One-Dimensional Ferrimagnetic Chains with Weak Ferromagnetic Interchain Interaction in a 1 : 1 Manganese(II) Bis(hexafluoroacetylacetonate) Complex with Bis[3-tert-butyl-5-(N-oxy-tert-butylamino)phenyl] Nitroxide

Black block crystals of [Mn(hfac)2•1]n obtained from a solution of anhydrous manganese(II) bis(hexafluoroacetylacetonate) {Mn(hfac)2} and bis[3-tert-butyl-5-(N-oxy-tert-butylamino)-phenyl] nitroxide (1) in n-hexane/ether were found to have a one-dimensional chain structure by the coordination of the terminal nitroxide groups of 1 with two different Mn ions and undergo a transition into a spin-ordered state at 11 K.