High-field magnetization and high-frequency ESR study on the tetranuclear cluster composed of π-electrons (S= 1/2 ) and d-electrons (S=5/2)

Yuji Inagaki, Takayuki Asano, Yoshitami Ajiro, Tatsuya Kawae, Kazuyoshi Takeda, Hiroyuki Nojiri, Mitsuhiro Motokawa, Hiroyuki Mitamura, Tsyneaki Goto, Megumi Tanaka, Kenji Matsuda, Hiizu Iwamura

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)

抄録

Recently, Iwamura's group has succeeded in synthesizing the interesting new tetranuclear cluster composed of two paramagnetic Mn2+ ions (S=5/2 per ion) and two organic free radicals (S= 1/2 per radical) as bridging ligand, [{Mn(hfac)2}2(bnn)] (bnn=2,2′-bis[(1-oxyl-3-oxide-4,4,5,5-tetramethyl- imidazolinyl)]). The crystal structure is triclinic (space group P1) and each cluster is composed of two triangles which share their own base like a 'butterfly'. There are two kind of exchange pathways within the cluster and both of them are likely to be antiferromagnetic. Therefore, spin frustration may occur and we expect many possible ground states with different total spins (ST=0 to ST=6), depending on the relevant interactions and magnetic field. We wish to discuss the important magnetic parameters such as exchange interactions and anisotropy which characterize this interesting system through measurements of high-field magnetization and high-frequency electron spin resonance.

本文言語英語
ページ(範囲)115-120
ページ数6
ジャーナルMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
343
DOI
出版ステータス出版済み - 2000
イベントProceedings of the International Symposium Molecular Design and Funtionalities of Assambled Metals Complexes (AMC'99) - Kyoto, Jpn
継続期間: 11月 30 199912月 2 1999

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学

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