Effect of anchoring dinuclear Mn(III)-Schiff base complexes into mesoporous silica on their catalase activity

WILLIAMS, A.; PALOPOLI, C.; RICHEZZI, M.; CAMÍ, G.; GÓMEZ, G.; SIGNORELLA, S.

Iguazú

Simposio; 6th Latin American Symposium on Coordination and Organometallic Chemistry; 2017

DiMn(III) complexes of 1,5-bis(X-salicylidenamino)pentan-3-ol (X= H, 5-OMe,5-Me, 3-Me) and 1,5-bis(2-hydroxybenzophenylideneamino)pentan-3-olare good catalase mimics in non protic solvents, but inactivate after a fewturnover numbers in protic solvents as a consequence of metal dissociation.The insertion of Mn catalase mimics in mesoporous silica confershydrophobicity and confinement and has proven to protect the catalyst fromundesired degradation.