1
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Yang X, Xu L, Fang D, Zhang A, Xiao C. Progress in phenanthroline-derived extractants for trivalent actinides and lanthanides separation: where to next? Chem Commun (Camb) 2024. [PMID: 39235311 DOI: 10.1039/d4cc03810j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
Spent nuclear fuel (SNF) released from reactors possesses significant radioactivity, heat release properties, and high-value radioactive nuclides. Therefore, using chemical methods for reprocessing can enhance economic efficiency and reduce the potential environmental risks of nuclear energy. Due to the presence of relatively diffuse f-electrons, the chemical properties of trivalent lanthanides (Ln(III)) and actinides (An(III)) in SNF solutions are quite similar. Separation methods have several limitations, including poor separation efficiency and the need for multiple stripping agents. The use of novel multi-dental phenanthroline-derived extractants with nitrogen donor atoms to effectively separate An(III) over Ln(III) has been widely accepted. This review first introduces the development history of phenanthroline-derived extractants for extraction and complexation with An(III) over Ln(III). Then, based on structural differences, these extractants are classified into four categories: nitrogen-coordinated, N,O-hybrid coordinated, highly preorganized structure, and unsymmetric structure. Each category's design principles, extraction, and separation performance as well as their advantages and disadvantages are discussed. Finally, we have summarized and compared the unique characteristics of the existing extractants and provided an outlook. This work may offer a reliable reference for the precise identification and selective separation between An(III) and Ln(III), and point the way for future development and exploration.
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Affiliation(s)
- Xiaofan Yang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China.
| | - Lei Xu
- Institute of Nuclear-Agricultural Science, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Dong Fang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China.
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Anyun Zhang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China.
| | - Chengliang Xiao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China.
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
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2
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Erba A, Desmarais JK, Casassa S, Civalleri B, Donà L, Bush IJ, Searle B, Maschio L, Edith-Daga L, Cossard A, Ribaldone C, Ascrizzi E, Marana NL, Flament JP, Kirtman B. CRYSTAL23: A Program for Computational Solid State Physics and Chemistry. J Chem Theory Comput 2023; 19:6891-6932. [PMID: 36502394 PMCID: PMC10601489 DOI: 10.1021/acs.jctc.2c00958] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Indexed: 12/14/2022]
Abstract
The Crystal program for quantum-mechanical simulations of materials has been bridging the realm of molecular quantum chemistry to the realm of solid state physics for many years, since its first public version released back in 1988. This peculiarity stems from the use of atom-centered basis functions within a linear combination of atomic orbitals (LCAO) approach and from the corresponding efficiency in the evaluation of the exact Fock exchange series. In particular, this has led to the implementation of a rich variety of hybrid density functional approximations since 1998. Nowadays, it is acknowledged by a broad community of solid state chemists and physicists that the inclusion of a fraction of Fock exchange in the exchange-correlation potential of the density functional theory is key to a better description of many properties of materials (electronic, magnetic, mechanical, spintronic, lattice-dynamical, etc.). Here, the main developments made to the program in the last five years (i.e., since the previous release, Crystal17) are presented and some of their most noteworthy applications reviewed.
