Spin-Crossover-Triggered Linkage Isomerization by the Pedal-like Motion of the Azobenzene Ligand in a Neutral Heteroleptic Iron(III) Complex

• Miyawaki, Atsuhiro

• 枝, 和男

• 持田, 智行

• 櫻井, 敬博

• 太田, 仁

• Nakajima, Takahito

• 高橋, 一志

抄録

The temperature dependence of magnetic susceptibility of [FeIII(azp)(qsal-Me)]·0.5CH3OH [Hqsal-Me = 5-methyl-N-(8-quinoyl)salicylaldimine, H2azp = 2,2′-azobisphenol] demonstrated that the spin-crossover (SCO) transition behavior changed from an abrupt transition to consecutive gradual conversions, and moreover, the initial abrupt transition was recovered, keeping the complex at room temperature. The variable-temperature crystal structures revealed that an SCO-triggered linkage isomerization of the azobenzene ligand from one orientation to two disordered orientations and the relaxation from the disordered orientations to the original orientation occurred. The high-spin to low-spin relaxation kinetics and theoretical calculation indicate that the pedal-like motion of the azobenzene ligand can be on in the high-spin state whereas off in the low-spin state.

収録刊行物

• Inorganic Chemistry

  Inorganic Chemistry 60 (17), 12735-12739, 2021-09-06

  American Chemical Society

詳細情報

• CRID: 1050012570391576064
• NII論文ID: 120007169881
• NII書誌ID: AA00675432
• DOI: 10.1021/acs.inorgchem.1c02358
• ISSN: 1520510X
• ISSN: 00201669
• HANDLE: 20.500.14094/90008782
• Web Site: https://pubs.acs.org/doi/pdf/10.1021/acs.inorgchem.1c02358
• 本文言語コード: en
• 資料種別: journal article
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