Organo-di-Lithio Reagents: Cooperative Effect and Synthetic Applications.- New Formulas for Zincate Chemistry: Synergistic Effect and Synthetic Applications of Hetero-bimetal Ate Complexes.- FascinATES: Mixed-metal ate compounds that function synergistically.- Transmetallation of Zirconacycles to Other Metals for Organic Synthesis.- [Li,Li]-Mixed Aggregates: Synergy Between Chiral Lithium Amides and Methyllithium or Butyllithium.- Organometallic Chemistry with Dianionic Pincer Ligands.- Geminal Dianions as Precursors of Carbene Complexes.