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Cyraniak A, Freza S, Skurski P. An ab initio study on the stability of isolated phosphaalkene synthons. Phys Chem Chem Phys 2023; 25:27196-27203. [PMID: 37789824 DOI: 10.1039/d3cp03770c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Using ab initio methods and flexible basis sets, we examined the electronic, geometric, and thermodynamic stabilities of selected phosphaalkene synthons matching the (PCR2)- formula (R = H, CH3, C6H5, C6F5, and Mes). All isolated synthons considered were found to be electronically stable and susceptible to neither fragmentation nor isomerization processes. The structures corresponding to the most stable isomers of the studied phosphaalkene synthons contain a PC double-bond (whose presence was confirmed by natural bond orbital occupancies of σ(P-C) and π(P-C) approaching 2 electrons) and two R substituents connected to the carbon atom in either (PCR2)- (for R = H, CH3, C6H5, and Mes) or (PCF-R-R)- (for R = C6F5) manner. Vertical electron detachment energies (spanning the 0.924-3.118 eV range) characterizing the phosphaalkene synthons were predicted and discussed.
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Affiliation(s)
- Adrianna Cyraniak
- Laboratory of Quantum Chemistry, Department of Theoretical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
| | - Sylwia Freza
- Laboratory of Quantum Chemistry, Department of Theoretical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
| | - Piotr Skurski
- Laboratory of Quantum Chemistry, Department of Theoretical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
- QSAR Lab Ltd., Trzy Lipy 3, 80-172 Gdańsk, Poland
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2
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Anusiewicz I, Skurski P. Strongly Bound Polynuclear Anions Comprising Scandium Fluoride Building Blocks. Inorg Chem 2023; 62:17022-17029. [PMID: 37782304 PMCID: PMC10583212 DOI: 10.1021/acs.inorgchem.3c02937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Indexed: 10/03/2023]
Abstract
The stability of polynuclear anions composed of ScF3 building blocks was studied by using ab initio and density functional theory electronic structure methods and flexible basis sets. Thorough exploration of ground state potential energy surfaces of (Sc2F7)-, (Sc3F10)-, and (Sc4F13)- anions which may be viewed as comprising ScF3 fragments and the additional fluorine atom led to determining the isomeric structures thereof. It was found that the most stable isomers which are predicted to dominate at room temperature correspond to the compact structures enabling the formation of a large number of Sc-F-Sc bridging linkages rather than to the chain-like structures. The vertical electron detachment energies of the (ScnF3n+1)- anions were found to be very large (spanning the 10.85-12.29 eV range) and increasing with the increasing number of scandium atoms (n) and thus the ScF3 building blocks involved in the structure. Thermodynamic stability of (ScnF3n+1)- anions (i.e., their susceptibility to fragmentation) was also verified and discussed.
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Affiliation(s)
- Iwona Anusiewicz
- Laboratory
of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Piotr Skurski
- Laboratory
of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
- Department
of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
- QSAR
Lab Ltd., Trzy Lipy 3, 80-172 Gdańsk, Poland
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3
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Srivastava AK. Recent progress on the design and applications of superhalogens. Chem Commun (Camb) 2023; 59:5943-5960. [PMID: 37128706 DOI: 10.1039/d3cc00428g] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The research on superhalogens has successfully completed four decades. After their prediction in 1981 and experimental verification in 1999, such species have attracted attention due to their unusual structures and intriguing applications. Superhalogens are species whose electron affinity exceeds that of halogen or whose anions possess a larger vertical detachment energy than that of halides. Initially, these species were designed using s and p block atoms having a central electropositive atom as the core with excess electronegative atoms as ligands such as F, Cl, O etc. The last decade has witnessed enormous progress in the field of superhalogens. The transition metal atoms have played the role of the central core and a variety of new ligands have been explored. Further, new classes of superhalogens such as polynuclear superhalogens, magnetic superhalogens, aromatic superhalogens, etc. have been reported. The first application of superhalogens as strong oxidizers appeared much before their conceptualization. In the last decade, however, their applications have spanned a variety of fields such as energy storage, superacids, organic superconductors, ionic liquids, liquid crystals, etc. This makes research in the field of superhalogens truly interdisciplinary. This article is intended to highlight the progress on the design and applications of superhalogens in the last decade.
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Affiliation(s)
- Ambrish Kumar Srivastava
- Department of Physics, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, 223009, Uttar Pradesh, India.
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4
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Opoku E, Pawłowski F, Ortiz JV. Electron Propagator Theory of Vertical Electron Detachment Energies of Anions: Benchmarks and Applications to Nucleotides. J Phys Chem A 2023; 127:1085-1101. [PMID: 36656801 DOI: 10.1021/acs.jpca.2c08372] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A new generation of ab initio electron-propagator self-energy approximations that are free of adjustable parameters is tested on a benchmark set of 55 vertical electron detachment energies of closed-shell anions. Comparisons with older self-energy approximations indicate that several new methods that make the diagonal self-energy approximation in the canonical Hartree-Fock orbital basis provide superior accuracy and computational efficiency. These methods and their acronyms, mean absolute errors (in eV), and arithmetic bottlenecks expressed in terms of occupied (O) and virtual (V) orbitals are the opposite-spin, non-Dyson, diagonal second-order method (os-nD-D2, 0.2, OV2), the approximately renormalized quasiparticle third-order method (Q3+, 0.15, O2V3) and the approximately renormalized, non-Dyson, linear, third-order method (nD-L3+, 0.1, OV4). The Brueckner doubles with triple field operators (BD-T1) nondiagonal electron-propagator method provides such close agreement with coupled-cluster single, double, and perturbative triple replacement total energy differences that it may be used as an alternative means of obtaining standard data. The new methods with diagonal self-energy matrices are the foundation of a composite procedure for estimating basis-set effects. This model produces accurate predictions and clear interpretations based on Dyson orbitals for the photoelectron spectra of the nucleotides found in DNA.
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Affiliation(s)
- Ernest Opoku
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312, United States
| | - Filip Pawłowski
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312, United States
| | - J V Ortiz
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312, United States
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5
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Wang H, Dong C, Yang J. Theoretical Insights into the Geometrical Evolution, Photoelectron Spectra, and Vibrational Properties of YGe n - ( n = 6-20) Anions: From Y-Linked to Y-Encapsulated Structures. ACS OMEGA 2022; 7:36330-36342. [PMID: 36278055 PMCID: PMC9583326 DOI: 10.1021/acsomega.2c03983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
The structural evolution behavior of germanium anionic clusters doped with the rare-earth metal yttrium, YGe n - (n = 6-20), has been investigated using a mPW2PLYP density functional scheme and an ABCluster structure searching technique. The results reveal that with increasing cluster size n, the structure evolution pattern is from the Y-linked framework (n = 10-14), where Y serves as a linker (the Y atom bridges two germanium subclusters), to the Y-encapsulated framework (n = 15-20), where the Y atom is located in the center of the Ge cage. The simulated PES spectra show satisfying agreement with the experimental PES spectra for n = 12-20, which reveals that the global minimum structures reported here are reliable. In particular, the anionic YGe16 - nanocluster is found to be the most stable structure in the size range of n = 6-20 through analyzes of the relative stability, highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) gap, spherical jellium model, and isochemical shielding surface. Moreover, spectral properties such as infrared and Raman spectra were reported. In addition, the UV-vis spectra of the YGe16 - nanocluster are in good agreement with solar energy distribution, showing that such substances serve as multifunctional building blocks to be potentially used in optoelectronic devices or solar energy converters.
