Ligand-induced formation of a triple helical bridge involving O-donor ligands in dimeric lanthanide complexes
Abstract
The complexes [M2(p-XBP)3(NO3)6][M Pr, Nd.Sm, Er; p-XBP N,N′-xylene-1,4-diylbis(pyridin-2-one)] are shown by X-ray diffraction methods to contain the first example of an O-bonded triple helical bridge.