Highly stable cage-like complexes by self-assembly of tetracationic Zn(ii) porphyrinates and tetrasulfonatocalix[4]arenes in polar solventsElectronic supplementary information (ESI) available: Figs. 3–6. See http://www.rsc.org/suppdata/cc/b0/b006960o/

Abstract

Tetracationic Zn(II) porphyrinates and tetraanionic calix[4]arenes can be assembled in polar solvents to obtain cage-like complexes in an entropy driven process. These structures are remarkably stable even in the presence of water or competing salts.