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Tsukiashi A, Min KS, Terasawa H, Yoshinaga S, Takeda M, Ohtani R, Nakamura M, Lindoy LF, Hayami S. Proton Relaxation Time in Water-soluble Metal Complex Nanoparticles. CHEM LETT 2018. [DOI: 10.1246/cl.180038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Asami Tsukiashi
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Kil Sik Min
- Department of Chemistry Education and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Korea
| | - Hiroaki Terasawa
- Department of Structural Bioimaging, Faculty of Life Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Sosuke Yoshinaga
- Department of Structural Bioimaging, Faculty of Life Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Mitsuhiro Takeda
- Department of Structural Bioimaging, Faculty of Life Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Ryo Ohtani
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Masaaki Nakamura
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | | | - Shinya Hayami
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
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Tsukiashi A, Nakaya M, Kobayashi F, Ohtani R, Nakamura M, Harrowfield JM, Kim Y, Hayami S. Intermolecular Interaction Tuning of Spin-Crossover Iron(III) Complexes with Aromatic Counteranions. Inorg Chem 2018; 57:2834-2842. [PMID: 29461818 DOI: 10.1021/acs.inorgchem.7b03126] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Iron(III) spin-crossover (SCO) complexes [Fe(qsal)2]BS·MeOH·H2O (1), [Fe(qsal)2](NS)·MeOH (2), [Fe(qnal)2](NS) (3), and [Fe(qnal)2]PS·MeOH·CH2Cl2 (4) (Hqsal, N-(8-quinolinyl)salicylaldimine; Hqnal, N-(8-quinolinyl)-2-hydroxy-1-naphthaldimine; BS, benzenesulfonate; NS, 1-naphthalenesulfonate; PS, 1-pyrenesulfonate) have been synthesized and characterized by X-ray structure determinations and temperature-dependent magnetic susceptibility measurements. The aromatic counteranions BS, NS, and PS can be used for the tuning of intermolecular coupling through a variety of weak interactions. All of the complexes show temperature-dependent SCO behavior. but the light-induced excited spin-state trapping (LIESST) effect was observed only for 1, 3, and 4 when the samples were illuminated (λ 808 nm) for 1 h at 5 K. In particular, 59% of the LS form of 1 was converted to the metastable HS state by illumination, equal to the highest degree of conversion yet known for LIESST in [Fe(qsal)2]+ derivatives. The lack of a LIESST effect for 2 may be due to the relatively limited degree of interaction between the cations and anions in the lattice, reflected in a much longer minimum Fe···Fe separation in this complex in comparison to the others.
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Affiliation(s)
- Asami Tsukiashi
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Manabu Nakaya
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Fumiya Kobayashi
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Ryo Ohtani
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Masaaki Nakamura
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Jack M Harrowfield
- ISIS , Université de Strasbourg , 8 allée Gaspard Monge , 67083 Strasbourg , France
| | - Yang Kim
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Shinya Hayami
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan.,Institute of Pulsed Power Science (IPPS) , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
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Li L, Craze AR, Akiyoshi R, Tsukiashi A, Hayami S, Mustonen O, Bhadbhade MM, Bhattacharyya S, Marjo CE, Wang Y, Lindoy LF, Aldrich-Wright JR, Li F. Direct monitoring of spin transitions in a dinuclear triple-stranded helicate iron(ii) complex through X-ray photoelectron spectroscopy. Dalton Trans 2018; 47:2543-2548. [DOI: 10.1039/c7dt04190j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
VT-XPS shows that the spin behaviour is reversible between the HS and LS states in a new dinuclear helicate iron(ii) complex.
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Affiliation(s)
- Li Li
- School of Science and Health
- Western Sydney University
- Penrith
- Australia
| | | | - Ryohei Akiyoshi
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Japan
| | - Asami Tsukiashi
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Japan
| | - Shinya Hayami
- Department of Chemistry
- Graduate School of Science and Technology
- Kumamoto University
- Japan
| | - Outi Mustonen
- Mark Wainwright Analytical Centre
- University of New South Wales
- Kensington
- Australia
| | - Mohan M. Bhadbhade
- Mark Wainwright Analytical Centre
- University of New South Wales
- Kensington
- Australia
| | - Saroj Bhattacharyya
- Mark Wainwright Analytical Centre
- University of New South Wales
- Kensington
- Australia
| | - Christopher E. Marjo
- Mark Wainwright Analytical Centre
- University of New South Wales
- Kensington
- Australia
| | - Yun Wang
- Centre for Clean Environment and Energy
- Gold Coast Campus
- Griffith University
- Australia
| | | | | | - Feng Li
- School of Science and Health
- Western Sydney University
- Penrith
- Australia
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Nakamura K, Hagio A, Tsukiashi A, Mizota K, Hashimoto K. [Nursing of a patient who developed acute renal failure from rhabdomyolysis]. Kango Gijutsu 1987; 33:549-53. [PMID: 3648235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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