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Vorobyova AA, Lyssenko KA, Chistyakov GD, Morozov IV, Ovchenkov YA, Vasilchikova TM, Koo HJ, Whangbo MH, Volkova OS, Vasiliev AN. A combination of organic and inorganic cations in the synthesis of transition metal nitrates: preparation and characterization of canted rectangular Ising antiferromagnet (PyH)CsCo 2(NO 3) 6. Dalton Trans 2023; 52:18010-18017. [PMID: 37986576 DOI: 10.1039/d3dt03159d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Pyridinium cesium cobalt nitrate, (PyH)CsCo2(NO3)6, obtained from a nitric acid solution crystallizes in the orthorhombic space group Pnma with unit cell parameters a = 8.6905(14) Å, b = 11.9599(18) Å, c = 18.386(3) Å, V = 1911.0(5) Å3, and Z = 4. It consists of [Co(NO3)3]- layers, in which each Co2+ ion is connected with four monodentate bridging NO3-groups and one bidentate terminal NO3-group, forming a corrugated rectangular net. Magnetization and specific heat measurements show that (PyH)CsCo2(NO3)6 undergoes a long-range canted antiferromagnetic ordering in two steps at TC1 = 5.0 K and TC2 = 2.6 K. The temperature dependence of the magnetic susceptibility and the field dependence of the magnetization measured for (PyH)CsCo2(NO3)6 show that it is an Ising antiferromagnet. In support of these observations, our DFT + U + SOC calculations show that the Co2+ ions of (PyH)CsCo2(NO3)6 have an easy-axis magnetic anisotropy with preferred spin orientation along the b-axis. To a first approximation, the spin lattice of (PyH)CsCo2(NO3)6 is a weakly alternating Ising antiferromagnetic chain (J1/J2 ∼ 0.85), and these chains interact weakly (J3/J2 ∼ 0.07) to form a rectangular Ising antiferromagnetic lattice. In agreement with the prediction for a rectangular Ising antiferromagnet by Onsager, (PyH)CsCo2(NO3)6 undergoes a long-range antiferromagnetic ordering.
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Affiliation(s)
- A A Vorobyova
- National University of Science and Technology "MISiS", Moscow 119049, Russia
| | - K A Lyssenko
- Lomonosov Moscow State University, Moscow 119991, Russia
| | - G D Chistyakov
- Lomonosov Moscow State University, Moscow 119991, Russia
| | - I V Morozov
- National University of Science and Technology "MISiS", Moscow 119049, Russia
- Lomonosov Moscow State University, Moscow 119991, Russia
| | - Y A Ovchenkov
- National University of Science and Technology "MISiS", Moscow 119049, Russia
- Lomonosov Moscow State University, Moscow 119991, Russia
| | - T M Vasilchikova
- National University of Science and Technology "MISiS", Moscow 119049, Russia
- Lomonosov Moscow State University, Moscow 119991, Russia
| | - H-J Koo
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
| | - M-H Whangbo
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA
- Department of Chemistry and Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
| | - O S Volkova
- National University of Science and Technology "MISiS", Moscow 119049, Russia
| | - A N Vasiliev
- National University of Science and Technology "MISiS", Moscow 119049, Russia
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George J, Salcedo R, Greenberg R, Elshendidi H, McGregor D, Burton-Pye B, Francesconi LC, Paulenova A, Gelis AV, Poineau F. Structural Investigation of Technetium Dibutylphosphate Species Using X-ray Absorption Fine Structure Spectroscopy. Inorg Chem 2023; 62:16378-16387. [PMID: 37751567 DOI: 10.1021/acs.inorgchem.3c02010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
The speciation of Tc after the extraction of Tc(IV) from H2O and 1 M HNO3 by dibutylphosphoric acid (HDBP) in dodecane has been studied by X-ray absorption fine structure (XAFS) spectroscopy. Results show the formation of dimeric species with Tc2O2 and Tc2O units, and the formulas [Tc2O2(DBP·HDBP)4] (1) and [Tc2O(NO3)2(DBP)2(DBP·HDBP)2] (2) were, respectively, proposed for the species extracted from H2O and 1 M HNO3. The interatomic Tc-Tc distances found in the Tc2O2 and Tc2O units [2.55(3) and 3.57(4) Å, respectively] are similar to the ones found in Tc(IV) dinuclear species. It is likely that the speciation of Tc(IV) in dodecane is due to the extraction of a species with a Tc2O unit for (2) and to the redissolution of a Tc(IV)-DBP solid for (1). The XAFS results for (1) and (2) were compared to that obtained for the extraction of Tc(IV) with TBP/HDBP/dodecane from 0.5 M HNO3, (3) which highlight the formation of Tc mononuclear nitrate species {i.e., [Tc(NO3)3(DBP)] or [Tc(NO3)2(DBP·HDBP)]}. These results confirm the importance of the preparation and speciation of the Tc(IV) aqueous solutions prior to extraction and how much this influences and drives the final Tc speciation in organic extraction. These studies outline the complexity of Tc separation chemistry and provide insights into the behavior of Tc during the reprocessing of used nuclear fuel.
