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Zhao R, Mei L, Hu KQ, Wang L, Chai ZF, Shi WQ. Two Three-Dimensional Actinide-Silver Heterometallic Coordination Polymers Based on 2,2′-Bipyridine-3,3′-dicarboxylic Acid with Helical Chains Containing Dimeric or Trimeric Motifs. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601369] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ran Zhao
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing China
| | - Lei Mei
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing China
| | - Kong-qiu Hu
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing China
| | - Lin Wang
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing China
| | - Zhi-fang Chai
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing China
- School of Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions; Soochow University; 215123 Suzhou China
| | - Wei-qun Shi
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety; Institute of High Energy Physics; Chinese Academy of Sciences; 100049 Beijing China
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Abstract
The developments in crystallography, since it was first covered in Science Progress in 1917, following the formulation of the Bragg equation, are described. The advances in instrumentation and data analysis, coupled with the application of computational methods to data analysis, have enabled the solution of molecular structures from the simplest binary systems to the most complex of biological structures. These developments are shown to have had major impacts in the development of chemical bonding theory and in offering an increasing understanding of enzyme-substrate interactions. The advent of synchrotron radiation sources has opened a new chapter in this multi-disciplinary field of science.
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Affiliation(s)
- Terence J. Kemp
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
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Wilkerson MP, Burns CJ, Morris DE, Paine RT, Scott BL. Steric control of substituted phenoxide ligands on product structures of uranyl aryloxide complexes. Inorg Chem 2002; 41:3110-20. [PMID: 12054989 DOI: 10.1021/ic011080q] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of uranyl aryloxide complexes has been prepared via metathesis reactions between [UO(2)Cl(2)(THF)(2)](2) and di-ortho-substituted phenoxides. Reaction of 4 equiv of KO-2,6-(t)()Bu(2)C(6)H(3) with [UO(2)Cl(2)(THF)(2)](2) in THF produces the dark red uranyl compound, UO(2)(O-2,6-(t)()Bu(2)C(6)H(3))(2)(THF)(2).THF, 1. Single-crystal X-ray diffraction analysis of 1 reveals a monomer in which the uranium is coordinated in a pseudooctahedral fashion by two apical oxo groups, two cis-aryloxides, and two THF ligands. A similar product is prepared by reaction of KO-2,6-Ph(2)C(6)H(3) with [UO(2)Cl(2)(THF)(2)](2) in THF. Single-crystal X-ray diffraction analysis of this compound reveals it to be the trans-monomer UO(2)(O-2,6-Ph(2)C(6)H(3))(2)(THF)(2), 2. Dimeric structures result from the reactions of [UO(2)Cl(2)(THF)(2)](2) with less sterically imposing aryloxide salts, KO-2,6-Cl(2)C(6)H(3) or KO-2,6-Me(2)C(6)H(3). Single-crystal X-ray diffraction analyses of [UO(2)(O-2,6-Cl(2)C(6)H(3))(2)(THF)(2)](2), 3, and [UO(2)Cl(O-2,6-Me(2)C(6)H(3))(THF)(2)](2), 4, reveal similar structures in which each U atom is coordinated by seven ligands in a pseudopentagonal bipyramidal fashion. Coordinated to each uranium are two apical oxo groups and five equatorial ligands (3, one terminal phenoxide, two bridging phenoxides, and two nonadjacent terminal THF ligands; 4, one terminal chloride, two bridging phenoxides, and two nonadjacent terminal THF ligands). Apparently, the phenoxide ligand steric features exert a greater influence on the solid-state structures than the electronic properties of the substituents. Emission spectroscopy has been utilized to investigate the molecularity and electronic structure of these compounds. For example, luminescence spectra taken at liquid nitrogen temperature allow for a determination of the dependence of the molecular aggregation of 3 on the molecular concentration. Electronic and vibrational spectroscopic measurements have been analyzed to examine trends in emission energies and stretching frequencies. However, comparison of the data for compounds 1-4 reveals that the innate electron-donating capacity of phenoxide ligands is only subtly manifest in either the electronic or vibrational energy distributions within these molecules.
