The paper of Prof. Ken Sakai (Molecular Photoconversion Devices Division, I²CNER) was published in “Chemical Communications” on November 19, 2015 .

◆Outline

A new single-component photocatalyst for water reduction to H2, dichloro(dpbpy)platinum(II) derivative (dpbpy = 4,4’-diphenyl-2,2’-bipyridine) tethered to four pendant viologen acceptors (1), is shown to exhibit higher photocatalytic activity than the previously reported dichrolo(bpy)-platinum(II) analog (2; bpy = 2,2’-bipyridine). The activity of 1 is observed to be twice as high as that of 2, consistent with the higher absorptivity of 1 at the metal-to-ligand charge transfer (1MLCT) band due to the larger π-conjugation in dpbpy relative to bpy.

◆Paper

Title:Photochemical H₂ Evolution from Water Catalyzed by Dichloro(diphenylbipyridine)platinum(II) Derivative Tethered to Multiple Viologen Acceptors

Authors: Kyoji Kitamoto and Ken Sakai

DOI: 10.1039/C5CC08044D

Published: Nov. 19, 2015