Supramolecular assemblies of sulfur- and selenium-containing expanded porphyrins mediated through noncovalent interactions

Abstract

Various supramolecular assemblies based on expanded porphyrins building blocks containing sulfur and/or selenium in the core, formed through multiple non-covalent hydrogen bonding interactions are highlighted. Specifically, modified expanded porphyrins such as 22 π sapphyrins, 26 π rubyrins, and 34 π octaphyrins self assemble in solid state through C-H⋯O, C-H⋯N, C-H⋯S, C-H⋯Se, C-H⋯π, and C-H⋯Cl interactions to form dimeric, oligomeric, and three dimensional networks. Furthermore, the supramolecular networks promoted by trapped solvent molecules such as nitrobenzene and bound onions such as chloride or trifluoroacetate through noncovalent interactions will be discussed. Copyright © Taylor & Francis Inc.