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Affiliation(s)
- Alessandro Erba
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Jacques K. Desmarais
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Silvia Casassa
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Bartolomeo Civalleri
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Lorenzo Donà
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Ian J. Bush
- STFC
Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - Barry Searle
- SFTC
Daresbury Laboratory, Daresbury, Cheshire WA4 4AD, United Kingdom
| | - Lorenzo Maschio
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Loredana Edith-Daga
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Alessandro Cossard
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Chiara Ribaldone
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Eleonora Ascrizzi
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Naiara L. Marana
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Jean-Pierre Flament
- Université
de Lille, CNRS, UMR 8523 — PhLAM — Physique des Lasers, Atomes et Molécules, 59000 Lille, France
| | - Bernard Kirtman
- Department
of Chemistry and Biochemistry, University
of California, Santa
Barbara, California 93106, United States
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3
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Kohout M, Gumeniuk R, Leithe-Jasper A. Chemical Bonding in the Intermetallic Compounds LaBeGe and ThBeGe. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Miroslav Kohout
- Max-Planck-Institut Chemische Physik fester Stoffe CPFS N�thnitzer Stra�e 40 1187 Dresden GERMANY
| | - Roman Gumeniuk
- TU Bergakademie Freiberg: Technische Universitat Bergakademie Freiberg Institut für Experimentelle Physik Leipziger Strasse 23 09596 Freiberg GERMANY
| | - Andreas Leithe-Jasper
- Max-Planck-Institut für Chemische Physik fester Stoffe Chemische Metallkunde Noethnitzer Strasse 40 01187 Dresden GERMANY
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4
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Arabzadeh H, Liu C, Acevedo O, Ren P, Yang W, Albrecht-Schönzart T. Hydration of divalent lanthanides, Sm 2+ and Eu 2+ : A molecular dynamics study with polarizable AMOEBA force field. J Comput Chem 2022; 43:1286-1297. [PMID: 35648124 PMCID: PMC10052752 DOI: 10.1002/jcc.26933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/31/2022] [Accepted: 05/08/2022] [Indexed: 11/06/2022]
Abstract
The chemistry of divalent lanthanides, Ln2+ , is a growing sub-field of heavy element chemistry owing to new synthetic approaches. However, some theoretical aspects of these unusual cations are currently underdeveloped, especially as they relate to their dynamic properties in solution. In this work, we address the hydration of two of the classical Ln2+ cations, Sm2+ and Eu2+ , using atomic multipole optimized energetic for biomolecular applications (AMOEBA) force fields. These cations have not been parameterized to date with AMOEBA, and few studies are available because of their instability with respect to oxidation in aqueous media. Coordination numbers (CN's) of 8.2 and 8.1 respectively for Sm2+ and Eu2+ , and 8.8 for both Sm3+ and Eu3+ have been obtained and are in good agreement with the few available AIMD and X-ray absorption fine structures studies. The decreased CN of Ln2+ compared with Ln3+ arises from progressive water exchange events that indicates the gradual stabilization of 8-coordinate structures with respect to 9-coordinate geometries. Moreover, the effects of the chloride counter anions on the coordination of Ln2+ cations have been studied at different chloride concentrations in this work. Lastly, water exchange times of Ln2+ cations have been calculated to provide a comprehensive understanding of the behavior of Eu2+ and Sm2+ in aqueous chloride media.
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Affiliation(s)
- Hesam Arabzadeh
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Chengwen Liu
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Orlando Acevedo
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, USA
| | - Pengyu Ren
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
| | - Wei Yang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA
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5
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Pietro WJ, Lever ABP. Ligand Electrochemical Parameter Approach to Molecular Design. σ-Donation, π-Back Donation, and Other Metrics in Ruthenium(II) Dinitrogen Complexes. Inorg Chem 2022; 61:1869-1880. [PMID: 35016502 DOI: 10.1021/acs.inorgchem.1c02707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Using the density functional theory, [(N2)RuIIL5]n+ species are studied in silico. The properties of the Ru-N2 bond are derived, including σ-donation, π-back donation, Ru-N and N-N bond lengths and bond orders, net charges and NN stretching frequencies, and so forth. These data are correlated using the ligand electrochemical parameter (EL) theory, whereby the availability of electrons in the [RuL5]n+ fragment is defined by its electron richness, which is the sum of the EL parameters, ΣEL(L5). The objective is to better understand the binding of the N2 ligand, leading to a molecular design whereby a specific species is constructed to have a desired property, for example, a particular bond length or charge. We supply cubic expressions linking ΣEL(L5) with these many metrics, allowing researchers to predict metric values of their own systems. The extended charge decomposition analysis is used. For the given target, N2, σ-bonding does not vary greatly with the nature of ligand L, and π-back donation is the dominant property deciding the magnitudes of the various metrics. The EL parameter provides the path to design the desired species. This contribution is devoted to dinitrogen, but the method is expected to be general for any ligand, including polydentate ligands.
