1. Field-induced slow magnetic relaxation in a hydrogen-bonding linked Co(II) 1D supramolecular coordination polymer.
- Author
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Zhu, Yuan-Yuan, Yin, Ting-Ting, Liu, Chang-Wei, Gao, Chen, Wu, Zong-Quan, Zhang, Yi-Quan, Wang, Bing-Wu, and Gao, Song
- Subjects
MAGNETIC relaxation ,HYDROGEN bonding ,COBALT compounds ,SUPRAMOLECULAR chemistry ,POLYMERS ,ANISOTROPY - Abstract
We have investigated the dynamic behaviour of the magnetization of a hydrogen-bonding linked Co(II) 1D supramolecular coordination polymer. In the structure, two different mononuclear Co(II) species are linked by O–H···N hydrogen bonding through coordinated H2O and. Field-induced slow magnetic relaxation effect is observed and the anisotropy energy barrier is 33 K.Ab initiocalculations reveal that Co(II) ion in [Co(bpm)2(N3)2] species is uniaxial anisotropic with a negative axial zero-field splitting parameter ofD = − 82.4 cm− 1. The Co(II) ion in [Co(bpm)2(H2O)2]2+species, however, is easy-plane anisotropic with a positiveDand negativeEvalue (D = 46.3 cm− 1,E = − 7.8 cm− 1). This is an interesting complex in which slow magnetic relaxation stems from the combination contribution of uniaxial anisotropy and easy plane anisotropy. [ABSTRACT FROM PUBLISHER]
- Published
- 2015
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