. π-Backbonding and non-covalent interactions in the JohnPhos and polyfluorothiolate complexes of gold(i). Dalton Trans 2017; 46:12456-12465. [PMID: 28682376 DOI: 10.1039/c7dt00961e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We studied the influence of changing the degree of fluorination in eight new gold(i) derivatives containing both JohnPhos phosphine and polyfluorinated thiolates: [Au(SRF)(JPhos)], JPhos = P(C6H4-C6H5)(t-But)2 and RF = C6F5 (1), C6HF4 (2), C6H3F2-3,5 (3), C6H3F2-2,4 (4), C6H4F-2 (5), C6H4F-3 (6), C6H4F-4 (7) and CF3 (8). We determined the molecular and crystal structures of all new compounds by single crystal X-ray diffraction. Later, we characterised the chemical bonding scenario with quantum chemical topology tools, specifically the Quantum Theory of Atoms in Molecules (QTAIM) and the analysis of the NCI-index. Our QTAIM results indicate that while the linear S-Au-P moiety is unaffected by the variation of the fluorine content on the thiolates and that Au-S and Au-P bond strengths are mostly constant for all compounds in the series, the π character of gold bonds seems to be modified by the fluorination of the substituents at the thiolate ligand. Besides, the examination of the NCI-index reveals the presence of weak Au-πPhenyl non-covalent interactions in all compounds. Overall, this study shows the relevance of (i) the π-backbonding properties of the metal centre and (ii) different non-covalent interactions in the stability of JohnPhos gold(i) compounds.
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Affiliation(s)
- Guillermo Moreno-Alcántar
- Department of Inorganic and Nuclear Chemistry, School of Chemistry, UNAM, Ciudad Universitaria, 04510 CDMX, Mexico.
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24
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Sirohiwal A, Hathwar VR, Dey D, Chopra D. Investigation of Chemical Bonding in In Situ Cryocrystallized Organometallic Liquids. Chemphyschem 2017; 18:2859-2863. [DOI: 10.1002/cphc.201700585] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/14/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Abhishek Sirohiwal
- Crystallography and Crystal Chemistry Laboratory; Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal- 462066 Madhya Pradesh India
- Current address: Max Planck Institute for Chemical Energy Conversion; Stiftstrasse 34-36 45470 Mülheim an der Ruhr Germany
| | - Venkatesha R. Hathwar
- Division of Physics; Faculty of Pure and Applied Sciences; University of Tsukuba; 1-1-1, Tennodai Tsukuba Ibaraki 305-8571 Japan
| | - Dhananjay Dey
- Crystallography and Crystal Chemistry Laboratory; Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal- 462066 Madhya Pradesh India
| | - Deepak Chopra
- Crystallography and Crystal Chemistry Laboratory; Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal- 462066 Madhya Pradesh India
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25
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26
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Lepetit C, Fau P, Fajerwerg K, Kahn ML, Silvi B. Topological analysis of the metal-metal bond: A tutorial review. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.04.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Huang PW, Wang CZ, Chai ZF, Shi WQ. A theoretical study on geometry, bonding nature, and stability of several anhydrous and hydrated In(III), Gd(III) and Yb(III) complexes in liquid scintillator solvents. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Ananyev IV, Karnoukhova VA, Dmitrienko AO, Lyssenko KA. Toward a Rigorous Definition of a Strength of Any Interaction Between Bader's Atomic Basins. J Phys Chem A 2017; 121:4517-4522. [PMID: 28520433 DOI: 10.1021/acs.jpca.7b01495] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Strength of interaction between Bader's atomic basins, enclosed by zero-flux surfaces of electron distribution, was proposed to be a measure of elastic deformation of an interaction. The set containing 53 atomic aggregate and covering all range of interaction strength (from van der Waals interactions to triple covalent bonds) was calculated by DFT and perturbation theory methods. Further analysis was performed to seek correlations between various local quantities based on electron density and effective force constants of stretching diatomic vibrations. The linear trend between effective force constants and the potential energy density at the (3, -1) critical point of electron distribution was found. This correlation was improved by the integration of the potential energy density over an interbasin zero-flux surface of electron density. Simple mechanical explanation of established trends is presented. The correlations can be further used to at least semiquantitatively compare any pair of interactions between Bader's atomic basins.
