Stabilization of a 12-π electrons diamino-benzoquinonediimine tautomer

We explore tautomerism and its consequences in the first example of diamino-benzoquinonediimine bearing both electron-donating and electron-withdrawing groups on the same 6-π electron subunit.

Regioselective addition of DDQ on a quinoid ring: an entry into chiral zwitterionic bridging ligands

The Michael-type addition of DDQ on a zwitterionic ligand is described together with the chiral separation and full characterization of the two enantiomers of one derivative. These adducts offer a novel entry into chiral zwitterionic quinoidal ligands.

Tetranuclear palladium complexes with benzoquinonediimine ligands: synthesis, molecular structure and electrochemistry

Rare examples of tetrapalladated derivatives in which two flat tetradentate bridging ligands are perfectly face-to-face as a result of a remarkable ancillary ligand effect are reported.