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Nakajima H, Uchida K, Yoshida T, Horii Y, Sato T, Luming Z, Yamashita S, Nakazawa Y, Agulto VC, Nakajima M, Breedlove BK, Yamashita M, Iguchi H, Takaishi S. Porous Mn 2+ Magnet with a Pt-Cl Framework: Correlation between Water Vapor Adsorption/Desorption and Slow Magnetic Relaxation. Chemphyschem 2023; 24:e202200618. [PMID: 36287210 DOI: 10.1002/cphc.202200618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/26/2022] [Indexed: 11/08/2022]
Abstract
We report the water adsorption/desorption behavior and dynamic magnetic properties of the Pt-Cl chain complex [{[Pt(en)2 ][PtCl2 (en)2 ]}3 ][{(MnCl5 )Cl3 }2 ] ⋅ 12H2 O (1). Upon heating 1 in a vacuum, we obtained the dehydrated form [{[Pt(en)2 ][PtCl2 (en)2 ]}3 ][{(MnCl5 )Cl3 }2 ] (1DH). The framework structures of 1 and 1DH are identical, and both complexes underwent slow magnetic relaxation. However, the magnetic relaxation times for 1DH were shorter than those for 1, meaning that the dynamic magnetic properties were controlled upon water vapor adsorption/desorption. From detailed analyses of the dynamic magnetic behavior, a phonon-bottleneck effect contributes to the magnetic relaxation processes. We discuss the mechanism for the changes in the magnetic relaxation processes upon dehydration in terms of the heat capacity and thermal conductivity.
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Affiliation(s)
- Hirotaka Nakajima
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan
| | - Kaiji Uchida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan
| | - Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan
| | - Yoji Horii
- Department of Chemistry, Nara Women's University, Kitauoyanishimachi, Nara, 630-8503, Japan
| | - Tetsu Sato
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan
| | - Zhang Luming
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Satoshi Yamashita
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Yasuhiro Nakazawa
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Verdad C Agulto
- Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Makoto Nakajima
- Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan.,School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Sendai, 980-8578, Japan
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Mian MR, Wakizaka M, Yoshida T, Iguchi H, Takaishi S, Yamashita M. Recent progress on unusual halogen-bridged Pd(III) chain compounds realized by weak ligand field and triple hydrogen bond approaches. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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