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Affiliation(s)
- Ivan V Ananyev
- X-ray Structural Laboratory, A. N. Nesmeyanov Institute of Organoelement Compounds RAS , 119991 Moscow, Russian Federation.,N. D. Zelinsky Institute of Organic Chemistry RAS , 119991 Moscow, Russian Federation
| | - Valentina A Karnoukhova
- X-ray Structural Laboratory, A. N. Nesmeyanov Institute of Organoelement Compounds RAS , 119991 Moscow, Russian Federation.,N. D. Zelinsky Institute of Organic Chemistry RAS , 119991 Moscow, Russian Federation
| | - Artem O Dmitrienko
- X-ray Structural Laboratory, A. N. Nesmeyanov Institute of Organoelement Compounds RAS , 119991 Moscow, Russian Federation
| | - Konstantin A Lyssenko
- X-ray Structural Laboratory, A. N. Nesmeyanov Institute of Organoelement Compounds RAS , 119991 Moscow, Russian Federation
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29
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Sun X, Du J. A DFT study of 3d (d1–d10) transition-metal phthalocyanines (TMPcs): Bonding natures, electronic adsorption spectroscopy. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2017. [DOI: 10.1142/s0219633617500365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The structures, electronic properties, bonding characters and UV–Vis spectra of [Formula: see text] ([Formula: see text]–[Formula: see text]) transition-metal phthalocyanines (TMPcs) molecules have been studied with different density function theory (DFT) methods. The calculated structural parameters agree well with previous experimental or theoretical values. Natural Population Analysis (NPA) charge revealed that [Formula: see text]–[Formula: see text] hybridizations occur when [Formula: see text] TM atoms are involved in chemical bondings. The spin magnetic moments of TMPcs are mainly from the contribution of [Formula: see text] electrons. Conceptual density functional theory (CDFT) results indicate that [Formula: see text] TMPcs molecules are willing to accept further electrons. The TM–N chemical bonds show very weak covalent nature, and are consistent with bond order analyses. Time-dependent density function theory (TD-DFT) calculations were carried out to simulate the UV–Vis spectra, and corresponding electronic transfers for dominant peaks were also obtained.
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Affiliation(s)
- Xiyuan Sun
- College of Science, Sichuan Agricultural University, Ya’an 625014, P. R. China
| | - Jiguang Du
- College of Physical Science and Technology, Sichuan University, Chengdu 610064, P. R. China
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30
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Sutradhar D, Zeegers-Huyskens T, Chandra AK. Theoretical study of the S…Cl interaction between sulfides and atomic chlorine. Nature and strength of the two-center three-electron bond. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.01.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Possible sequestration of polar gas molecules by superhalogen supported aluminum nitride nanoflakes. J Mol Model 2016; 22:271. [DOI: 10.1007/s00894-016-3153-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 10/13/2016] [Indexed: 12/25/2022]
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32
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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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33
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Bis{(4-methylthio)phenylthio}methane as assembling ligand for the construction of Cu(I) and Hg(II) coordination polymers. Crystal structures and topological (AIM) analysis of the bonding. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.07.