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Affiliation(s)
- William J Pietro
- Department of Chemistry, York University, Toronto, M3J1P3 Ontario, Canada
| | - A B P Lever
- Department of Chemistry, York University, Toronto, M3J1P3 Ontario, Canada
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6
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Gray NAG, Price JS, Emslie DJH. Uranium(IV) Thio- and Selenoether Complexes: Syntheses, Structures, and Computational Investigation of U-ER 2 Interactions. Chemistry 2021; 28:e202103580. [PMID: 34875126 DOI: 10.1002/chem.202103580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Indexed: 11/07/2022]
Abstract
Rigid thioether- and selenoether-containing pincer proligands H[AS2 Ph 2 ] (1) and H[ASe2 Ph 2 ] (2) were synthesized, and deprotonation provided the potassium salts [K(AS2 Ph 2 )(dme)] (3) and [K(ASe2 Ph 2 )(dme)2 ] (4). Reaction of two equivalents of 3 or 4 with [UI4 (dioxane)2 ] afforded the uranium thioether complex [(AS2 Ph 2 )2 UI2 ] (5) and the first example of a uranium-selenoether complex, [(ASe2 Ph 2 )2 UI2 ] (6). X-ray structures revealed distorted square antiprismatic geometries in which the AE2 Ph 2 ligands are κ3 -coordinated. The nature of the U-ER2 bonding in 5 and 6, as well as methyl-free analogues of 5 and 6 and a hypothetical ether analogue, was investigated computationally (including NBO, AIM, and ELF calculations) illustrating increasing covalency from O to S to Se.
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Affiliation(s)
- Novan A G Gray
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada
| | - Jeffrey S Price
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada
| | - David J H Emslie
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada
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7
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Vazquez-Lima H, Conradie J, Johansen MAL, Martinsen SR, Alemayehu AB, Ghosh A. Heavy-element-ligand covalence: ligand noninnocence in molybdenum and tungsten Viking-helmet Corroles. Dalton Trans 2021; 50:12843-12849. [PMID: 34473174 DOI: 10.1039/d1dt01970h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Extensive DFT calculations with several exchange-correlation functionals indicate that molybdenum-dichlorido Viking helmet corroles are noninnocent with significant MoIV-corrole˙2- character. The effect is mediated by a Mo(4d)-corrole(π) orbital interaction similar to that postulated for MnCl, FeCl and FeNO corroles. The effect also appears to operate in tungsten-dichlorido corroles but is weaker relative to that for Mo. In contrast, MoO triarylcorroles do not exhibit a significant degree of corrole radical character. Furthermore, the Soret absorption maxima of a series of MoCl2 tris(para-X-phenyl)corrole derivatives were found to redshift dramatically with increasing electron-donating character of the para substituent X, essentially clinching the case for a noninnocent macrocycle in MoCl2 corroles.
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Affiliation(s)
- Hugo Vazquez-Lima
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway. .,Centro de Química, Instituto de Ciencias, Universidad Autónoma de Puebla, Edif. IC9, CU, San Manuel, 72570 Puebla, Puebla, Mexico
| | - Jeanet Conradie
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway. .,Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Martin A L Johansen
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway.
| | | | - Abraham B Alemayehu
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway.
| | - Abhik Ghosh
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway.
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8
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Celis-Barros C, Albrecht-Schönzart T, Windorff CJ. Computational Investigation of the Bonding in [(η 5–Cp′) 3(η 1–Cp′)M] 1– (M = Pu, U, Ce). Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Cristian Celis-Barros
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, RM. 118 DLC, Tallahassee, Florida 32306, United States
| | - Thomas Albrecht-Schönzart
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, RM. 118 DLC, Tallahassee, Florida 32306, United States
| | - Cory J. Windorff
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, RM. 118 DLC, Tallahassee, Florida 32306, United States
- Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, PO Box 3001, Las Cruces, New Mexico 88003, United States
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9
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Cossard A, Desmarais JK, Casassa S, Gatti C, Erba A. Charge Density Analysis of Actinide Compounds from the Quantum Theory of Atoms in Molecules and Crystals. J Phys Chem Lett 2021; 12:1862-1868. [PMID: 33577336 PMCID: PMC8028320 DOI: 10.1021/acs.jpclett.1c00100] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 02/10/2021] [Indexed: 05/17/2023]
Abstract
The nature of chemical bonding in actinide compounds (molecular complexes and materials) remains elusive in many respects. A thorough analysis of their electron charge distribution can prove decisive in elucidating bonding trends and oxidation states along the series. However, the accurate determination and robust analysis of the charge density of actinide compounds pose several challenges from both experimental and theoretical perspectives. Significant advances have recently been made on the experimental reconstruction and topological analysis of the charge density of actinide materials [Gianopoulos et al. IUCrJ, 2019, 6, 895]. Here, we discuss complementary advances on the theoretical side, which allow for the accurate determination of the charge density of actinide materials from quantum-mechanical simulations in the bulk. In particular, the extension of the Topond software implementing Bader's quantum theory of atoms in molecules and crystals (QTAIMAC) to f- and g-type basis functions is introduced, which allows for an effective study of lanthanides and actinides in the bulk and in vacuo, on the same grounds. Chemical bonding of the tetraphenyl phosphate uranium hexafluoride cocrystal [PPh4+][UF6-] is investigated, whose experimental charge density is available for comparison. Crystal packing effects on the charge density and chemical bonding are quantified and discussed. The methodology presented here allows reproducing all subtle features of the topology of the Laplacian of the experimental charge density. Such a remarkable qualitative and quantitative agreement represents a strong mutual validation of both approaches-experimental and computational-for charge density analysis of actinide compounds.
