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
Pj. Stang et al., 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, Journal of the American Chemical Society, 119(22), 1997, pp. 5163-5168
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
.