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Nijesh K, De S, Parameswaran P. Homopolar dihydrogen bonding in ligand stabilized diberyllium hydride complexes, Be2(CH3)2H2L2 (L = H(-), CO, N-heterocyclic carbene and CN(-)). Dalton Trans 2016; 45:7836-46. [PMID: 27051892 DOI: 10.1039/c5dt04293c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure and bonding of diberyllium hydride complexes Be2(CH3)2H2L2, where L = H(-) (), CO (), NHC () and CN(-) () were studied in detail and compared with isostructural diborane (). The bonding in Be2(CH3)2H2L2 was analyzed considering the interaction of two Be(CH3)L fragments with the bridging (μ-H)2 fragment. The geometrical and molecular orbital (MO) analyses indicate that the extent of back donation from Be→L (L = CO, NHC and CN(-)) is less in Be2(CH3)2H2L2 as compared to that in Be(CH3)L fragments. The NBO, MO and QTAIM analyses indicate a significant charge concentration at the bridging (μ-H)2 in Be2(CH3)2H2L2, whereas charge depletion is observed at the (μ-H)2 fragment in diborane. The accumulation of electron density at the bridging (μ-H)2 is duly reflected in the detection of a (μ-H)-(μ-H) bond path in Be2(CH3)2H2L2, in spite of having longer (μ-H)-(μ-H) distances. The interaction between the bridging H-atoms in diberyllium hydride complexes can be considered as homopolar hydride-hydride dihydrogen bonding. The direction of the charge flow is from (μ-H)2 to BH2 in diborane, whereas from Be(CH3)L to (μ-H)2 in Be2(CH3)2H2L2. Hence, the bridging (μ-H)2 fragments in Be2(CH3)2H2L2 are electron rich as compared to the (μ-H)2 fragment in diborane. The experimental report of the ring opening of the (Ar)NHC (Ar = 2,4,6-trimethylphenyl) ligand through hydride transfer from [Be(CH3)H((Ar)NHC)]2 corroborates well with the presence of electron rich bridging (μ-H)2 in diberyllium hydride complexes.
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Affiliation(s)
- Karikkeeriyil Nijesh
- Department of Chemistry, National Institute of Technology Calicut, Kozhikode, Kerala, 673 601 India.
| | - Susmita De
- Department of Chemistry, National Institute of Technology Calicut, Kozhikode, Kerala, 673 601 India.
| | - Pattiyil Parameswaran
- Department of Chemistry, National Institute of Technology Calicut, Kozhikode, Kerala, 673 601 India.
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35
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Du J, Sun X, Jiang G. Exploring the Interaction Natures in Plutonyl (VI) Complexes with Topological Analyses of Electron Density. Int J Mol Sci 2016; 17:414. [PMID: 27077844 PMCID: PMC4848887 DOI: 10.3390/ijms17040414] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 01/13/2016] [Accepted: 01/15/2016] [Indexed: 12/23/2022] Open
Abstract
The interaction natures between Pu and different ligands in several plutonyl (VI) complexes are investigated by performing topological analyses of electron density. The geometrical structures in both gaseous and aqueous phases are obtained with B3LYP functional, and are generally in agreement with available theoretical and experimental results when combined with all-electron segmented all-electron relativistic contracted (SARC) basis set. The Pu- O y l bond orders show significant linear dependence on bond length and the charge of oxygen atoms in plutonyl moiety. The closed-shell interactions were identified for Pu-Ligand bonds in most complexes with quantum theory of atoms in molecules (QTAIM) analyses. Meanwhile, we found that some Pu-Ligand bonds, like Pu-OH(-), show weak covalent. The interactive nature of Pu-ligand bonds were revealed based on the interaction quantum atom (IQA) energy decomposition approach, and our results indicate that all Pu-Ligand interactions is dominated by the electrostatic attraction interaction as expected. Meanwhile it is also important to note that the quantum mechanical exchange-correlation contributions can not be ignored. By means of the non-covalent interaction (NCI) approach it has been found that some weak and repulsion interactions existed in plutonyl(VI) complexes, which can not be distinguished by QTAIM, can be successfully identified.
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Affiliation(s)
- Jiguang Du
- College of Physical Science and Technology, Sichuan University, Chengdu 610064, China.
| | - Xiyuan Sun
- College of Sciences, Sichuan Agricultural University, Ya'an 625014, China.
| | - Gang Jiang
- Institutes of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China.
