New polyaza tris-ferrocene and tris-2,2′-bipyridyl macrobicyclic cryptand molecules. Isolation of homo- and hetero-polymetallic zinc(II) and copper(I) cryptates containing externally coordinated ruthenium(III) cations BeerPaul D. KocianOldrich MortimerRoger J. SpencerPaul 2013 New multisite ligands containing either three peripherally linked ferrocene redox centres (L1,L3) or three externally orientated 2,2′-bipyridyl transition metal recognition sites (L2,L4) have been prepared and their homo- and hetero-polymetallic zinc(II) and copper(I) cryptates incorporating in the case of L2 and L4 externally coordinated ruthenium(II) cations have been isolated.