Ligands and polymetallic complexes derived from 1,4-diformyl-2,3-dihydroxybenzene and two close analogues

Syntheses, structures and properties of polymetallic complexes prepared from both acyclic and cyclic ligands derived from the dialdehyde 1,4-diformyl-2,3-dihydroxybenzene (1), and two close analogues which also feature the 1,4-dicarbonyl-2,3-dihydroxy motif, are reviewed.