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A topological analysis of the bonding in [M2(CO)10] and [M3(μ-H)3(CO)12] complexes (M = Mn, Tc, Re). Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1821-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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37
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Systematic analysis of structural and spectroscopic properties of neptunimine (HN=NpH2) and plutonimine (HN=PuH2). J Mol Model 2015; 21:316. [DOI: 10.1007/s00894-015-2856-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 11/02/2015] [Indexed: 10/22/2022]
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38
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Chakraborty D, Chattaraj PK. Interaction of BN- and BP-doped graphene nanoflakes with some representative neutral molecules and anions. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1059511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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Vologzhanina AV, Kats SV, Penkova LV, Pavlenko VA, Efimov NN, Minin VV, Eremenko IL. Combined analysis of chemical bonding in a CuIIdimer using QTAIM, Voronoi tessellation and Hirshfeld surface approaches. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2015; 71:543-54. [DOI: 10.1107/s2052520615015279] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 08/16/2015] [Indexed: 11/10/2022]
Abstract
Interaction of 1-(1H-pyrazol-5-yl)ethanone oxime (H2PzOx) with copper(II) chloride in the presence of pyridine afforded a binuclear discrete [Cu2(HPzOx)2Cl2py2] complex, which was characterized by Fourier transform–IR and electron paramagnetic resonance (EPR) spectra, magnetochemistry and high-resolution X-ray diffraction experiments. Multipole refinement of X-ray diffraction data and density-functional theory (DFT) calculations of an isolated molecule allowed charge and spin distributions to be obtained for this compound. Magnetochemistry data, EPR spectra and DFT calculations of an isolated molecule show antiferromagnetic coupling between copper(II) ions. The spin distribution suggests an exchange pathwayviathe bridging pyrazole ring in the equatorial plane of the CuN4Cl coordination polyhedron, thus providing support for the classical superexchange mechanism; the calculated value of the magnetic coupling constant −2Jis equal to 220 cm−1, which compares well with the experimental value of 203 ± 2 cm−1. Chemical connectivity was derived by Bader's `quantum theory of atoms in molecules' and compared with Voronoi tessellation and Hirshfeld surface representations of crystal space. All methodologies gave a similar qualitative and semi-quantitative description of intra- and intermolecular connectivity.
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Pan S, Gupta A, Saha R, Merino G, Chattaraj PK. A coupled-cluster study on the noble gas binding ability of metal cyanides versus metal halides (metal = Cu, Ag, Au). J Comput Chem 2015; 36:2168-76. [DOI: 10.1002/jcc.24190] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/06/2015] [Accepted: 08/12/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Sudip Pan
- Department of Chemistry and Centre for Theoretical Studies; Indian Institute of Technology; Kharagpur 721302 India
| | - Ashutosh Gupta
- Department of Chemistry and Centre for Theoretical Studies; Indian Institute of Technology; Kharagpur 721302 India
- Department of Chemistry; Udai Pratap Autonomous College; Varanasi Uttar Pradesh 221002 India
| | - Ranajit Saha
- Department of Chemistry and Centre for Theoretical Studies; Indian Institute of Technology; Kharagpur 721302 India
| | - Gabriel Merino
- Departamento de Física Aplicada; Centro de Investigación y de Estudios Avanzados Unidad Mérida.; km 6 Antigua carretera a Progreso. Apdo. Postal 73, Cordemex 97310 Mérida, Yuc. México
| | - Pratim K. Chattaraj
- Department of Chemistry and Centre for Theoretical Studies; Indian Institute of Technology; Kharagpur 721302 India
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41
