Ring-shaped Re(I) Multinuclear Complexes with Unique Photofunctional Properties

Overview

Journal J Am Chem Soc

Publisher American Chemical Society

Specialty Chemistry

Date 2013 Aug 24

PMID 23968314

Citations 18

Authors

Tatsuki Morimoto

Chiaki Nishiura

Marina Tanaka

Jana Rohacova

Yuki Nakagawa

Yusuke Funada

Kazuhide Koike

Youhei Yamamoto

Sayaka Shishido

Tatsuhiro Kojima

Takuro Saeki

Tomoji Ozeki

Osamu Ishitani

Affiliations

Soon will be listed here.

Abstract

We synthesized for the first time a series of emissive ring-shaped Re(I) complexes (Re-rings) with various numbers of Re(I) units and various lengths of bridge ligands. The photophysical properties of the Re-rings could be varied widely through changes in the size of the central cavity. A smaller central cavity of the Re-rings induced intramolecular π-π interactions between the ligands and consequently caused a stronger emission and a longer lifetime of the excited state. The Re-rings can function as efficient and durable photosensitizers. The combination of a trinuclear Re-ring photosensitizer with fac-[Re(bpy)(CO)3(MeCN)](+) (bpy = 2,2'-bipyridine) as a catalyst photocatalyzed CO2 reduction with the highest quantum yield of 82%.

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