A single-molecular magnet: [Mn12O12(O2CCH2Br) 16(H2O)4]

Hui Lien Tsai, Da Min Chen, Chen I. Yang, Tyn Yih Jwo, Ching Shuei Wur, Gene Hsiang Lee, Yu Wang

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Abstract

The synthesis, X-ray crystal structure and magnetic properties of a new dodecanuclear manganese complex [Mn12O12(O2CCH2Br) 16(H2O)4] - 4CH2Cl2(2) - 4CH2Cl2 are reported. Complex 2 · 4CH2Cl2 crystallizes in tetragonal space group I41/a with the following cell dimensions at 293(2) K: a = b = 26.697(4) Å, c = 13.246(4) Å, and Z = 4. The results of DC and AC magnetic susceptibility studies are described. DC measurements show the presence of hysteresis loops, and the out-of-phase component of AC magnetic susceptibilities has a frequency dependent maximum. Step-like features are seen on hysteresis loops and quantum mechanical tunneling could be the origin of these unusual relaxations.

Original languageEnglish
Pages (from-to)511-514
Number of pages4
JournalInorganic Chemistry Communications
Volume4
Issue number9
DOIs
Publication statusPublished - 2001 Sep 3

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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    Tsai, H. L., Chen, D. M., Yang, C. I., Jwo, T. Y., Wur, C. S., Lee, G. H., & Wang, Y. (2001). A single-molecular magnet: [Mn12O12(O2CCH2Br) 16(H2O)4]. Inorganic Chemistry Communications, 4(9), 511-514. https://doi.org/10.1016/S1387-7003(01)00265-9