Visible-light sensitized photocatalytic hydrogen generation using a dual emissive heterodinuclear cyclometalated iridium(III)/ruthenium(II) complex

被引：23

作者：

Rommel, Sebastian A. ^{[1
]}

Sorsche, Dieter ^{[1
]}

Schoenweiz, Stefanie ^{[1
]}

Kuebel, Joachim ^{[2
,3
,4
]}

Rockstroh, Nils ^{[1
]}

Dietzek, Benjamin ^{[2
,3
,4
]}

Streb, Carsten ^{[1
]}

Rau, Sven ^{[1
]}

机构：

[1] Univ Ulm, Inst Inorgan Chem 1, Albert Einstein Allee 11, D-89081 Ulm, Germany

[2] Leibniz Inst Photon Technol IPHT Jena eV, Dept Funct Interfaces, Albert Einstein Str 9, D-07745 Jena, Germany

[3] Friedrich Schiller Univ Jena, Inst Phys Chem, Helmholtzweg 4, D-07743 Jena, Germany

[4] Friedrich Schiller Univ Jena, Abbe Ctr Photon, Helmholtzweg 4, D-07743 Jena, Germany

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2016年 / 821卷

关键词：

Dinuclear complex; Dual luminescence; Water reduction; Iridium(III); Ruthenium(II); Bibenzimidazole; DINUCLEAR IRIDIUM(III) COMPLEXES; ENERGY-TRANSFER; ELECTROCHEMICAL PROPERTIES; ARTIFICIAL PHOTOSYNTHESIS; RUTHENIUM; BIBENZIMIDAZOLE; LUMINESCENCE; PHOTOPHYSICS; MONONUCLEAR; LIGANDS;

D O I：

10.1016/j.jorganchem.2016.04.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis, spectroscopic and electrochemical properties of the heterodinuclear iridium(III)/ruthenium(II) photosensitizer Ir-BBI-Ru, i.e. i(PPY)(2)Ir-(tmBBI)-Ru((t)bbpy)(2)][PF6] (ppy = 2-phenylpyridine; tmBBI = 5,5',6,6'-tetramethyl-2,2'-bibenzimidazole; tbbpy = 4,4'-di-tert-butyl-2,2'-bipyridine) are presented. Its absorbance lies well within the visible light spectrum, showing absorption features typical for dinuclear ruthenium(II) bibenzimidazole complexes. The complex exhibits characteristic emission properties of both metal centers, indicative of an incomplete energy transfer. The application of Ir-BBI-Ru as visible-light absorbing photosensitizer in the field of photocatalytic water reduction is demonstrated by considerable hydrogen generation with a Co(II) catalyst and triethanolamine as sacrificial donor. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：163 / 170

页数：8

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