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Affiliation(s)
- Haibo Wang
- School
of Chemical Engineering, Inner Mongolia
University of Technology, and Inner Mongolia Key Laboratory of Theoretical
and Computational Chemistry Simulation, Hohhot010051, Peoples Republic of China
| | - Caixia Dong
- School
of Mining and Technology, Inner Mongolia
University of Technology, Hohhot010051, Peoples Republic of
China
| | - Jucai Yang
- School
of Chemical Engineering, Inner Mongolia
University of Technology, and Inner Mongolia Key Laboratory of Theoretical
and Computational Chemistry Simulation, Hohhot010051, Peoples Republic of China
- School
of Energy and Power Engineering, Inner Mongolia
University of Technology, Hohhot010051, Peoples Republic of
China
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6
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Abyar F, Novak I. Investigation on the electronic structures of thiamine and related compounds: Free base or salt? J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Yang Z, Rehman AU, Cao Z, Yang J. Structural evolution, photoelectron spectra and vibrational properties of anionic GdGe n - ( n = 5-18) nanoalloy clusters: a DFT insight. RSC Adv 2022; 12:22020-22030. [PMID: 36043068 PMCID: PMC9364359 DOI: 10.1039/d2ra04037a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/01/2022] [Indexed: 12/02/2022] Open
Abstract
The structural growth of Gd-doped germanium anionic nanoclusters, GdGe n - (n = 5-18), has been explored via quantum chemistry calculations using the mPW2PLYP method and an unprejudiced structural searching technique known as ABCluster. The optimized geometries exhibited that when n = 10-14, the structural evolution favors the Gd-linked configuration where the Gd atom as a connector bridges two Ge subgroups, while the Gd atom is encapsulated in a closed cage-like Ge frame when n = 15-18. The properties like magnetic moment, charge transfer, relative stability, HOMO-LUMO gap, photoelectron spectra, and infrared and Raman spectra have been predicted. The information of these spectra could provide extra approaches to experimentally determine the electronic structures and equilibrium configuration of these compounds. The largest spin magnetic moment of 7 μ B is attained via half-filled 4f states. The GdGe16 - nanocluster is determined to be a superatom because its total valence of 75 electrons can be distributed to the orbital sequence of 1S21P6(4f7)1D101F142S22P21G182P42D10, which complies with not only Hund's rule, but also the spherical jellium model. Particularly, its UV-Vis spectra match well with solar energy distribution. Such materials act as nano multifunctional building units potentially used in solar energy converters or ultra-highly sensitive near-infrared photodetectors.
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Affiliation(s)
- Zhaofeng Yang
- School of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation Hohhot 010051 Peoples Republic of China
| | - Aziz U Rehman
- School of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation Hohhot 010051 Peoples Republic of China
| | - Zhenzhu Cao
- School of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation Hohhot 010051 Peoples Republic of China
| | - Jucai Yang
- School of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of Theoretical and Computational Chemistry Simulation Hohhot 010051 Peoples Republic of China
- School of Energy and Power Engineering, Inner Mongolia University of Technology Hohhot 010051 Peoples Republic of China
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8
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Opoku E, Pawłowski F, Ortiz JV. Double Rydberg anions, Rydberg radicals and micro-solvated cations with ammonium-water kernels. Phys Chem Chem Phys 2022; 24:18347-18360. [PMID: 35880699 DOI: 10.1039/d2cp02570a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly accurate ab initio electron-propagator and coupled-cluster methods are employed to predict the vertical electron attachment energies (VEAEs) of NH4+(H2O)n (n = 1-4) cationic clusters. The VEAEs decrease with increasing n and the corresponding Dyson orbitals are diffused over peripheral, non-hydrogen bonded protons. Clusters formed from NH4- double Rydberg anions (DRAs) and stabilized by hydrogen bonding or electrostatic interactions are studied through calculations on NH4-(H2O)n complexes and are compared with more stable H-(NH3)(H2O)n isomers. Structures that have cationic and anionic congeners have notable changes in geometry. For all values of n, the hydride-molecule complex H-(NH3)(H2O)n is always the most stable, with large vertical electron detachment energies (VEDEs). NH4-(H2O)n DRA isomers are predicted to have VEDEs that correspond to energetically well-separated peaks in an anion photoelectron spectrum. Less stable DRA isomers display proton donation from the tetrahedral NH4- fragment to water molecules and VEDEs close to those of previously discovered DRAs. The most stable DRA isomers feature tetrahedral NH4- fragments without H bridges to water molecules and VEDEs that increase with n. Dyson orbitals of NH4-(H2O)n DRAs occupy regions beyond the exterior non-bridging O-H and N-H bonds. Thus, the Rydberg electrons in the uncharged Rydberg radicals and DRAs are held near the outer protons of the water and ammonia molecules. Several bound low-lying excited states of the doublet Rydberg radicals have single electrons occupying delocalized Dyson orbitals of s-like, p-like, d-like, or f-like nodal patterns with the following Aufbau principle: 1s, 1p, 1d, 2s, 2p, 1f.
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Affiliation(s)
- Ernest Opoku
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL 36849-5312, USA.
| | - Filip Pawłowski
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL 36849-5312, USA.
| | - Joseph Vincent Ortiz
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL 36849-5312, USA.
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9
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Kalita AJ, Rohman SS, Kashyap C, Ullah SS, Baruah I, Mazumder LJ, Konwar D, Guha AK. Planar Octacoordinate Aluminium in Dual Aromatic AlBe4N4− Cluster. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02295-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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10
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Cyraniak A, Faron D, Freza S, Anusiewicz I, Skurski P. Superhalogen Anions Supported by the Systems Comprising Alternately Aligned Boron and Nitrogen Central Atoms. Front Chem 2022; 10:863408. [PMID: 35529695 PMCID: PMC9068874 DOI: 10.3389/fchem.2022.863408] [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: 01/27/2022] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Using DFT/(B3LYP/wB97XD/B2PLYPD) and OVGF electronic structure methods with flexible atomic orbital basis sets, we examined the series of polynuclear superhalogen anions matching the (BF3(BN) n F4n+1)- formula (for n = 1-10,13,18-20) containing alternately aligned boron and nitrogen central atoms decorated with fluorine ligands. It was found that the equilibrium structures of these anions correspond to fully extended chains (with each B and N central atom surrounded by four substituents arranged in a tetrahedral manner) and thus mimic the globally stable fully extended (all-trans) conformations of higher n-alkanes. The vertical electron detachment energies of the (BF3(BN) n F4n+1)- anions were found to exceed 8 eV in all cases and gradually increase with the increasing number of n. The approximate limiting value of vertical electron binding energy that could be achieved for such polynuclear superhalogen anions was estimated as equal to ca. 10.7 eV.
