Magnetic ordering in self-assembled materials consisting of cerium(III) ions and the radical forms of 2,5-TCNQX 2 (X=Cl, Br)

Abstract

Ribbon-like coordination polymers composed of CeIII ions and TCNQX2 (TCNQ=tetracyanoquinodimethane; X=Cl, Br), but not TCNQ radicals, show unexpected magnetic ordering (see picture; Ce green). This behavior reveals remarkable subtlety for magnetic properties of lanthanide–organic materials.