Slow magnetic relaxation in octahedral cobalt(II) field-induced single-ion magnet with positive axial and large rhombic anisotropy

Radovan Herchel; Lucia Váhovská; Ivan Potočňák; Zdeněk Trávníček

doi:10.1021/ic500916u

Slow magnetic relaxation in octahedral cobalt(II) field-induced single-ion magnet with positive axial and large rhombic anisotropy

Inorg Chem. 2014 Jun 16;53(12):5896-8. doi: 10.1021/ic500916u. Epub 2014 May 22.

Authors

Radovan Herchel¹, Lucia Váhovská, Ivan Potočňák, Zdeněk Trávníček

Affiliation

¹ Regional Centre of Advanced Technologies and Materials, Department of Inorganic Chemistry, Faculty of Science, Palacký University , 17. Listopadu 12, CZ-771 46 Olomouc, Czech Republic.

PMID: 24853769
DOI: 10.1021/ic500916u

Abstract

Pseudooctahedral mononuclear cobat(II) complex [Co(abpt)2(tcm)2] (1), where abpt = 4-amino-3,5-bis(2-pyridyl)-1,2,4-triazole and tcm = tricyanomethanide anion, shows field-induced slow relaxation of magnetization with U = 86.2 K and large axial and rhombic single-ion zero-field-splitting parameters, D = +48(2) cm(-1) and E/D = 0.27(2) (D = +53.7 cm(-1) and E/D = 0.29 from ab initio CASSCF/NEVPT2 calculations), thus presenting a new example of a field-induced single-ion magnet with transversal magnetic anisotropy.