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Affiliation(s)
- Jonathan George
- Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S.Maryland Parkway, Las Vegas, Nevada 89154, United States
| | - Ramsey Salcedo
- Ph.D. Program in Chemistry, Graduate Center of the City University of New York, New York, New York 10016, United States
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
- Lehman College of the City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468, United States
| | - Rachel Greenberg
- Ph.D. Program in Chemistry, Graduate Center of the City University of New York, New York, New York 10016, United States
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
- Lehman College of the City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468, United States
| | - Hossam Elshendidi
- Ph.D. Program in Chemistry, Graduate Center of the City University of New York, New York, New York 10016, United States
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
- Lehman College of the City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468, United States
| | - Donna McGregor
- Ph.D. Program in Chemistry, Graduate Center of the City University of New York, New York, New York 10016, United States
- Lehman College of the City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468, United States
| | - Benjamin Burton-Pye
- Ph.D. Program in Chemistry, Graduate Center of the City University of New York, New York, New York 10016, United States
- Lehman College of the City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468, United States
| | - Lynn C Francesconi
- Ph.D. Program in Chemistry, Graduate Center of the City University of New York, New York, New York 10016, United States
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
| | - Alena Paulenova
- Department of Nuclear Engineering and Radiation Health Physics, 100 Radiation Center, Oregon State University, Corvallis, Oregon 97331-5903, United States
| | - Artem V Gelis
- Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S.Maryland Parkway, Las Vegas, Nevada 89154, United States
| | - Frederic Poineau
- Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S.Maryland Parkway, Las Vegas, Nevada 89154, United States
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Watanabe E, Kasamatsu Y, Yokokita T, Hayami S, Tonai K, Ninomiya H, Kondo N, Shigekawa Y, Haba H, Kitagawa Y, Nakano M, Shinohara A. Anion-exchange Experiment of Zr, Hf, and Th in HNO3 and Quantum Chemical Study on the Nitrate Complexes toward Chemical Research on Element 104, Rf. SOLVENT EXTRACTION AND ION EXCHANGE 2021. [DOI: 10.1080/07366299.2021.2020956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Eisuke Watanabe
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | | | - Takuya Yokokita
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - Sho Hayami
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Katsuma Tonai
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Hidemi Ninomiya
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Narumi Kondo
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Yudai Shigekawa
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - Hiromitsu Haba
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - Yasutaka Kitagawa
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Masayoshi Nakano
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
- Institute for Molecular Science, Okazaki, Aichi, Japan
| | - Atsushi Shinohara
- Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
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Vorobyova AA, Shilov AI, Boltalin AI, Troyanov SI, Morozov IV. Synthesis and crystal structure of the pyridinium acid nitrate [(PyH)2(NO3)][H2(NO3)3] containing a dihydrogen trinitrate anion. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.05.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Morozov IV, Palamarchuk DM, Kozlovsky VF, Troyanov SI. Synthesis and crystal structure of oxonitrate complexes Cs[VO2(NO3)2], Cs[MoO2(NO3)3], and MoO2(NO3)2. CRYSTALLOGR REP+ 2010. [DOI: 10.1134/s1063774510030053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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