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Affiliation(s)
- Alessandro Cossard
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Jacques K. Desmarais
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Silvia Casassa
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Carlo Gatti
- CNR-SCITEC,
Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”, via C. Golgi 19, 20133 Milano, Italy
| | - Alessandro Erba
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
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10
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Kloditz R, Radoske T, Schmidt M, Heine T, Stumpf T, Patzschke M. Comprehensive Bonding Analysis of Tetravalent f-Element Complexes of the Type [M(salen)2]. Inorg Chem 2021; 60:2514-2525. [DOI: 10.1021/acs.inorgchem.0c03424] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Roger Kloditz
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Thomas Radoske
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Moritz Schmidt
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Thomas Heine
- Faculty of Chemistry and Food Chemistry, Theoretical Chemistry, Technische Universität Dresden, Bergstraße 66c, 01069 Dresden, Germany
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Permoserstraße 15, 04318 Leipzig, Germany
| | - Thorsten Stumpf
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Michael Patzschke
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
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11
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Cao C, Vernon RE, Schwarz WHE, Li J. Understanding Periodic and Non-periodic Chemistry in Periodic Tables. Front Chem 2021; 8:813. [PMID: 33490030 PMCID: PMC7818537 DOI: 10.3389/fchem.2020.00813] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 08/03/2020] [Indexed: 12/15/2022] Open
Abstract
The chemical elements are the "conserved principles" or "kernels" of chemistry that are retained when substances are altered. Comprehensive overviews of the chemistry of the elements and their compounds are needed in chemical science. To this end, a graphical display of the chemical properties of the elements, in the form of a Periodic Table, is the helpful tool. Such tables have been designed with the aim of either classifying real chemical substances or emphasizing formal and aesthetic concepts. Simplified, artistic, or economic tables are relevant to educational and cultural fields, while practicing chemists profit more from "chemical tables of chemical elements." Such tables should incorporate four aspects: (i) typical valence electron configurations of bonded atoms in chemical compounds (instead of the common but chemically atypical ground states of free atoms in physical vacuum); (ii) at least three basic chemical properties (valence number, size, and energy of the valence shells), their joint variation across the elements showing principal and secondary periodicity; (iii) elements in which the (sp)8, (d)10, and (f)14 valence shells become closed and inert under ambient chemical conditions, thereby determining the "fix-points" of chemical periodicity; (iv) peculiar elements at the top and at the bottom of the Periodic Table. While it is essential that Periodic Tables display important trends in element chemistry we need to keep our eyes open for unexpected chemical behavior in ambient, near ambient, or unusual conditions. The combination of experimental data and theoretical insight supports a more nuanced understanding of complex periodic trends and non-periodic phenomena.
