Phthalocyanine-polyoxotungstate lanthanide double deckers.

Acetate ligand metathesis results in the first hybrid [MIII(Pc)(PW11O39)]6- (M = Y, Dy, Tb) double-decker scaffolds, where a phthalocyanate (Pc2-) and one of the conceptually most simple polyoxotungstates, a monolacunary Keggin cluster, are interlinked via a single rare earth ion. Characterisation includes high-resolution mass spectrometry, synchrotron-based single-crystal X-ray diffraction, various spectroscopic and electrochemical methods, and magnetic studies revealing slow relaxation of the magnetisation for the Dy derivate.