✦ LIBER ✦

Steric and Catalytic Effects in Tetraruthenated Manganese Porphyrins

✍ Scribed by Ildemar Mayer; Genebaldo S. Nunes; Henrique E. Toma; Koiti Araki

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 190 KB
Volume: 2006
Category: Article
ISSN: 1434-1948
DOI: 10.1002/ejic.200500705

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A new tetraruthenated manganese(III) porphyrin has been obtained and characterized by spectroscopy, electrochemistry, and spectroelectrochemistry. It exhibits a saddle‐shaped, nonplanar structure that conveys interesting catalytic, electrocatalytic, and spectroelectrochemical properties to the molecule. Selective steric influence induced by the peripheral ruthenium complexes has been detected in the catalytic oxidation of cyclohexane and cyclohexene with iodosylbenzene. Films formed by layer‐by‐layer electrostatic assembly with tetraanionic sulfonated copper phthalocyanine exhibit electrocatalytic activity for the oxidation of nitrite and sulfite, thus providing interesting applications in amperometric sensors.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)

📜 SIMILAR VOLUMES

Catalytic properties of iron and mangane

Catalytic properties of iron and manganese glycoconjugated porphyrins.

✍ Ph. Maillard; J.L. Guerquin-Kern; M. Momenteau 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 132 KB

Effect of Fifth Coordination in Catalyti

Effect of Fifth Coordination in Catalytic Epoxidation by a Chiral Manganese Porphyrin.

✍ Tat-Shing Lai; Kim-Ho Ng; Hai-Yang Liu; Chi K. Chang; Lam-Lung Yeung 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB

Manganese(III) porphyrins: catalytic act

Manganese(III) porphyrins: catalytic activity and intermediate studies in homogeneous systems

✍ Yassuko Iamamoto; Marilda D Assis; Katia J Ciuffi; Cynthia M.C Prado; B.Z Prellw 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 260 KB

Competition between steric and non-steri

Competition between steric and non-steric directive effects in catalytic hydrogenation: Preliminary communication

✍ T. J. Howard 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 114 KB

Anomalous ortho effects in sterically hi

Anomalous ortho effects in sterically hindered porphyrins: Tetrakis(2,6-dimethylphenyl)porphyrin and its sulfonato derivative

✍ W.A. Lee; M. Grätzel; K. Kalyanasundaram 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 483 KB

Manganese(III) complexes with porphyrins

Manganese(III) complexes with porphyrins and related compounds as catalytic scavengers of superoxide

✍ Ivan Spasojević; Ines Batinić-Haberle 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 268 KB

Two groups of Mn-based catalytic antioxidants are described in terms of their catalytic activities and electrochemical properties. In the first group, manganese porphyrins, phthalocyanine, and porphyrazine employ the Mn(III)/Mn(II) couple in the catalysis of O2 − dismutation (disproportionation). Th