Multifunctional ligands bearing metal-chelating sites derived from catechol have been much used in supramolecular chemistry.[1] Here, we describe some unusual metal derivatives of the ligand LH4 (I), in which two catechol units are attached to the central carbon atom of a fluorene unit. Complexes of this previously unreported ligand are unknown, however, paramagnetic zinc complexes of a related fluorene-derived ligand containing tertbutyl- ...
