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Meng L, Liang YY, Mei L, Geng JS, Hu KQ, Yu JP, Wang XP, Fujita T, Chai ZF, Shi WQ. Mixed-Ligand Uranyl Squarate Coordination Polymers: Structure Regulation and Redox Activity. Inorg Chem 2021; 61:302-316. [PMID: 34908402 DOI: 10.1021/acs.inorgchem.1c02872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The electron-rich squarate ion (C4O42-, SA2-) possesses electronic delocalization over the entire molecule and good redox activity, and the functionalization of metal-organic complexes with the SA2- group is desirable. In this work, a mixed-ligand method is used to construct novel uranyl squarate coordination polymers utilizing 4,4'-bipyridine (bpy), 4,4'-bipyridine-N,N'-dioxide (bpydo), 1,10-phenanthroline (phen), 4,4'-vinylenedipyridine (vidpy), and in situ formed oxalate (OA2-) as ancillary ligands. Seven mixed-ligand uranyl compounds, [(UO2)(OH)(SA)](Hbpy) (1), [(UO2)(H2O)(SA)2](H2bpy) (2), (UO2)(H2O)(SA)(bpydo)·2H2O (3), (UO2)(H2O)(SA)(phen)·H2O (4), (UO2)(OH)(SA)0.5(phen)·H2O (5), [(UO2)(SA)(OA)0.5](Hphen) (6), and [(UO2)(SA)(OA)0.5](Hvidpy) (7), with varying crystal structures were synthesized under hydrothermal conditions. Compound 1, together with bpy molecules filling in the interlayer space as template agents, has a two-dimensional (2D) network structure, while 2 gives a one-dimensional (1D) chain based on mononuclear uranium units. Compound 3 shows a neutral 2D network through the combined linkage of SA2- and bpydo. Both 4 and 5 have a similar chain-like structure due to the capping effect of phen motifs, while phen molecules in 6 act as templating agents after protonation. Similar to 6, compound 7 has a "sandwich-like" structure in which the Hvidpy motifs locate in the voids of layers of 2D uranyl-squarate networks. The redox properties of typical mixed-ligand uranyl-squarate compounds, 1, 4, and 5 with high phase purity, are characterized using cyclic voltammetry. All three of these uranyl coordination compounds show anode peaks (Ea) at 0.777, 0.804, and 0.760 V, respectively, which correspond to the oxidation process of SA2- → SA. Meanwhile, cathodic peaks (Ec) at -0.328, -0.315, and -0.323 V corresponding to the reduction process of U(VI) → U(V) are also observed. The results reveal that all three of these uranyl coordination compounds show good redox activity and, most importantly, the interplay between two different redox-active motifs of SA2- organic linker and uranyl node. This work enriches the library of redox-active uranyl compounds and provides a feasible mixed-ligand method for regulating the synthesis of functional actinide compounds.
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Affiliation(s)
- Liao Meng
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yuan-Yuan Liang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Mei
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jun-Shan Geng
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Kong-Qiu Hu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Ji-Pan Yu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xin-Peng Wang
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Toyohisa Fujita
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, 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 Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 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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Brenner N, Sperling JM, Poe TN, Celis-Barros C, Brittain K, Villa EM, Albrecht-Schmitt TE, Polinski MJ. Trivalent f-Element Squarates, Squarate-Oxalates, and Cationic Materials, and the Determination of the Nine-Coordinate Ionic Radius of Cf(III). Inorg Chem 2020; 59:9384-9395. [DOI: 10.1021/acs.inorgchem.0c01254] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Natasha Brenner
- Department of Chemistry and Biochemistry, Bloomsburg University of Pennsylvania, 400 East Second Street, Bloomsburg, Pennsylvania 17815, United States
| | - Joseph M. Sperling
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Todd N. Poe
- Department of Chemistry and Biochemistry, Bloomsburg University of Pennsylvania, 400 East Second Street, Bloomsburg, Pennsylvania 17815, United States
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Cristian Celis-Barros
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Kristi Brittain
- Department of Chemistry and Biochemistry, Bloomsburg University of Pennsylvania, 400 East Second Street, Bloomsburg, Pennsylvania 17815, United States
| | - Eric M. Villa
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, Nebraska 68178, United States
| | - Thomas E. Albrecht-Schmitt
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Matthew J. Polinski
- Department of Chemistry and Biochemistry, Bloomsburg University of Pennsylvania, 400 East Second Street, Bloomsburg, Pennsylvania 17815, United States
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Dickie DA, Kemp RA. Crystal structure of catena-poly[di-ammonium [di-μ-oxalato-cuprate(II)]]. Acta Crystallogr E Crystallogr Commun 2016; 72:1780-1782. [PMID: 27980829 PMCID: PMC5137607 DOI: 10.1107/s2056989016017631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 11/04/2016] [Indexed: 11/10/2022]
Abstract
The structure of the title compound, {(NH4)2[Cu(C2O4)2]} n , at 100 K has monoclinic (P21/c) symmetry with the CuII atom on an inversion center. The compound has a polymeric structure due to long Cu⋯O inter-actions which create [Cu(C2O4)2] chains along the a axis. The structure also displays inter-molecular N-H⋯O hydrogen bonding, which links these chains into a three-dimensional network.
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Affiliation(s)
- Diane A. Dickie
- Department of Chemistry and Chemical Biology, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Richard A. Kemp
- Department of Chemistry and Chemical Biology, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131, USA
- Advanced Materials Laboratory, Sandia National Laboratories, 1001 University Blvd SE, Albuquerque, NM 87106, USA
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Rowland CE, Cahill CL. Hydrothermal Synthesis of Uranyl Squarates and Squarate-Oxalates: Hydrolysis Trends and in Situ Oxalate Formation. Inorg Chem 2010; 49:6716-24. [PMID: 20553028 DOI: 10.1021/ic100887c] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clare E. Rowland
- Contribution from the Department of Chemistry, The George Washington University, 725 21st St. NW, Washington, DC 20052
| | - Christopher L. Cahill
- Contribution from the Department of Chemistry, The George Washington University, 725 21st St. NW, Washington, DC 20052
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