Iso-condensed heteroaromatic pyrroles 1 are 10π-electron aromatic compounds. They are of interest from both theoretical and synthetic points of view. They are
The ultrathin multilayer films of rare-earth-containing polyoxometalate cluster K_ 17[Eu(P_2Mo_ 17O_ 61)_2] (EuPMo) and poly(allylamine hydrochloride)(PAH)