IntroductionThe construction of molecular aggregates containing structures on the nanometre scale is an area of intense current interest.1In our previous work we have shown that the cation coordination chemistry of substituted calix[4]diquinones is remarkably interesting. Structural variation is observed in these complexes due to the possible involvement of upper rim oxygen atoms in the cation coordination sphere. This feature allows the formation of a variety of structures including dimers and onedimensional coordination chains.2Whilst investigating the complexation and redox chemistry of related calix[4]diquinones with cations,3–6we have discovered a novel example of a continuous three dimensional channel network structure formed by a unique calix[4]diquinone bis-acidL–lead(II) complex which selfassemblesvia bothupper and lower rim quinone oxygen–lead(II) cation interactions.