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Affiliation(s)
- Changsu Cao
- Department of Chemistry, Tsinghua University, Beijing, China
| | | | - W. H. Eugen Schwarz
- Department of Chemistry, Tsinghua University, Beijing, China
- Department of Chemistry, University of Siegen, Siegen, Germany
| | - Jun Li
- Department of Chemistry, Tsinghua University, Beijing, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, China
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12
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Moura RT, Carneiro Neto AN, Malta OL, Longo RL. Overlap properties of chemical bonds in generic systems including unusual bonding situations. J Mol Model 2020; 26:301. [PMID: 33057836 DOI: 10.1007/s00894-020-04535-w] [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: 03/29/2020] [Accepted: 09/07/2020] [Indexed: 02/05/2023]
Abstract
Chemical bond is a ubiquitous and fundamental concept in chemistry, in which the overlap plays a defining role. By using a new approach based on localized molecular orbitals, the overlap properties, e.g., polarizability [Formula: see text], population pOP, intra [Formula: see text], and inter [Formula: see text] repulsions, and density ρOP, of polyatomic systems were calculated, analyzed, and correlated. Several trends are shown for these properties, which are rationalized by the balance of some well-known effects, such as, electron donor/withdrawing character and electronegativity. The overlap properties of unusual bonds are also analyzed, revealing an OZn4(OOCH)6 structure with four equivalent Zn-O chemical bonds with overlap properties like the O-O bond in H2O2, while in protonated methane [Formula: see text], it is observed that a CH3⋯[Formula: see text] bond pattern at the equilibrium structure changes to a [Formula: see text]⋯H2 pattern upon dissociation. Charge-shift resonance energies, atom-in-molecule properties, and the lone-pair-bond-weakening effects are related to the overlap properties, which can provide alternative views and insights into chemical bonds. Graphical abstract A chemical bond analysis approach based on its overlap properties is presented for the first time. The model was applied directly to 25 diatomics and for 28 bonds in polytomics employing localized molecular orbitals. Correlations of the overlap properties with the charge-shift resonance energies and with atom-in-molecule (AIM) properties were uncovered. In addition, it provided insights into the Zn-O bonds in the unusual OZn4(OOCH)6 system as well as in the bonding patterns of [Formula: see text] at equilibrium and upon dissociation.
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Affiliation(s)
- Renaldo T Moura
- Department of Chemistry and Physics, Federal University of Paraíba, Areia, 58397-000, Brazil.
| | - Albano N Carneiro Neto
- Physics Department and CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Oscar L Malta
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, 50740-560, Brazil
| | - Ricardo L Longo
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, 50740-560, Brazil.
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13
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Pace KA, Klepov VV, Deason TK, Smith MD, Ayer GB, Diprete DP, Amoroso JW, Zur Loye HC. Expansion of the Na 3 M III (Ln/An) 6 F 30 Series: Incorporation of Plutonium into a Highly Robust and Stable Framework. Chemistry 2020; 26:12941-12944. [PMID: 32648975 DOI: 10.1002/chem.202002774] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Indexed: 12/12/2022]
Abstract
Nan MAn6 F30 is an extremely versatile framework structure for incorporating tetravalent actinides (An) and cerium along with divalent or trivalent d-metals (M); moreover, the structure exhibits a high resistance to harsh chemical conditions. This extreme robustness can potentially be exploited for the sequestration of plutonium in a stable matrix; however, no Nan MPu6 F30 compounds have been reported so far. Herein, we present four new plutonium fluorides that have been prepared as single crystals by mild hydrothermal synthesis methods. Structural characterizations revealed their compositions to be Na3 AlPu6 F30 , Na3 FePu6 F30 , Na3 CoPu6 F30 , and Na2.4 Mn1.6 Pu6 F30 . Surprisingly, in the plutonium series, it was found that Co2+ and Mn2+ precursors oxidized to form Na3 CoIII Pu6 F30 and Na2.4 MnII/III 1.6 Pu6 F30 , whereas the analogous reactions for cerium result in reduction of the transition metal, even when beginning with a M3+ precursor. While cerium is often used as a surrogate for plutonium, this work serves as an example that deviations between their chemistries do occur.
