resumo
The synthesis and structural characterization of novel metal-organic-framework-type materials obtained from the reaction of 5,10,15,20-tetrakis[ 2,3,5,6-tetrafluoro-4-(4-pyridylsulfanyl) phenyl] porphyrin (H(2)P1) and 5,10,15,20-tetrakis(4-pyridyl) porphyrin (H(2)P2) with copper(II) acetate is reported. The new material, CuP1S, shows higher heterogeneous catalytic activity than the homogeneous porphyrin-copper(II) complex CuP1 in the oxidation of catechol into ortho-benzoquinone in the presence of air (O-2) or H2O2 (30 %).
palavras-chave
SENSITIZED SOLAR-CELLS; BIOMIMETIC CATALYSTS; METALLOPORPHYRIN DERIVATIVES; CATECHOL OXIDASE; HIGHLY EFFICIENT; AQUEOUS-MEDIA; PHOTOCATALYSIS; COORDINATION; FEATURES; PHTHALOCYANINES
categoria
Chemistry
autores
Castro, KADF; Figueira, F; Mendes, RF; Cavaleiro, JAS; Neves, MDPMS; Simoes, MMQ; Paz, FAA; Tome, JPC; Nakagaki, S
nossos autores
Filipe Alexandre Almeida Paz
Investigador Principal
Flávio Alberto da Silva Figueira
Investigador Júnior
Ricardo Faria Mendes
Investigador Júnioragradecimentos
Thanks are owed to Conselho Nacional de Desenvolvimento Cientffico e Tecnologico (CNPq), Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES). We wish to thank Fundacao para a Ciencia e a Tecnologia (FCT) for financial support to QOPNA (FCT UID/QUI/00062/2013), CICECO (POCI-01-0145-FEDER-007679; FCT Ref. UID/CTM/50011/2013), and CQE (FCT UID/QUI/0100/2013) research units, through national funds and where applicable co-financed by FEDER, within the PT2020 Partnership Agreement. We further wish to thank CICECO for the specific funding towards the purchase of the single-crystal X-ray diffractometer. K.A.D.F.C. thanks CNPq for the granted postdoctoral scholarship (Process 151512/2013-2 and 201107/2014-7). FCT is also gratefully acknowledged for a Ph.D. grant No. SFRH/BD/84231/2012 (for R.F.M.).