Ionic liquid promotes N2 coordination to titanocene(iii) monochloride

Abstract

Coordination of N₂ to [(Cp₂TiCl)₂] in a non-coordinating ionic liquid, Pyr₄FAP, was studied by UV-vis/NIR and EPR spectroscopies. [(Cp₂TiCl)₂] is in equilibrium between monomeric [Cp₂TiCl] and dimeric species [(Cp₂TiCl)₂]. The frozen solution EPR spectrum revealed the coordination of N₂ to [Cp₂TiCl], suggesting that Pyr₄FAP promotes N₂ coordination to the Ti(III) center.