4-Connected Metal−Organic Assemblies Mediated via Heterochelation and Bridging of Single Metal Ions: Kagomé Lattice and the M6L12 Octahedron

Abstract
Single-metal-ion-based rigid molecular building blocks (MBBs) have been utilized to design and synthesize novel metal-organic assemblies. Reaction between In(NO3)3.2H2O and 2,5-pyridinedicarboxylic acid (2,5-H2PDC) has permitted the assembly of two supramolecular isomers, a Kagomé lattice and an unprecedented M6L12 discrete octahedron.