Novel photo- and/or thermochromic MOFs derived from bipyridinium carboxylate ligands

Abstract

Two new Zn-MOFs based on 1-(3,5-dicarboxyphenyl)-4,4′-bipyridinium bromide have been synthesized. Compound <bold>1</bold> has a 3D interpenetrated cationic framework with photo- and thermochromism, while compound <bold>2</bold> possesses a 2D layered cationic network with only photochromism.