MOLECULAR ARCHITECTURE VIA COORDINATION - MARRIAGE OF CROWN-ETHERS AND CALIXARENES WITH MOLECULAR SQUARES, UNIQUE TETRANUCLEAR METALLAMACROCYCLES FROM METALLACROWN ETHER AND METALLACALIXARENE COMPLEXES VIA SELF-ASSEMBLY

Reaction of metallacrown and metallacalixarene platinum bistriflates w ith bipyridine as well as other bidentate connector ligands results in the formation of tetranuclear macrocycles via self-assembly that comb ine crown ether and calixarene chemistry with molecular squares. Multi nuclear NMR spectroscopy and electrospray mass spectrometry are employ ed to characterize these unique supramolecular species. The calixarene metallamacrocycles are used in simple transport experiments to carry sulfonate salts from one aqueous phase into another through chloroform .