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Affiliation(s)
- Marianne P Wilkerson
- The Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Jiang J, Sarsfield MJ, Renshaw JC, Livens FR, Collison D, Charnock JM, Helliwell M, Eccles H. Synthesis and characterization of uranyl compounds with iminodiacetate and oxydiacetate displaying variable denticity. Inorg Chem 2002; 41:2799-806. [PMID: 12005506 DOI: 10.1021/ic020121v] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Eight uranyl compounds containing the dicarboxylate ligands iminodiacetate (IDA) or oxydiacetate (ODA) have been characterized in the solid state. The published polymeric structures for [UO(2)(C(4)H(6)NO(4))(2)] and [UO(2)(C(4)H(4)O(5))](n) have been confirmed, while Ba[UO(2)(C(4)H(5)NO(4))(2)] x 3H(2)O, [(CH(3))(2)NH(CH(2))(2)NH(CH(3))(2)][UO(2)(C(4)H(4)O(5))(2)] [orthorhombic space group Pnma, a = 10.996(5) A, b = 21.42(1) A, c = 8.700(3) A, Z = 4], and [C(2)H(5)NH(2)(CH(2))(2)NH(2)C(2)H(5)][UO(2)(C(4)H(4)O(5))(2)] [monoclinic space group P2(1)/n, a = 6.857(3) A, b = 9.209(5) A, c = 16.410(7) A, beta = 91.69(3), Z = 2] contain monomeric anions. The distance from the uranium atom to the central heteroatom (O or N) in the ligand varies. Crystallographic study shows that U-heteroatom (O/N) distances fall into two groups, one 2.6-2.7 A in length and one 3.1-3.2 A, the latter implying no bonding interaction. By contrast, EXAFS analysis of bulk samples suggests that either a long U-heteroatom (O/N) distance (2.9 A) or a range of distances may be present. Three possible structural types, two symmetric and one asymmetric, are identified on the basis of these results and on solid-state (13)C NMR spectroscopy. The two ligands in the complex can be 1,4,7-tridentate, giving five-membered rings, or 1,7-bidentate, to form an eight-membered ring. (C(4)H(12)N(2))[(UO(2))(2)(C(4)H(5)NO(4))(2)(OH)(2)] x 8H(2)O [monoclinic space group P2(1)/a, a = 7.955(9) A, b = 24.050(8) A, c = 8.223(6) A, beta = 112.24(6), Z = 2], (C(2)H(10)N(2))[(UO(2))(2)(C(4)H(5)NO(4))(2)(OH)(2)] x 4H(2)O, and (C(6)H(13)N(4))(2)[(UO(2))(2)(C(4)H(4)O(5))(2)(OH)(2)] x 2H(2)O [monoclinic space group C2/m, a = 19.024(9) A, b = 7.462(4) A, c = 2.467(6) A, beta = 107.75(4), Z = 4] have a dimeric structure with two capping tridentate ligands and two mu(2)-hydroxo bridges, giving edge-sharing pentagonal bipyramids.
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Affiliation(s)
- J Jiang
- Department of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
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Clark DL, Conradson SD, Donohoe RJ, Keogh DW, Morris DE, Palmer PD, Rogers RD, Tait CD. Chemical Speciation of the Uranyl Ion under Highly Alkaline Conditions. Synthesis, Structures, and Oxo Ligand Exchange Dynamics. Inorg Chem 1999. [DOI: 10.1021/ic981137h] [Citation(s) in RCA: 247] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David L. Clark
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
| | - Steven D. Conradson
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
| | - Robert J. Donohoe
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
| | - D. Webster Keogh
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
| | - David E. Morris
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
| | - Phillip D. Palmer
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
| | - Robin D. Rogers
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
| | - C. Drew Tait
- Chemical Science and Technology Division, Nuclear Materials Technology Division, Materials Science and Technology Division, and the G. T. Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, and Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487
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