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Affiliation(s)
- Adrianna Cyraniak
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Dawid Faron
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Sylwia Freza
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Iwona Anusiewicz
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Piotr Skurski
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
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11
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Cyraniak A, Freza S, Skurski P. An ab initio study on the stability of isolated borata-alkene synthons. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Bruneval F, Dattani N, van Setten MJ. The GW Miracle in Many-Body Perturbation Theory for the Ionization Potential of Molecules. Front Chem 2022; 9:749779. [PMID: 35004607 PMCID: PMC8733722 DOI: 10.3389/fchem.2021.749779] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/14/2021] [Indexed: 11/30/2022] Open
Abstract
We use the GW100 benchmark set to systematically judge the quality of several perturbation theories against high-level quantum chemistry methods. First of all, we revisit the reference CCSD(T) ionization potentials for this popular benchmark set and establish a revised set of CCSD(T) results. Then, for all of these 100 molecules, we calculate the HOMO energy within second and third-order perturbation theory (PT2 and PT3), and, GW as post-Hartree-Fock methods. We found GW to be the most accurate of these three approximations for the ionization potential, by far. Going beyond GW by adding more diagrams is a tedious and dangerous activity: We tried to complement GW with second-order exchange (SOX), with second-order screened exchange (SOSEX), with interacting electron-hole pairs (WTDHF), and with a GW density-matrix (γGW). Only the γGW result has a positive impact. Finally using an improved hybrid functional for the non-interacting Green’s function, considering it as a cheap way to approximate self-consistency, the accuracy of the simplest GW approximation improves even more. We conclude that GW is a miracle: Its subtle balance makes GW both accurate and fast.
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Affiliation(s)
- Fabien Bruneval
- CEA, Service de Recherches de Métallurgie Physique, Direction des Energies, Université Paris-Saclay, Paris, France
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13
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Abyar F, Novak I. A comprehensive spectroscopic study of urocanic acid: OVGF and EOM-CCSD approaches. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Pereira-da-Silva J, Rodrigues R, Ramos J, Brígido C, Botnari A, Silvestre M, Ameixa J, Mendes M, Zappa F, Mullock SJ, Araújo JMM, Varella MTDN, Cornetta LM, da Silva FF. Electron Driven Reactions in Tetrafluoroethane: Positive and Negative Ion Formation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:1459-1468. [PMID: 33998788 DOI: 10.1021/jasms.1c00057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In the search for alternatives to chlorine-containing gases, tetrafluoroethane, CF3CH2F (R134a), a widely used refrigerant gas, has been recognized as a promising substitute for dichlorodifluoromethane, CCl2F2 (R12). When R12 is replaced by R134a, the global warming potential drops from 8100 to 1430, the ozone depletion potential changes from 1 to 0, and the atmospheric lifetime decreases from 100 to 14 years. Electron interactions in the gas phase play a fundamental role in the atmospheric sciences. Here, we present a detailed study on electron-driven fragmentation pathways of CF3CH2F, in which we have investigated processes induced by both electron ionization and electron attachment. The measurements allow us to report the ion efficiency curves for ion formation in the energy range of 0 up to 25 eV. For positive ion formation, R134a dissociates into a wide assortment of ions, in which CF3+ is observed as the most abundant out of seven ions with a relative intensity above 2%. The results are supported by quantum chemical calculations based on bound state techniques, electron-impact ionization models, and electron-molecule scattering simulations, showing a good agreement. Moreover, the experimental first ionization potential was found at 13.10 ± 0.17 eV and the second at around 14.25 eV. For negative ion formation, C2F3- was detected as the only anion formed, above 8.3 eV. This study demonstrates the role of electrons in the dissociation of R134a, which is relevant for an improvement of the refrigeration processes as well as in atmospheric chemistry and plasma sciences.
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Affiliation(s)
- João Pereira-da-Silva
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Rodrigo Rodrigues
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - João Ramos
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Carlos Brígido
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Alexandru Botnari
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Miguel Silvestre
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - João Ameixa
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Mónica Mendes
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Fábio Zappa
- Departamento de Física-ICE, Universidade Federal de Juiz de Fora, Campus Universitário, 36036-900 Juiz de Fora, MG, Brazil
| | - Stephen J Mullock
- Kore Technology Ltd., Cambridge Science Park, Cambridge CB4 4WF, U.K
| | - João M M Araújo
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Márcio T do N Varella
- Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, 05508-090 São Paulo, Brazil
| | - Lucas M Cornetta
- Instituto de Física Gleb Wataghin da Universidade Estadual de Campinas, 13083-859 Campinas, Brazil
| | - Filipe Ferreira da Silva
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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Brzeski J, Freza S, Czapla M, Skurski P. An Excess Electron Bound to Magnesium Halides and Basic Grignard Compounds (RMgX and RMgR, R = Me, Et, Ph; X = F, Cl, Br). J Phys Chem A 2021; 125:2334-2343. [PMID: 33689341 PMCID: PMC8041300 DOI: 10.1021/acs.jpca.1c00750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Grignard reagents
are commonly used in organic synthesis, yet their
ability to form stable anionic states has not been recognized thus
far. In this work, representative examples of RMgF, RMgCl, and RMgBr
molecules involving methyl, ethyl, and phenyl functional groups serving
as R substituents are investigated regarding their equilibrium structures,
adiabatic electron affinities, and vertical electron detachment energies
of their daughter anions. The electronic stabilities determined for
the negatively charged Grignard compounds are then compared to those
predicted for their corresponding magnesium halides. The anions formed
by RMgX (R = Me, Et, Ph; X = F, Cl, Br) molecules are found to be
adiabatically electronically stable valence-bound systems characterized
by relatively large vertical electron detachment energies spanning
the 0.79–1.62 eV range. In addition, significant structural
relaxation upon attachment of an excess electron is predicted for
all Grignard compounds considered. Furthermore, the re-examination
of the anions formed by magnesium halides resulted in recognizing
them as valence-bound rather than dipole-bound anions, in contrast
to the earlier interpretations.
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Affiliation(s)
- Jakub Brzeski
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Sylwia Freza
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Marcin Czapla
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Piotr Skurski
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.,Henry Eyring Center for Theoretical Chemistry, Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
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16
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Casavola AR, Cartoni A, Castrovilli MC, Borocci S, Bolognesi P, Chiarinelli J, Catone D, Avaldi L. VUV Photofragmentation of Chloroiodomethane: The Iso-CH 2I-Cl and Iso-CH 2Cl-I Radical Cation Formation. J Phys Chem A 2020; 124:7491-7499. [PMID: 32786965 PMCID: PMC8010789 DOI: 10.1021/acs.jpca.0c05754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Dihalomethanes
XCH2Y (X and Y = F, Cl, Br, and I) are a class of compounds
involved in several processes leading to the release of halogen atoms,
ozone consumption, and aerosol particle formation. Neutral dihalomethanes
have been largely studied, but chemical physics properties and processes
involving their radical ions, like the pathways of their decomposition,
have not been completely investigated. In this work the photodissociation
dynamics of the ClCH2I molecule has been explored in the
photon energy range 9–21 eV using both VUV rare gas discharge
lamps and synchrotron radiation. The experiments show that, among
the different fragment ions, CH2I+ and CH2Cl+, which correspond to the Cl- and I-losses,
respectively, play a dominant role. The experimental ionization energy
of ClCH2I and the appearance energies of the CH2I+ and CH2Cl+ ions are in agreement
with the theoretical results obtained at the MP2/CCSD(T) level of
theory. Computational investigations have been also performed to study
the isomerization of geminal [ClCH2I]•+ into the iso-chloroiodomethane isomers: [CH2I–Cl]•+ and [CH2Cl–I]•+.
