Galloway, K.W., Whyte, A.M., Wernsdorfer, W., Sanchez-Benitez, J., Kamenev, K.V., Parkin, A., Peacock, R.D. and Murrie, M. (2008) Cobalt(II) citrate cubane single-molecule magnet. Inorganic Chemistry, 47(16), pp. 7438-7442. (doi: 10.1021/ic800896k)
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Abstract
An investigation of the magnetic properties of the cobalt(II) citrate cubane [C(NH2)(3)](8){Co-4(cit)(4))center dot 4H(2)O reveals that the cluster is a new cobalt(II) single-molecule magnet, with an energy barrier to reorientation of the magnetization, Delta E/k(B) = 21 K, and tau(0) = 8 x 10(-7) s. The compound displays distinct, frequency-dependent peaks in the out-of-phase (chi '') component of the ac magnetic susceptibility and magnetization versus field hysteresis loops that are temperature and sweep rate dependent. The hysteresis loops collapse at zero field due to very fast quantum tunneling of the magnetization (QTM).
| Item Type: | Articles |
|---|---|
| Keywords: | Anisotropy, cluster, complexes, cubes, dimer, energies, energy, family, hysteresis, magnetic-properties, magnetization, relaxation, single-molecule magnet, single-molecule-magnet, state symmetry, temperature. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Peacock, Dr Robert and Murrie, Professor Mark and Parkin, Dr Andrew |
| Authors: | Galloway, K.W., Whyte, A.M., Wernsdorfer, W., Sanchez-Benitez, J., Kamenev, K.V., Parkin, A., Peacock, R.D., and Murrie, M. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Inorganic Chemistry |
| ISSN: | 0020-1669 |
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