Magnetic Properties of Some Triangular Trinuclear Complexes of [Ru2M(<i>μ</i>-CH3COO)6(<i>μ</i>3-O)(py)3]<i>n</i>+ with a Paramagnetic Ion M

• Hanako Kobayashi

  Department of Physics, Toin University of YokohamaYokohama 225

• Norikiyo Uryû

  Faculty of Engineering, Nagasaki UniversityNagasaki 852

• Iwao Mogi

  Institute of Materials Research, Tohoku UniversitySendai 980-77

• Ryo Miyamoto

  Faculty of Science, Hirosaki UniversityHirosaki 036

• Yasunori Ohba

  Institute of Chemical Reaction Science, Tohoku UniversitySendai 980-77

• Masamoto Iwaizumi

  Institute of Chemical Reaction Science, Tohoku UniversitySendai 980-77

• Yoichi Sasaki

  Graduate School of Science, Hokkaido UniversitySapporo 060

• Akihiro Ohto

  Graduate School of Science, Tohoku UniversitySendai 980-77

• Masaaki Suwabe

  Fuji Xerox Co.Ltd.Ebina 243-04

• Tasuku Ito

  Graduate School of Science, Tohoku UniversitySendai 980-77

抄録

Magnetic susceptibilities and electron paramagnetic resonances (EPRs) of coordination compounds of triangular trinuclear [Ru2M(μ-CH3COO)6(μ3-O)(py)3]n+, M = Mn(II), Fe(III), Cr(III), Ni(II), or Co(II) ions, were observed. The results were analysed by the spin vector model. Effective Bohr magneton numbers showed that the main superexchange interaction within each cluster was of the order of J/k = −300 K. This was considered to be working through μ3-O. Together with some weaker superexchange interactions through μ-CH3COO paths, fittings with the susceptibilities of the model were tried. EPR signals at temperatures of a few K were characteristic of each M ion. M = Mn(II) and M = Fe(III) were at high spin states of S = 5/2 and M = Co(II) was at a low spin state of S = 1/2. Temperature dependences of EPR signals are discussed.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 69 (11), 3163-3172, 1996-11-01

  Oxford University Press (OUP)

キーワード

• General Chemistry

詳細情報

• CRID: 1360002219104315520
• NII論文ID: 130004149366
• DOI: 10.1246/bcsj.69.3163
• ISSN: 13480634
• ISSN: 00092673
• Web Site: https://academic.oup.com/bcsj/article-pdf/69/11/3163/56195031/bcsj.69.3163.pdf
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