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Affiliation(s)
- Anna Rita Casavola
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Antonella Cartoni
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy.,Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Mattea Carmen Castrovilli
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Stefano Borocci
- Department for Innovation in Biological, Agrofood and Forest Systems, University of Tuscia, Viterbo 01100, Italy.,Institute for Biological Systems-CNR (ISB-CNR), Area della Ricerca di Roma 1, Via Salaria, Km 29.500,, 00015 Monterotondo, Italy
| | - Paola Bolognesi
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Jacopo Chiarinelli
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Daniele Catone
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Tor Vergata, Via del Fosso del Cavaliere, 00133 Rome, Italy
| | - Lorenzo Avaldi
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
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17
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Tikhonov SA, Sidorin AE, Samoilov IS, Borisenko AV, Vovna VI. Photoelectron spectra and electronic structure of boron diacetate formazanates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 238:118441. [PMID: 32403076 DOI: 10.1016/j.saa.2020.118441] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
The electronic structure and cationic states of two 1,5-diphenylformazanes and two boron diacetate (B(OAc)2) formazanates were modeled using the outer valence Green's function (OVGF) and density functional theory (DFT) methods. Comparison of data of the OVGF and ultraviolet photoelectron spectroscopy (UPS) methods made it possible to determine an effect of functional groups and complexing agents on energies of cationic states. Addition of NO2-group at the γ-position of the chelate cycle causes stabilization of levels the five upper occupied molecular orbitals (MO) and destabilization of the bonding orbital π3Ph + π3 level. The levels of MOs π3Ph-π3 and n- are stabilized due to influence of the complexing agent B(OAc)2, with a difference in the shift of 0.67 eV. The ionization energies (In) changes for the π-orbitals of benzene rings are within the error of the OVGF method. Under methylation of phenyl groups, the differences between the calculated In, corresponding to the π-orbitals of aromatic substituents, are in good agreement with the experimental In shifts at transition from benzene to toluene. According to the OVGF method, in all the studied complexes the lowest unoccupied molecular orbital (LUMO) is localized mainly on the chelate cycle and has a strong acceptor character, which should contribute the low-lying charge-transfer electronic excitations. Moreover, an application of the DFT analog of the Koopmans' theorem with the BHHLYP and B2PLYP functionals made it possible to determine qualitatively a sequence of cationic states and energy intervals between them in the spectral range up to 10 eV. The DFT/wB97x/cc-pVTZ method data on the energy gap between the highest occupied molecular orbital (HOMO) and LUMO levels correlate with the OVGF/cc-pVTZ calculation results.
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Affiliation(s)
- Sergey A Tikhonov
- Far Eastern Federal University, School of Natural Sciences, Vladivostok 690950, Russian Federation.
| | - Andrey E Sidorin
- Far Eastern Federal University, School of Natural Sciences, Vladivostok 690950, Russian Federation
| | - Ilya S Samoilov
- Saint Petersburg State University, Department of Photonics, St. Petersburg 199034, Russian Federation
| | - Aleksandr V Borisenko
- Vladivostok Branch of Russian Customs Academy, Vladivostok 690034, Russian Federation
| | - Vitaliy I Vovna
- Far Eastern Federal University, School of Natural Sciences, Vladivostok 690950, Russian Federation
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18
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Tripodal Podand Ligand with a Superhalogen Nature as an Effective Molecular Trap. Symmetry (Basel) 2020. [DOI: 10.3390/sym12091441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Tris(2-methoxyethyl) fluoroborate anion (TMEFA), anovel tripodal ligand based on the BF4− superhalogen anion, is proposed and was investigated theoretically using ab initio MP2 (second-order Møller-Plesset perturbational method) and OVGF (outer valence Green function) methods. The studied molecule comprises three 2-methoxyethoxy groups (-O-CH2-CH2-O-CH3) connected to a central boron atom, which results in the C3-symmetry of the compound. The resulting anion was stable against fragmentation processes and its vertical electron detachment energy was found to be 5.72 eV. Due to its equilibrium structure resembling that of classical tripodal podands, the [F-B(O-CH2-CH2-O-CH3)3]− anion is capable of binding metal cations using its three arms, and thus may form strongly bound ionic complexes such as [F-B(O-CH2-CH2-O-CH3)3]−/Li+ and [F-B(O-CH2-CH2-O-CH3)3]−/Mg2+. The binding energies predicted for such compounds far exceed those of the similar neutral classical podand ligands, which likely makes the [F-B(O-CH2-CH2-O-CH3)3]− system a more effective molecular trap or steric shielding agent with respect to selected metal cations.
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19
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Ortiz JV. Dyson-orbital concepts for description of electrons in molecules. J Chem Phys 2020; 153:070902. [DOI: 10.1063/5.0016472] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- J. V. Ortiz
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312, USA
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20
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Anusiewicz I, Faron D, Skurski P, Simons J. Unusual and Conventional Dative Bond Formation by s 2 Lone Pair Donation from Alkaline Earth Metal Atoms to BH 3, AlH 3, and GaH 3. J Phys Chem A 2020; 124:5369-5377. [PMID: 32498519 DOI: 10.1021/acs.jpca.0c03432] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using ab initio electronic structure methods with flexible atomic orbital basis sets, we examined the nature of the bonding arising from donation of an ns2 electron pair on an alkaline earth atom (Mg or Ca) into a vacant n'p orbital on the group 13 atom of BH3, AlH3, or GaH3. We also examined what happens when an excess electron is attached to form corresponding molecular anions. Although the geometries of MgBH3, MgAlH3, MgGaH3, and CaBH3 are found to be much as one would expect for datively bound molecules, CaAlH3 and CaGaH3 were found to have very unusual geometries in that their Al-H or Ga-H bonds are directed toward the Ca atom rather than away, as in the other compounds. Internal electrostatic Coulomb attractions between the partially positively charged Ca center and the partially negatively charged H centers were suggested as a source of these unusual geometries. The other novel finding is that the electron affinities (EAs) of all six M'-MH3 species lie in the 0.7-1.0 eV range, which is suggestive of ionic electronic structures for the neutrals even though the partial charges on the alkaline earth centers are as low as 0.3 atomic units. Partial positive charge on the alkaline earth atoms combined with substantial electron affinities of the BH3, AlH3, and GaH3 groups, but only when distorted from planar geometries, were suggested to be the primary contributors to the large EAs.
