RT Journal Article T1 Cyclometalated Iridium Complexes from Intramolecular C–H Activation of [IrCp*Cl{═C(OMe)CH═C(CH3)R}L] (R = CH3, Ph; L = PPh2Me, PMe3) A1 Talavera Nevado, María A1 Bolaño García, Sandra A1 Bravo Bernárdez, Jorge A1 Castro Fojo, Jesús Antonio A1 García Fontán, Maria Soledad K1 23 Química AB The (methoxy)alkenylcarbeneiridium complexes [IrCp*Cl{═C(OMe)CH═CR1R2}L]PF6 (R1 = CH3, R2 = CH3, Ph; R1 = Ph, R2= H; L = PPh2Me, PMe3) can undergo an intramolecular C–H activation of one of the substituents R of the alkenyl fragment to give new five-membered-ring cyclometalated iridium complexes. In this work it is shown that the arrangement of substituents in the alkenyl fragment determines the size of the ring in the iridacycle complexes. The iridacyclopenta-1,3-diene complexes [tiebar above startIrCp*{═C(OMe)CH═CRtiebar above endCH2}L]PF6 (L = PPh2Me, R = CH3 (2a), Ph (4a); L = PMe3, R = CH3 (2b), Ph (4b)) can be deprotonated to give the iridacyclopenta-2,4-diene complexes [tiebar above startIrCp*{C(OMe)═CHCR═tiebar above endCH}L] (L = PPh2Me, R = CH3 (6a), Ph (7a); L = PMe3, R = CH3 (6b), Ph (7b)) PB Organometallics SN 02767333 YR 2013 FD 2013-11-04 LK http://hdl.handle.net/11093/7413 UL http://hdl.handle.net/11093/7413 LA eng NO Organometallics, 32(23): 6851-7244 (2013) DS Investigo RD 25-ene-2025