Magnetic ordering in a mononuclear cobalt(ii) complex containing a Schiff-base pentadentate ligand

Abstract

A mononuclear cobalt(II) complex CoL⁵, containing the pentadentate O₂N₃ salen-type Schiff-base ligand H₂L⁵ = N,N′-bis(3-tert-butyl-2-hydroxy-5-methylbenzylidenyl)-1,7-diamino-4-methyl-4-azaheptane, exhibits magnetic ordering at 4 K as proven by ac magnetic susceptibility (both in- and out-of-phase), magnetization, field-cooled magnetization and zero-field cooled magnetization measurements.