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Affiliation(s)
- Iwona Anusiewicz
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Dawid Faron
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Piotr Skurski
- Laboratory of Quantum Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.,Henry Eyring Center for Theoretical Chemistry, Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Jack Simons
- Henry Eyring Center for Theoretical Chemistry, Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
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21
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Brzeski J, Czapla M, Skurski P. Icosahedral Carborane Superacids and their Conjugate Bases Comprising H, F, Cl, and CN Substituents: A Theoretical Investigation of Monomeric and Dimeric Cages. Chempluschem 2020; 85:312-318. [PMID: 32031331 DOI: 10.1002/cplu.202000007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/29/2020] [Indexed: 11/08/2022]
Abstract
Theoretical investigation of the H(CHB11 X11 ) (X=H, F, Cl, CN), H(CHB11 Xn Y11-n ) (X,Y=F, Cl; n=1,5), and dimeric (H(CHB11 X11 ))2 (X=F, Cl) carborane superacids performed at the B3LYP/6-311++G(d,p) theory level revealed the similarity of their equilibrium structures and the possibility of nearly barrierless hydrogen atom migration among the substituents attached to one side of the icosahedral CB11 cage. The vertical electron detachment energies predicted at the OVGF/6-311++G(3df,2pd) theory level for the conjugate bases (CHB11 X11 )- were found to span the 5.82-9.00 ev range. The acid strengths (manifested by the Gibbs free deprotonation energies spanning the 213-266 kcal/mol range) predicted for the icosahedral H(CHB11 X11 ) carborane systems confirm their superacidic properties which might be increased even further by the attachment of the second carborane H(CHB11 X11 ) unit that leads to a dimeric structure mimicking a part of an experimentally observed H-bridged polymeric chain. The Gibbs free deprotonation energy of the dimeric (H(CHB11 Cl11 ))2 acid was predicted to be smaller by 17 kcal/mol than that of the corresponding monomeric H(CHB11 Cl11 ) acid.
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Affiliation(s)
- Jakub Brzeski
- Laboratory of Quantum Chemistry Department of Theoretical Chemistry Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Marcin Czapla
- Laboratory of Quantum Chemistry Department of Theoretical Chemistry Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Piotr Skurski
- Laboratory of Quantum Chemistry Department of Theoretical Chemistry Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland
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22
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Potassium iodide cluster based superhalogens and superalkalis: Theoretical calculations and experimental confirmation. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Noriega L, Castro ME, Perez-Aguilar JM, Caballero NA, Sanchez-Gaytan BL, González-Vergara E, Melendez FJ. Oxidovanadium(V) complexes as promising anticancer photosensitizers. J Inorg Biochem 2020; 203:110862. [DOI: 10.1016/j.jinorgbio.2019.110862] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/22/2019] [Accepted: 09/13/2019] [Indexed: 10/25/2022]
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24
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Guo JC, Feng LY, Zhai HJ. Planar tetracoordinate carbon molecules with 14 valence electrons: examples of CBe4Mnn−2 (M = Li, Au; n = 1–3) clusters. NEW J CHEM 2020. [DOI: 10.1039/d0nj03944f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Planar tetracoordinate carbon species are viable with 14 valence electrons, which violate the 18-electron rule. Chemical bonding around the C center is governed by double 2π/6σ aromaticity.
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Affiliation(s)
- Jin-Chang Guo
- Nanocluster Laboratory
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- China
| | - Lin-Yan Feng
- Nanocluster Laboratory
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- China
| | - Hua-Jin Zhai
- Nanocluster Laboratory
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
- China
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25
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Guo JC, Feng LY, Dong C, Zhai HJ. Ternary 12-electron CBe 3X 3+ (X = H, Li, Na, Cu, Ag) clusters: planar tetracoordinate carbons and superalkali cations. Phys Chem Chem Phys 2019; 21:22048-22056. [PMID: 31565718 DOI: 10.1039/c9cp04437j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Molecules with planar tetracoordinate carbons (ptCs) are exotic in chemical bonding, and they are normally designed according to the 18-electron rule. Here we report on the viability of ptC clusters with as few as 12 valence electrons, which represent the lower limit in terms of electron counting. Specifically, we have computationally designed a class of ternary 12-electron ptC clusters, CBe3X3+ (X = H, Li, Na, Cu, Ag), based on a rhombic CBe32- unit. Computer structural searches reveal that the ptC species are global minima, whose C center is coordinated in-plane by three Be atoms and a terminal X atom via robust C-Be/C-X bonding, either covalent or ionic. The other two X atoms are on the periphery and each bridge two Be atoms. Bonding analyses show that the ptC core is governed by delocalized 2π/6σ bonding, that is, double π/σ aromaticity, which collectively conforms to the 8-electron counting. Additional 4 electrons contribute to peripheral Be-X-Be and Be-Be σ bonding. The delocalized 2π/6σ frameworks appear to be universal for all ptC clusters, ranging from 18-electron down to 12-electron systems. In other words, the ptC species are dictated entirely by the 8-electron counting. Predicted vertical electron affinities of these ptC clusters range from 3.13 to 5.48 eV, indicative of superalkali or pseudoalkali cations.
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Affiliation(s)
- Jin-Chang Guo
- Institute of Environmental Science, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006, China.
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26
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Escalona JT, Guillemin JC, Darrigan C, Chrostowska A. Spectroscopic Studies on Hydrazine-Boranes, Key Compounds for Chemical Hydrogen Storage. J Phys Chem A 2019; 123:6003-6015. [PMID: 31283226 DOI: 10.1021/acs.jpca.9b04266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hydrazine-boranes (H2NNH2·BH3 and H3B·NH2NH2·BH3) have been proposed for the storage of hydrogen, but these compounds have not created scope for extensive research works as ammonia- and methylamine-boranes have made these last decades. In the exciting research devoted to energy storage with environmentally friendly processes, hydrazine-borane, hydrazine-bisborane, and their simply substituted derivatives could provide a satisfactory response for hydrogen production and recyclability of the formed products. To date, knowledge of the physical and chemical properties of these compounds is still scarce. In this paper, the electronic structure of various hydrazine-boranes complexes is studied by ultraviolet-photoelectron spectroscopy (UV-PES), which is the experimental technique giving direct access to the energy of occupied molecular orbitals. Thus, UV-PE spectra were registered and first ionization energies were determined. Understanding of different types of interactions between nitrogen lone pairs and their variations by complexation has been our essential goal in these studies. In particular, clear stabilization of all molecular orbital energies is noted when complexation with borane takes place. Evolution of the σBN bond during the hydrogen release process upon thermal activation has also been studied experimentally by UV-PES and supported by quantum chemical calculations.
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Affiliation(s)
- Javier Torres Escalona
- CNRS/Université de Pau et des Pays de l'Adour/E2S UPPA, Institut des Sciences Analytiques et de Physicochimie pour l'Environnement et les Matériaux, UMR5254 , 64000 Pau , France.,Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR6226 , F-35000 Rennes , France
| | - Jean-Claude Guillemin
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR6226 , F-35000 Rennes , France
| | - Clovis Darrigan
- CNRS/Université de Pau et des Pays de l'Adour/E2S UPPA, Institut des Sciences Analytiques et de Physicochimie pour l'Environnement et les Matériaux, UMR5254 , 64000 Pau , France
| | - Anna Chrostowska
- CNRS/Université de Pau et des Pays de l'Adour/E2S UPPA, Institut des Sciences Analytiques et de Physicochimie pour l'Environnement et les Matériaux, UMR5254 , 64000 Pau , France
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27
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Sun WM, Wu D. Recent Progress on the Design, Characterization, and Application of Superalkalis. Chemistry 2019; 25:9568-9579. [PMID: 31025432 DOI: 10.1002/chem.201901460] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Indexed: 11/10/2022]
Abstract
Superalkalis are clusters or molecules featuring lower ionization energies (IEs) than that of cesium atoms, and thus exhibit excellent reducing properties. Such special species have great potential to be used in the synthesis of unusual charge-transfer salts and cluster-assembled nanomaterials with tailored properties, in the reduction of carbon dioxide, or as hydrogen storage materials and noble-gas-trapping agents, etc. In this regard, ongoing efforts have been devoted to designing and characterizing superalkalis of new types. The recent progress on the study of superalkalis in terms of theoretical design, characterization, and potential application is summarized in this minireview. We hope this review will not only provide a broad overview of this research field, but also highlight the prospect of further extending the experimental synthesis and practical application of superalkalis.