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Stammler HG, Blomeyer S, Berger RJF, Mitzel NW. Trimethylaluminium: Bindungsverhältnisse nach Ladungs- und Stromtopologie. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505665] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Stammler HG, Blomeyer S, Berger RJF, Mitzel NW. Trimethylaluminum: Bonding by Charge and Current Topology. Angew Chem Int Ed Engl 2015; 54:13816-20. [DOI: 10.1002/anie.201505665] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/10/2015] [Indexed: 11/06/2022]
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43
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Pan S, Moreno D, Ghosh S, Chattaraj PK, Merino G. Structure and stability of noble gas bound
EX3+ compounds (E = C, Ge, Sn, Pb; X = H, F, Cl, Br). J Comput Chem 2015; 37:226-36. [DOI: 10.1002/jcc.23986] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 06/02/2015] [Accepted: 06/06/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Sudip Pan
- Department of Chemistry and Centre for Theoretical Studies; Indian Institute of Technology Kharagpur; Kharagpur West Bengal 721302 India
| | - Diego Moreno
- Departamento de Física Aplicada; Centro de Investigación y de Estudios Avanzados; Unidad Mérida. Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex Mérida Yucatan 97310 México
| | - Sreyan Ghosh
- Department of Chemistry and Centre for Theoretical Studies; Indian Institute of Technology Kharagpur; Kharagpur West Bengal 721302 India
| | - Pratim K. Chattaraj
- Department of Chemistry and Centre for Theoretical Studies; Indian Institute of Technology Kharagpur; Kharagpur West Bengal 721302 India
| | - Gabriel Merino
- Departamento de Física Aplicada; Centro de Investigación y de Estudios Avanzados; Unidad Mérida. Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex Mérida Yucatan 97310 México
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Abdel-Azeim S, Jedidi A, Eppinger J, Cavallo L. Mechanistic insights into the reductive dehydroxylation pathway for the biosynthesis of isoprenoids promoted by the IspH enzyme. Chem Sci 2015; 6:5643-5651. [PMID: 28757951 PMCID: PMC5511988 DOI: 10.1039/c5sc01693b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 06/22/2015] [Indexed: 11/21/2022] Open
Abstract
Here, we report an integrated quantum mechanics/molecular mechanics (QM/MM) study of the bio-organometallic reaction pathway of the 2H+/2e- reduction of (E)-4-hydroxy-3-methylbut-2-enyl pyrophosphate (HMBPP) into the so called universal terpenoid precursors isopentenyl pyrophosphate (IPP) and dimethylallyl pyrophosphate (DMAPP), promoted by the IspH enzyme. Our results support the viability of the bio-organometallic pathway through rotation of the OH group of HMBPP away from the [Fe4S4] cluster at the core of the catalytic site, to become engaged in a H-bond with Glu126. This rotation is synchronous with π-coordination of the C2 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 1111111111111111111111111111111111 1111111111111111111111111111111111 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 1111111111111111111111111111111111 1111111111111111111111111111111111 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 C3 double bond of HMBPP to the apical Fe atom of the [Fe4S4] cluster. Dehydroxylation of HMBPP is triggered by a proton transfer from Glu126 to the OH group of HMBPP. The reaction pathway is completed by competitive proton transfer from the terminal phosphate group to the C2 or C4 atom of HMBPP.
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Affiliation(s)
- Safwat Abdel-Azeim
- King Abdullah University of Science and Technology , KAUST Catalysis Research Center , Physical Sciences and Engineering Division , Thuwal 23955-6900 , Saudi Arabia .
| | - Abdesslem Jedidi
- King Abdullah University of Science and Technology , KAUST Catalysis Research Center , Physical Sciences and Engineering Division , Thuwal 23955-6900 , Saudi Arabia .
| | - Jorg Eppinger
- King Abdullah University of Science and Technology , KAUST Catalysis Research Center , Physical Sciences and Engineering Division , Thuwal 23955-6900 , Saudi Arabia .
| | - Luigi Cavallo
- King Abdullah University of Science and Technology , KAUST Catalysis Research Center , Physical Sciences and Engineering Division , Thuwal 23955-6900 , Saudi Arabia .
