A Mixed-Valence Ti(II)/Ti(III) Inverted Sandwich Compound as a Regioselective Catalyst for the Uncommon 1,3,5-Alkyne Cyclotrimerization - Álvarez-Ruiz, E.; Sancho, I.; Navarro, M.; Fernández, I.; Santamaría, C.; Hernán-Gómez, A. (Inorganic Chemistry, 2024)