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Affiliation(s)
- Wei-Ming Sun
- Department of Basic Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Di Wu
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun, 130023, P. R. China
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28
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Chiarinelli J, Casavola AR, Castrovilli MC, Bolognesi P, Cartoni A, Wang F, Richter R, Catone D, Tosic S, Marinkovic BP, Avaldi L. Radiation Damage Mechanisms of Chemotherapeutically Active Nitroimidazole Derived Compounds. Front Chem 2019; 7:329. [PMID: 31157205 PMCID: PMC6528692 DOI: 10.3389/fchem.2019.00329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 04/24/2019] [Indexed: 11/15/2022] Open
Abstract
Photoionization mass spectrometry, photoelectron-photoion coincidence spectroscopic technique, and computational methods have been combined to investigate the fragmentation of two nitroimidazole derived compounds: the metronidazole and misonidazole. These molecules are used in radiotherapy thanks to their capability to sensitize hypoxic tumor cells to radiation by "mimicking" the effects of the presence of oxygen as a damaging agent. Previous investigations of the fragmentation patterns of the nitroimidazole isomers (Bolognesi et al., 2016; Cartoni et al., 2018) have shown their capacity to produce reactive molecular species such as nitric oxide, carbon monoxide or hydrogen cyanide, and their potential impact on the biological system. The results of the present work suggest that different mechanisms are active for the more complex metronidazole and misonidazole molecules. The release of nitric oxide is hampered by the efficient formation of nitrous acid or nitrogen dioxide. Although both metronidazole and misonidazole contain imidazole ring in the backbone, the side branches of these molecules lead to very different bonding mechanisms and properties.
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Affiliation(s)
- Jacopo Chiarinelli
- CNR-Istituto di Struttura Della Materia (CNR-ISM), Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
- Dipartimento di Scienze, Università di Roma Tre, Rome, Italy
| | - Anna Rita Casavola
- CNR-Istituto di Struttura Della Materia (CNR-ISM), Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
| | - Mattea Carmen Castrovilli
- CNR-Istituto di Struttura Della Materia (CNR-ISM), Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
| | - Paola Bolognesi
- CNR-Istituto di Struttura Della Materia (CNR-ISM), Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
| | - Antonella Cartoni
- CNR-Istituto di Struttura Della Materia (CNR-ISM), Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
- Dipartimento di Chimica, Sapienza Università di Roma, Rome, Italy
| | - Feng Wang
- Molecular Modelling Discovery Laboratory, Department of Chemistry and Biotechnology, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Melbourne, VIC, Australia
| | - R. Richter
- Elettra-Sincrotrone Trieste, Trieste, Italy
| | - Daniele Catone
- CNR-Istituto di Struttura Della Materia, Area della Ricerca di Tor Vergata, Rome, Italy
| | - Sanja Tosic
- Institute of Physics, Laboratory for Atomic Collision Processes, University of Belgrade, Belgrade, Serbia
| | - Bratislav P. Marinkovic
- Institute of Physics, Laboratory for Atomic Collision Processes, University of Belgrade, Belgrade, Serbia
| | - Lorenzo Avaldi
- CNR-Istituto di Struttura Della Materia (CNR-ISM), Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
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29
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Freza S, Anusiewicz I, Simons J, Skurski P. A metastable [(MgF3)2]2− dianion composed of two superhalogen anions. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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30
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Stefanowska-Tur S, Możejko P, Ptasińska-Denga E, Szmytkowski C. Electron collisions with X(CH 3) 4 molecules (X = C, Si, Ge). J Chem Phys 2019; 150:094303. [PMID: 30849877 DOI: 10.1063/1.5086689] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Absolute grand-total cross sections (TCSs) for electron scattering from tetramethylmethane [C(CH3)4], tetramethylsilane [Si(CH3)4], and tetramethylgermane [Ge(CH3)4] molecules have been measured at electron-impact energies extending from around 0.5 to 300 eV in the linear electron-transmission experiment. The measured TCS energy dependences show very pronounced broad enhancement, peaking near 5.5 eV for Si(CH3)4 and Ge(CH3)4 molecules and around 6.5 eV for C(CH3)4. Additional weak structures are also located at higher electron energies. We attributed the TCS features to the resonant processes involved in the electron-molecule scattering. To examine the role of permethylation in the scattering, the measured TCS energy functions for X(CH3)4 compounds (X = C, Si, Ge) have been compared to the TCS curves for XH4 molecules. Additionally, the integral elastic cross section (ECS) and ionization cross section (ICS) have been calculated from intermediate to high electron-impact energies using model methods. At energies above 50 eV, the sum of ECS and ICS for the investigated targets is in satisfactory agreement with the respective measured TCS. The computed ECS+ICS values can be used as rough estimation of TCS at energies above 300 eV.
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Affiliation(s)
- Sylwia Stefanowska-Tur
- Department of Atomic, Molecular and Optical Physics, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Paweł Możejko
- Department of Atomic, Molecular and Optical Physics, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Elżbieta Ptasińska-Denga
- Department of Atomic, Molecular and Optical Physics, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Czesław Szmytkowski
- Department of Atomic, Molecular and Optical Physics, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
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31
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Cyraniak A, Skurski P, Czapla M. The presence of two different central atoms increases the strength of Lewis-Brønsted superacids. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Zhou FQ, Zhao RF, Li JF, Xu WH, Li CC, Luo L, Li JL, Yin B. Constructing organic superacids from superhalogens is a rational route as verified by DFT calculations. Phys Chem Chem Phys 2019; 21:2804-2815. [PMID: 30667421 DOI: 10.1039/c8cp07313a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The construction route of organic superacids from the combination of organic superhalogens and protons is verified to be a rational one based on a systematic theoretical study covering different planar conjugated backbones, e.g., [C5H5]- and [BC5H6]-, and electron-withdrawing substituents, e.g., -F, -CN and -NO2. In both the gas phase and the solution phase, the acidities of the composites here have a consistent strengthening with the increase of the vertical electron detachment energy of the superhalogen part. Decomposition of the acidity into different contributions further verifies the dominant role of the superhalogen part in the variation of the acidity. Thus, tuning of the acidity of systems of this type could be achieved via rational design of the constituent part of the superhalogen. That is to say, the design of a novel organic superacid with enhanced properties could be guided by the search for a new strong superhalogen of organic nature eventually. Having provided important contributions to the topic of superhalogens, theoretical calculation should be trusted to provide useful guidance for the research of organic superacids and could be expected to promote related experimental studies in the near future.
