Construction and Magnetic Study of a Trigonal-Prismatic Cobalt(II) Single-Ion Magnet

Abstract

A new tripodal hexadentate ligand of tris[6-(1 H-pyrazol-1-yl)pyridin-2-yl]methanol (tppm) was synthesized and explored for constructing the trigonal-prismatic cobalt(II) complex [Co(tppm)][ClO₄]₂·2CH₃CN·H₂O (1). Magnetic study showed that 1 exhibited large uniaxial magnetic anisotropy with a zero-field-splitting parameter of -80.7 cm^-1 and typical single-molecule-magnet behavior.