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Affiliation(s)
- Kristen A Pace
- Center for Hierarchical Waste form Materials, Columbia, SC, 29208, USA.,Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Vladislav V Klepov
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | | | - Mark D Smith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Gyanendra B Ayer
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - David P Diprete
- Center for Hierarchical Waste form Materials, Columbia, SC, 29208, USA.,Savannah River National Laboratory, Aiken, SC, 29803, USA
| | - Jake W Amoroso
- Center for Hierarchical Waste form Materials, Columbia, SC, 29208, USA.,Savannah River National Laboratory, Aiken, SC, 29803, USA
| | - Hans-Conrad Zur Loye
- Center for Hierarchical Waste form Materials, Columbia, SC, 29208, USA.,Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
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14
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Huang PW, Wang CZ, Wu QY, Lan JH, Chai ZF, Shi WQ. Quantum chemical studies of selective back-extraction of Am(III) from Eu(III) and Cm(III) with two hydrophilic 1,10-phenanthroline-2,9-bis-triazolyl ligands. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2019-3197] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
We theoretically investigated the selective back-extraction towards Am(III) over Eu(III) and Cm(III) with two water-soluble 2,9-bis-triazolyl-1,10-phenanthroline derivatives BTrzPhen1 (with two ethanol side chains) and BTrz-Phen2 (with two 1,2-butanediol side chains) by density functional theory (DFT). The molecular geometries and formation reactions of the metal-ligand complexes were modeled by using M(BTrzPhen)(NO3)3 and [M(BTrzPhen)2(NO3)]2+. Am(III) selectivity over Eu(III) and Cm(III) with BTrzPhen2 was successfully reproduced by back-extraction reaction free energy analysis. Moreover, bonding properties between the metal cations and coordinated ligands (model complexes) were studied in terms of Mayer bond order and quantum theory of atoms in molecule (QTAIM). The difference in covalency between An–N and Eu–N bonds were found to be the key factors for Am(III)/Eu(III) separation, while the Am(III) selectivity over Cm(III) of BTrzPhen2 might be attributed to the competition of donor atoms for cation binding preference toward Am(III) and Cm(III).
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Affiliation(s)
- Pin-Wen Huang
- Zhejiang University of Water Resources and Electric Power , Hangzhou, Zhejiang 310018 , China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry , Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049 , China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry , Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049 , China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry , Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049 , China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry , Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049 , China
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology , Chinese Academy of Sciences , Ningbo, Zhejiang 315201 , China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry , Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049 , China
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Berryman VEJ, Whalley ZJ, Shephard JJ, Ochiai T, Price AN, Arnold PL, Parsons S, Kaltsoyannis N. Computational analysis of M–O covalency in M(OC6H5)4 (M = Ti, Zr, Hf, Ce, Th, U). Dalton Trans 2019; 48:2939-2947. [DOI: 10.1039/c8dt05094e] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Trends in covalency of structurally analogous d and f element compounds are explored over changes in the M–O bond distance.
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Affiliation(s)
| | - Zoë J. Whalley
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | - Jacob J. Shephard
- EaStCHEM School of Chemistry
- University of Edinburgh The King's Buildings
- Edinburgh
- UK
| | - Tatsumi Ochiai
- EaStCHEM School of Chemistry
- University of Edinburgh The King's Buildings
- Edinburgh
- UK
| | - Amy N. Price
- EaStCHEM School of Chemistry
- University of Edinburgh The King's Buildings
- Edinburgh
- UK
| | - Polly L. Arnold
- EaStCHEM School of Chemistry
- University of Edinburgh The King's Buildings
- Edinburgh
- UK
| | - Simon Parsons
- EaStCHEM School of Chemistry
- University of Edinburgh The King's Buildings
- Edinburgh
- UK
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16
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Biswas S, Ma S, Nuzzo S, Twamley B, Russell AT, Platts JA, Hartl F, Baker RJ. Structural Variability of 4f and 5f Thiocyanate Complexes and Dissociation of Uranium(III)–Thiocyanate Bonds with Increased Ionicity. Inorg Chem 2017; 56:14426-14437. [DOI: 10.1021/acs.inorgchem.7b01560] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Saptarshi Biswas
- School of Chemistry, University of Dublin, Trinity College, Dublin 2, Ireland
| | - Shuwen Ma
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Stefano Nuzzo
- School of Chemistry, University of Dublin, Trinity College, Dublin 2, Ireland
| | - Brendan Twamley
- School of Chemistry, University of Dublin, Trinity College, Dublin 2, Ireland
| | - Andrew T. Russell
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - James A. Platts
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - František Hartl
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Robert J. Baker
- School of Chemistry, University of Dublin, Trinity College, Dublin 2, Ireland
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