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Affiliation(s)
- Fu-Qiang Zhou
- MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China.
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Tsunoyama H, Akutsu M, Koyasu K, Nakajima A. The stability of binary Al 12X nanoclusters (X = Sc and Ti): superatom or Wade's polyhedron. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:494004. [PMID: 30451157 DOI: 10.1088/1361-648x/aaebde] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Binary nanoclusters (NCs) exhibit strong potential as building blocks for tailor-made scientific materials based on the precise tuning of their electron countings and spin states along with the synergistic effects that originate from the constituent elements. Herein, we studied the electronic and geometric structures of transition metal (TM) doped aluminum (Al) Al12X NCs (X = Sc and Ti), which are binary systems that extend from representative superatom [Formula: see text] anions. On the basis of the photoelectron spectroscopy (PES) and density functional theory (DFT) calculations, Al12X anion and neutral structures are characterized as vertex-replaced icosahedron. The highly stable exohedral Al12X icosahedron is described based on an electron counting rule derived from the coupling of Wade-Mingos' rule and the jellium model.
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Affiliation(s)
- Hironori Tsunoyama
- Faculty of Science and Technology, Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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Czapla M, Ciepła O, Brzeski J, Skurski P. Formation of Enormously Strongly Bound Anionic Clusters Predicted in Binary Superacids. J Phys Chem A 2018; 122:8539-8548. [DOI: 10.1021/acs.jpca.8b07514] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcin Czapla
- Laboratory of Quantum Chemistry, Department of Theoretical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Olimpia Ciepła
- Laboratory of Quantum Chemistry, Department of Theoretical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Jakub Brzeski
- Laboratory of Quantum Chemistry, Department of Theoretical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Piotr Skurski
- Laboratory of Quantum Chemistry, Department of Theoretical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
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Cartoni A, Casavola AR, Bolognesi P, Castrovilli MC, Catone D, Chiarinelli J, Richter R, Avaldi L. Insights into 2- and 4(5)-Nitroimidazole Decomposition into Relevant Ions and Molecules Induced by VUV Ionization. J Phys Chem A 2018; 122:4031-4041. [DOI: 10.1021/acs.jpca.8b01144] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Cartoni
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Area della Ricerca di Roma 1, via Salaria Km 29,300, Monterotondo Scalo (RM), 00016, Italy
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185, Roma, Italy
| | - A. R. Casavola
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Area della Ricerca di Roma 1, via Salaria Km 29,300, Monterotondo Scalo (RM), 00016, Italy
| | - P. Bolognesi
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Area della Ricerca di Roma 1, via Salaria Km 29,300, Monterotondo Scalo (RM), 00016, Italy
| | - M. C. Castrovilli
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Area della Ricerca di Roma 1, via Salaria Km 29,300, Monterotondo Scalo (RM), 00016, Italy
| | - D. Catone
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Area della Ricerca di Roma 2, via del Fosso del Cavaliere 10, 00133, Roma, Italy
| | - J. Chiarinelli
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Area della Ricerca di Roma 1, via Salaria Km 29,300, Monterotondo Scalo (RM), 00016, Italy
| | - R. Richter
- Elettra Sincrotrone Trieste, Area Science
Park, 34149, Basovizza, Trieste, Italy
| | - L. Avaldi
- Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Area della Ricerca di Roma 1, via Salaria Km 29,300, Monterotondo Scalo (RM), 00016, Italy
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Anusiewicz I, Skurski P. Attaching Be or Mg to BH3 results in the formation of BeBH3 and MgBH3 molecules capable of forming stable anions. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.03.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Anusiewicz I, Freza S, Skurski P. Stability of the TinF4n+1− and GenF4n+1− superhalogen anions and the acidity of the HTi F4+1 and HGe F4+1 (n = 1–3) superacids. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.12.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chrostowska A, Darrigan C, Dargelos A, Graciaa A, Guillemin JC. Isoselenocyanates versus Isothiocyanates and Isocyanates. J Phys Chem A 2018; 122:2894-2905. [PMID: 29485878 DOI: 10.1021/acs.jpca.7b12604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Alkyl and aryl isoselenocyanates are well known intermediates in the synthesis of various organoselenium compounds, but the knowledge of the physicochemical properties of simple unsaturated derivatives is still fragmentary. Vinyl-, 2-propenyl-, and cyclopropyl isoselenocyanates have been prepared by reaction of selenium in powder with the corresponding isocyanides. The isoselenocyanates of this series, with a variable distance between the N═C═Se group and the unsaturated or pseudounsaturated group, have been studied by UV-photoelectron spectroscopy and quantum-chemical calculations. For each of these three isoselenocyanates, the exploration of conformers and geometrical optimization always converge toward only one local minimum. The vinyl and cyclopropyl derivatives are characterized by similar order of magnitude of interactions between the NCSe group and the substituent, while for allylic compound two noninteracting moieties should be considered. The same conclusions were obtained for vinylic and cyclopropylic sulfur and oxygen derivatives. Thus the type and extent of interactions between the N═C═X (X = O, S, Se) group and an unsaturated (vinyl, allyl, or cyclopropyl) moiety are now clarified.
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Affiliation(s)
- Anna Chrostowska
- Université de Pau et des Pays de l'Adour, CNRS, UMR 5254 IPREM, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux , 64000 Pau , France
| | - Clovis Darrigan
- Université de Pau et des Pays de l'Adour, CNRS, UMR 5254 IPREM, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux , 64000 Pau , France
| | - Alain Dargelos
- Université de Pau et des Pays de l'Adour, CNRS, UMR 5254 IPREM, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux , 64000 Pau , France
| | - Alain Graciaa
- Université de Pau et des Pays de l'Adour, CNRS TOTAL-UMR 5150-LFC-R , 64000 Pau , France
| | - Jean-Claude Guillemin
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226 , F-35000 Rennes , France
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Liu JY, Li RY, Li Y, Ma HD, Wu D. Superalkali Cations with Trivalent Anion MF63− (M = Al, Ga, Sc) as Central Core. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1363-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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40
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Guo JC, Feng LY, Zhang XY, Zhai HJ. Star-Like CBe5Au5+ Cluster: Planar Pentacoordinate Carbon, Superalkali Cation, and Multifold (π and σ) Aromaticity. J Phys Chem A 2018; 122:1138-1145. [DOI: 10.1021/acs.jpca.7b11789] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin-Chang Guo
- Institute
of Materials Science and Department of Chemistry, Xinzhou Teachers’ University, Xinzhou 034000, Shanxi, China
- Nanocluster
Laboratory, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Lin-Yan Feng
- Nanocluster
Laboratory, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Xiao-Ying Zhang
- Nanocluster
Laboratory, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Hua-Jin Zhai
- Nanocluster
Laboratory, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
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Samanta K, Tsogbayar T, Zhang SB, Yeager DL. Electron–Atom and Electron–Molecule Resonances: Some Theoretical Approaches Using Complex Scaled Multiconfigurational Methods. ADVANCES IN QUANTUM CHEMISTRY 2018. [DOI: 10.1016/bs.aiq.2017.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mazière A, Chrostowska A, Darrigan C, Dargelos A, Graciaa A, Chermette H. Electronic structure of BN-aromatics: Choice of reliable computational tools. J Chem Phys 2017; 147:164306. [PMID: 29096486 DOI: 10.1063/1.4993297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The importance of having reliable calculation tools to interpret and predict the electronic properties of BN-aromatics is directly linked to the growing interest for these very promising new systems in the field of materials science, biomedical research, or energy sustainability. Ionization energy (IE) is one of the most important parameters to approach the electronic structure of molecules. It can be theoretically estimated, but in order to evaluate their persistence and propose the most reliable tools for the evaluation of different electronic properties of existent or only imagined BN-containing compounds, we took as reference experimental values of ionization energies provided by ultra-violet photoelectron spectroscopy (UV-PES) in gas phase-the only technique giving access to the energy levels of filled molecular orbitals. Thus, a set of 21 aromatic molecules containing B-N bonds and B-N-B patterns has been merged for a comparison between experimental IEs obtained by UV-PES and various theoretical approaches for their estimation. Time-Dependent Density Functional Theory (TD-DFT) methods using B3LYP and long-range corrected CAM-B3LYP functionals are used, combined with the ΔSCF approach, and compared with electron propagator theory such as outer valence Green's function (OVGF, P3) and symmetry adapted cluster-configuration interaction ab initio methods. Direct Kohn-Sham estimation and "corrected" Kohn-Sham estimation are also given. The deviation between experimental and theoretical values is computed for each molecule, and a statistical study is performed over the average and the root mean square for the whole set and sub-sets of molecules. It is shown that (i) ΔSCF+TDDFT(CAM-B3LYP), OVGF, and P3 are the most efficient way for a good agreement with UV-PES values, (ii) a CAM-B3LYP range-separated hybrid functional is significantly better than B3LYP for the purpose, especially for extended conjugated systems, and (iii) the "corrected" Kohn-Sham result is a fast and simple way to predict IEs.