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Chakraborty D, Chattaraj PK. In quest of a superhalogen supported covalent bond involving a noble gas atom. J Phys Chem A 2015; 119:3064-74. [PMID: 25733034 DOI: 10.1021/jp513018v] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The possibility of having neutral Xe-bound compounds mediated by some representative transition metal fluorides of general formula MX3 (where M=Ru, Os, Rh, Ir, Pd, Pt, Ag, Au and X=F) has been investigated through density functional theory based calculations. Nature of interaction between MX3 and Xe moieties has been characterized through detailed electron density, charge density and bond energy decomposition analyses. The feasibility of having compounds of general formula XeMX3 at 298 K has been predicted through thermodynamic considerations. The nature of interaction in between Xe and M atoms is partly covalent in nature and the orbital interaction is the dominant contributor toward these interactions as suggested by energy decomposition analysis.
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Affiliation(s)
- Debdutta Chakraborty
- Department of Chemistry and Centre for Theoretical Studies Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Pratim Kumar Chattaraj
- Department of Chemistry and Centre for Theoretical Studies Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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46
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Sutradhar D, Zeegers-Huyskens T, Chandra AK. Theoretical study of the interaction between pyridine derivatives and atomic chlorine. Substituent effect and nature of the bonding. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1014440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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47
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48
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Wolf H, Jørgensen MRV, Chen YS, Herbst-Irmer R, Stalke D. Charge density investigations on [2,2]-paracyclophane – in data we trust. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2015; 71:10-19. [PMID: 25643711 DOI: 10.1107/s2052520614026080] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 11/27/2014] [Indexed: 06/04/2023]
Abstract
Four datasets on [2,2]-paracyclophane were collected in-house and at the Advanced Photon Source at two different temperatures for charge density investigation. Global data quality indicators such as high resolution, high I/σ(I) values, low merging R values and high multiplicity were matched for all four datasets. The structural parameters did not show significant differences, but the synchrotron data depicted deficiencies in the topological analysis. In retrospect these deficiencies could be assigned to the low quality of the innermost data, which could have been identified by e.g. merging R values for only these reflections. In the multipole refinement these deficiencies could be monitored using DRK-plot and residual density analysis. In this particular example the differences in the topological parameters were relatively small but significant.
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Affiliation(s)
- Hilke Wolf
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstraße 4, 37077 Göttingen, Germany
| | - Mads R V Jørgensen
- Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, Aarhus C, DK-8000, Denmark
| | - Yu-Sheng Chen
- ChemMatCARS, Advanced Photon Source, University of Chicago, 9700 S. Cass. Avenue, Argonne, IL 60539, USA
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstraße 4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstraße 4, 37077 Göttingen, Germany
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49
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Pan S, Gupta A, Mandal S, Moreno D, Merino G, Chattaraj PK. Metastable behavior of noble gas inserted tin and lead fluorides. Phys Chem Chem Phys 2015; 17:972-82. [DOI: 10.1039/c4cp03856h] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The metastable FNgEF and FNgEF3 (E = Sn, Pb; Ng = Kr–Rn) are the first reported neutral compounds possessing Ng–Sn and Ng–Pb covalent bonds.
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Affiliation(s)
- Sudip Pan
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology
- Kharagpur
- India
| | - Ashutosh Gupta
- Department of Chemistry
- Udai Pratap Autonomous College
- Varanasi
- India
| | - Subhajit Mandal
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology
- Kharagpur
- India
| | - Diego Moreno
- Departamento de Física Aplicada
- Centro de Investigación y de Estudios Avanzados Unidad Mérida
- Mérida
- México
| | - Gabriel Merino
- Departamento de Física Aplicada
- Centro de Investigación y de Estudios Avanzados Unidad Mérida
- Mérida
- México
| | - Pratim K. Chattaraj
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology
- Kharagpur
- India
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50
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Pan S, Saha R, Chattaraj PK. On the stability of noble gas bound 1-tris(pyrazolyl)borate beryllium and magnesium complexes. NEW J CHEM 2015. [DOI: 10.1039/c5nj00983a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1-Tris(pyrazolyl)borate beryllium and magnesium cationic complexes are found to bind Ar–Rn atoms quite effectively.
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Affiliation(s)
- Sudip Pan
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology Kharagpur
- India
| | - Ranajit Saha
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology Kharagpur
- India
| | - Pratim K. Chattaraj
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology Kharagpur
- India
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