Synthesis and Characterization of Carboxylic Acid Containing Metallocorroles

NICOLÁS I. NEUMAN; FABIO DOCTOROVICH; SANTIAGO E. VAILLARD

Puerto Iguazu

Simposio; SILQCOM6 (6th Latin American Symposium on Coordination and Organometallic Chemistry); 2017

UBA

Synthesisand Characterization of Carboxylic Acid Containing MetallocorrolesNicolásI. Neuman, Santiago E. Vaillard and Fabio DoctorovichDepartamentode Física, FBCB-UNL,CONICET, Facultad de Bioquímica y Ciencias Biológicas, CiudadUniversitaria, Ruta N 168 S/N, Paraje El Pozo, S3000ZAA Santa Fe,ArgentinaGrupode Química Fina, Instituto de Desarrollo Tecnológico para laIndustria Química, INTEC, UNL-CONICET, Ruta N 168 S/N, Paraje ElPozo, S3000ZAA Santa Fe, ArgentinaINQUIMAE;Departamento de Química Inorgánica, Analítica y Química Física;CONICET; Facultad de Ciencias Exactas y Naturales; Universidad deBuenos Aires. Ciudad Universitaria; Pabellón II; Buenos Aires(C1428EHA); Argentina.Metallocorrolesare interesting porphyrinoids with applications in many branches ofcatalysis, due to their ability to stabilize high formal metaloxidation states. The inclusion of carboxylic acid groups in thecorrole meso-phenyl substituents allows solubilization of thesecorroles in aqueous solutions, covalent attachment to polymers ormetal-oxide surfaces, and if the carboxylic groups are oriented nearthe metal site, acceleration of catalytic reaction rates in chemicalreactions involving exchange of protons. In this work we describe thesynthesis of several corroles containing para- or ortho-carboxyphenylsubstituents of A3-type,together with A2B-typecorroles which also include para-nitrophenyl substituents, and theircobalt complexes. We also analyze their spectroscopic properties andpresent preliminary results on electrochemical characterization andwater oxidation electrocatalysis.p { margin-bottom: 0.1in; direction: ltr; line-height: 120%; text-align: left; }