Calcium stilbene complexes: structures and dual reactivity.
Andrea CauseroHolger ElsenGerd BallmannAna EscalonaSjoerd HarderPublished in: Chemical communications (Cambridge, England) (2018)
Addition of a calcium hydride complex to diphenylacetylene gave a complex in which the stilbene dianion symmetrically bridges two Ca2+ ions. DFT calculations discuss the effect of the metal stilbene coordination. The stilbene complex reacts as a base (with H2) or an electron donor (with I2) and catalyzes the reduction of diphenylacetylene.