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Affiliation(s)
- Audrey Mazière
- Université de Pau et des Pays de l'Adour, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM, UMR CNRS 5254, Avenue de l'Université, 64000 Pau, France
| | - Anna Chrostowska
- Université de Pau et des Pays de l'Adour, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM, UMR CNRS 5254, Avenue de l'Université, 64000 Pau, France
| | - Clovis Darrigan
- Université de Pau et des Pays de l'Adour, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM, UMR CNRS 5254, Avenue de l'Université, 64000 Pau, France
| | - Alain Dargelos
- Université de Pau et des Pays de l'Adour, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM, UMR CNRS 5254, Avenue de l'Université, 64000 Pau, France
| | - Alain Graciaa
- Université de Pau et des Pays de l'Adour, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM, UMR CNRS 5254, Avenue de l'Université, 64000 Pau, France
| | - Henry Chermette
- Université de Lyon, Université Claude Bernard Lyon-1, ENS-Lyon, Institut des Sciences Analytiques, UMR CNRS 5280, 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
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Hirata S, Doran AE, Knowles PJ, Ortiz JV. One-particle many-body Green’s function theory: Algebraic recursive definitions, linked-diagram theorem, irreducible-diagram theorem, and general-order algorithms. J Chem Phys 2017; 147:044108. [DOI: 10.1063/1.4994837] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- So Hirata
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Alexander E. Doran
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Peter J. Knowles
- School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, United Kingdom
| | - J. V. Ortiz
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312, USA
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Wileńska D, Skurski P, Anusiewicz I. Possible Formation of H 3O + Cations Due to Aluminum Fluoride Interactions with Water. J Phys Chem A 2017; 121:4372-4378. [DOI: 10.1021/acs.jpca.7b03056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dorota Wileńska
- Laboratory of Quantum Chemistry, Faculty
of Chemistry, University of Gdańsk Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Piotr Skurski
- Laboratory of Quantum Chemistry, Faculty
of Chemistry, University of Gdańsk Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Iwona Anusiewicz
- Laboratory of Quantum Chemistry, Faculty
of Chemistry, University of Gdańsk Wita Stwosza 63, 80-308 Gdańsk, Poland
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Liu JY, Ma HD, Sun YB, Li Y, Sun WM, Wu D, Li ZR. Hyperhalogen properties of early-transition-metal borates. RSC Adv 2017. [DOI: 10.1039/c7ra10238k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The hyperhalogen character of three series of early-transition-metal borates has been proposed.
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Affiliation(s)
- Jia-Yuan Liu
- Institute of Theoretical Chemistry
- Laboratory of Theoretical and Computational Chemistry
- Jilin University
- Changchun 130023
- China
| | - Hai-Di Ma
- Institute of Theoretical Chemistry
- Laboratory of Theoretical and Computational Chemistry
- Jilin University
- Changchun 130023
- China
| | - Yan-bo Sun
- Institute of Theoretical Chemistry
- Laboratory of Theoretical and Computational Chemistry
- Jilin University
- Changchun 130023
- China
| | - Ying Li
- Institute of Theoretical Chemistry
- Laboratory of Theoretical and Computational Chemistry
- Jilin University
- Changchun 130023
- China
| | - Wei-Ming Sun
- Department of Basic Chemistry
- The School of Pharmacy
- Fujian Medical University
- Fuzhou 350108
- China
| | - Di Wu
- Institute of Theoretical Chemistry
- Laboratory of Theoretical and Computational Chemistry
- Jilin University
- Changchun 130023
- China
| | - Zhi-Ru Li
- Institute of Theoretical Chemistry
- Laboratory of Theoretical and Computational Chemistry
- Jilin University
- Changchun 130023
- China
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Zhao RF, Yu L, Zhou FQ, Li JF, Yin B. Could the increased structural versatility imposed by non-halogen ligands bring something new for polynuclear superhalogens? A case study on binuclear [Mg2L5]− (L = –OH, –OOH and –OF) anions. Phys Chem Chem Phys 2017; 19:26986-26995. [DOI: 10.1039/c7cp05037b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined ab initio and DFT study is performed in this work to explore the superhalogen properties of polynuclear structures based on the ligands of –OH, –OOH and –OF.
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Affiliation(s)
- Ru-Fang Zhao
- MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
| | - Le Yu
- MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
| | - Fu-Qiang Zhou
- MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
| | - Jin-Feng Li
- MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
| | - Bing Yin
- MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- College of Chemistry and Materials Science
- Northwest University
- Xi’an 710069
- China
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49
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The complex-scaled multiconfigurational spin-tensor electron propagator method for low-lying shape resonances in Be−, Mg− and Ca−. Chem Phys 2017. [DOI: 10.1016/j.chemphys.2016.07.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Liu JY, Xi YJ, Li Y, Li SY, Wu D, Li ZR. Does Alkaline-Earth-Metal-Based Superalkali Exist? J Phys Chem A 2016; 120:10281-10288. [DOI: 10.1021/acs.jpca.6b10555] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jia-Yuan Liu
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
| | - Yong-Jie Xi
- Department of Chemistry, National University of Singapore, 117543, Singapore
| | - Ying Li
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
| | - Si-Yi Li
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
| | - Di Wu
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
| | - Zhi-Ru Li
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
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