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Watanabe E, Nakajima T, Shinohara A, Kasamatsu Y. Hydration Structure of 102No 2+: A Density Functional Theory-Molecular Dynamics Study. J Phys Chem A 2024; 128:2717-2726. [PMID: 38563068 DOI: 10.1021/acs.jpca.3c08063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The hydration structure of No2+, the divalent cation of nobelium in water, was investigated by ab initio molecular dynamics (MD) simulations. First, a series of benchmark calculations were performed to validate the density functional theory (DFT) calculation methods for a molecule containing a No atom. The DFT-MD simulation of the hydration structure of No2+ was conducted after the MD method was validated by simulating the hydration structures of Ca2+ and Sr2+, whose behavior was previously reported to be similar to that of No2+. The model cluster containing M2+ (M = Ca, Sr, or No) and 32 water molecules was used for DFT-MD simulation. The results showed that the hydration distance of No2+ was intermediate between those of Ca2+ and Sr2+. This trend in the hydration distance is in good agreement with the elution position trend obtained in a previous radiochemical experiment. The calculated No-O bond lengths in the optimized structure of [No(H2O)8]2+ was 2.59 Å, while the average No-O bond length of [No(H2O)8]2+ in water by DFT-MD was 2.55 Å. This difference implies the importance of dynamic solvent effects, considering the second (and further) coordination sphere in the theoretical calculation of solution chemistry for superheavy elements.
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Affiliation(s)
- Eisuke Watanabe
- Graduate School of Science, Osaka University, Machikaneyamacho 1-1, Toyonaka, Osaka 560-0043, Japan
- Nishina Accelerator-based Science Center, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Takahito Nakajima
- Center for Computational Science, RIKEN, Minatojimaminamimachi 7-1-26, Kobe, Hyogo 650-0047, Japan
| | - Atsushi Shinohara
- Institute for Radiation Sciences, Osaka University, Yamadaoka 2-4, Suita 565-0871, Japan
- Osaka Aoyama University, Niina 2-11-1, Minoh, Osaka 562-8580, Japan
| | - Yoshitaka Kasamatsu
- Graduate School of Science, Osaka University, Machikaneyamacho 1-1, Toyonaka, Osaka 560-0043, Japan
- Nishina Accelerator-based Science Center, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
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Manju, Jain M, Madas S, Vashishtha P, Rajput P, Gupta G, Kahaly MU, Özdoğan K, Vij A, Thakur A. Oxygen vacancies induced photoluminescence in [Formula: see text] nanophosphors probed by theoretical and experimental analysis. Sci Rep 2020; 10:17364. [PMID: 33060718 PMCID: PMC7567121 DOI: 10.1038/s41598-020-74436-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 09/16/2020] [Indexed: 11/22/2022] Open
Abstract
We report, for the first time, the influence of oxygen vacancies on band structure and local electronic structure of [Formula: see text] (SZO) nanophosphors by combined first principle calculations based on density functional theory and full multiple scattering theory, correlated with experimental results obtained from X-ray absorption and photoluminescence spectroscopies. The band structure analysis from density functional theory revealed the formation of new energy states in the forbidden gap due to introduction of oxygen vacancies in the system, thereby causing disruption in intrinsic symmetry and altering bond lengths in SZO system. These defect states are anticipated as origin of observed photoluminescence in SZO nanophosphors. The experimental X-ray absorption near edge structure (XANES) at Zn and Sr K-edges were successfully imitated by simulated XANES obtained after removing oxygen atoms around Zn and Sr cores, which affirmed the presence and signature of oxygen vacancies on near edge structure.
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Affiliation(s)
- Manju
- Advanced Materials Research Lab, Department of Basic and Applied Sciences, Punjabi University Patiala, Patiala, Punjab 147 002 India
- Department of Physics, Punjabi University Patiala, Patiala, Punjab 147 002 India
| | - Megha Jain
- Advanced Materials Research Lab, Department of Basic and Applied Sciences, Punjabi University Patiala, Patiala, Punjab 147 002 India
- Department of Physics, Punjabi University Patiala, Patiala, Punjab 147 002 India
| | - Saibabu Madas
- ELI-ALPS, ELI-HU Non-Profit Ltd., Wolfgang Sandner utca 3., H-6728 Szeged, Hungary
- Institute of Physics, University of Szeged, Dóm tér 9, 6720 Szeged, Hungary
| | - Pargam Vashishtha
- Sensor Devices and Metrology Group, CSIR-National Physical Laboratory (CSIR-NPL), Dr. K. S. Krishnan Road, New Delhi, 110 012 India
- Academy of Scientific and Innovative Research, (AcSIR), CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201 002 India
| | - Parasmani Rajput
- Atomic and Molecular Physics Division, Bhabha Atomic Research Center, Trombay, Mumbai, 400 085 India
| | - Govind Gupta
- Sensor Devices and Metrology Group, CSIR-National Physical Laboratory (CSIR-NPL), Dr. K. S. Krishnan Road, New Delhi, 110 012 India
| | - Mousumi Upadhyay Kahaly
- ELI-ALPS, ELI-HU Non-Profit Ltd., Wolfgang Sandner utca 3., H-6728 Szeged, Hungary
- Institute of Physics, University of Szeged, Dóm tér 9, 6720 Szeged, Hungary
| | - Kemal Özdoğan
- Department of Physics, Yildiz Technical University, 34210 Istanbul, Turkey
| | - Ankush Vij
- Nanophosphors Lab, Department of Physics, Amity University Haryana, Gurgaon, Haryana 122 413 India
- Department of Physics, University of Petroleum and Energy Studies, Dehradun, Uttarakhand 248 007 India
| | - Anup Thakur
- Advanced Materials Research Lab, Department of Basic and Applied Sciences, Punjabi University Patiala, Patiala, Punjab 147 002 India
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Yamanaka K, Kawakami M, Kameda Y, Nagasawa A. Structure of Water and Silica in Ion Exchange Resins. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Koji Yamanaka
