Efficient photocatalytic proton-coupled electron-transfer reduction of O2 using a saddle-distorted porphyrin as a photocatalyst. Issue 34 (10th April 2019)

• Record Type: Journal Article
• Authors: Aoki, Emi; Suzuki, Wataru; Kotani, Hiroaki; Ishizuka, Tomoya; Sakai, Hayato; Hasobe, Taku; Kojima, Takahiko
• Is Part Of: Chemical communications. Volume 55:Issue 34(2019)
• Page Start: 4925
• Page End: 4928
• Publication Date: 2019-04-10
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c9cc01547g
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Photocatalytic O2 reduction reactions proceeded efficiently to produce H2 O2 using a diprotonated saddle-distorted dodecaphenylporphyrin as a photocatalyst. Abstract : Photocatalytic O2 reduction reactions proceeded to produce H2 O2 using a diprotonated saddle-distorted dodecaphenylporphyrin as a photocatalyst. The quantum yield (12%), the turnover number (3000 for 6 h), and the turnover frequency (500 h −1 ) are achieved in photocatalytic systems based on free-base porphyrins for the first time. The photocatalytic reaction mechanism has been revealed by ns-laser flash photolysis and kinetic analysis.