- R & D Center, Organo Corporation, 4-4-1 Nishionuma, Minami-ku, Sagamihara-city, Kanagawa 252-0332, Japan
| | - Masayuki Kawakami
- R & D Center, Organo Corporation, 4-4-1 Nishionuma, Minami-ku, Sagamihara-city, Kanagawa 252-0332, Japan
| | - Yasuo Kameda
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata 990-8560, Japan
| | - Akira Nagasawa
- Department of Chemistry, Faculty of Science, Saitama University, 255 Shimo-Okubo, Urawa 338-8570, Japan
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4
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Harada M, Okada T, Nakamura K, Saito S, Shibukawa M. Facilitated Dehydration of Rb
+
Ions in Cation‐Exchange Resin when Surrounded by Cs
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Ions: A Marked Phenomenon in Superheated Water. ChemistrySelect 2019. [DOI: 10.1002/slct.201900388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Makoto Harada
- Department of ChemistryTokyo Institute of Technology, Meguro-ku Tokyo 152–8551 Japan
| | - Tetsuo Okada
- Department of ChemistryTokyo Institute of Technology, Meguro-ku Tokyo 152–8551 Japan
| | - Keisuke Nakamura
- Graduate School of Science and TechnologySaitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570 Japan
| | - Shingo Saito
- Graduate School of Science and TechnologySaitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570 Japan
| | - Masami Shibukawa
- Graduate School of Science and TechnologySaitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570 Japan
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Affiliation(s)
| | - Ryota MORINAGA
- Graduate School of Science and Technology, Saitama University
| | - Shingo SAITO
- Graduate School of Science and Technology, Saitama University
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YUCHI A. Diverse Secondary Interactions between Ions Exchanged into the Resin Phase and Their Analytical Applications. ANAL SCI 2014; 30:51-7. [DOI: 10.2116/analsci.30.51] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Akio YUCHI
- Graduate School of Engineering, Nagoya Institute of Technology
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7
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Shibukawa M, Harada M, Okada T, Ogiyama Y, Shimasaki T, Kondo Y, Inoue A, Saito S. X-Ray absorption fine structure spectroscopy studies of thermal effects on ion-exchange equilibria. RSC Adv 2012. [DOI: 10.1039/c2ra21278a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Watanabe Y, Ohnaka K, Fujita S, Kishi M, Yuchi A. Effects of the Spaces Available for Cations in Strongly Acidic Cation-Exchange Resins on the Exchange Equilibria by Quaternary Ammonium Ions and on the Hydration States of Metal Ions. Anal Chem 2011; 83:7480-5. [DOI: 10.1021/ac201692b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuuya Watanabe
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Kenji Ohnaka
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Saki Fujita
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Midori Kishi
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Akio Yuchi
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
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9
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Coupled Acoustic-Gravity Field for Dynamic Evaluation of Ion Exchange with a Single Resin Bead. Anal Chem 2010; 82:4472-8. [DOI: 10.1021/ac100275p] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Shibukawa M, Shimasaki T, Saito S, Yarita T. Superheated Water Ion-Exchange Chromatography: An Experimental Approach for Interpretation of Separation Selectivity in Ion-Exchange Processes. Anal Chem 2009; 81:8025-32. [DOI: 10.1021/ac9011864] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masami Shibukawa
- Graduate School of Science and Technology, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570, Japan, and National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 3, Umezono, Tsukuba, 305-8563, Japan
| | - Tomomi Shimasaki
- Graduate School of Science and Technology, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570, Japan, and National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 3, Umezono, Tsukuba, 305-8563, Japan
| | - Shingo Saito
- Graduate School of Science and Technology, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570, Japan, and National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 3, Umezono, Tsukuba, 305-8563, Japan
| | - Takashi Yarita
- Graduate School of Science and Technology, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570, Japan, and National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 3, Umezono, Tsukuba, 305-8563, Japan
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Okada T, Harada M, Ohki T. Hydration of ions in confined spaces and ion recognition selectivity. ANAL SCI 2009; 25:167-75. [PMID: 19212049 DOI: 10.2116/analsci.25.167] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The hydration of ions in confined spaces, such as the interior of ion-exchange resins, micelles, and surface monolayers, is discussed on the basis of results obtained with X-ray absorption fine structure studies, electrophoresis, and ion-transfer voltammetry. The general trends are that anions are partly dehydrated therein, whereas cations are likely to keep their first hydration shells. For bromide ions, the hydration numbers under various circumstances have been determined. The extents of dehydration depend not only on the structure of the cationic sites electrostatically attracting bromide ions but also on whether the cationic sites are exposed to a solution or are effectively shielded from it. These findings will be useful for designing the systems for ionic recognition and separation.
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Affiliation(s)
- Tetsuo Okada
- Department of Chemistry, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan.
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