Electrochemical and Photophysical Properties of Ruthenium(II) Complexes Equipped with Sulfurated Bipyridine Ligands

Inorganic Chemistry
Shao-An HuaFranc Meyer

Abstract

The development of new solar-to-fuel scenarios is of great importance, but the construction of molecular systems that convert sunlight into chemical energy represents a challenge. One specific issue is that the molecular systems have to be able to accumulate redox equivalents to mediate the photodriven transformation of relevant small molecules, which mostly involves the orchestrated transfer of multiple electrons and protons. Disulfide/dithiol interconversions are prominent 2e-/2H+ couples and can play an important role for redox control and charge storage. With this background in mind, a new photosensitizer [Ru(S-Sbpy)(bpy)2]2+ (12+) equipped with a disulfide functionalized bpy ligand (S-Sbpy, bpy = 2,2'-bipyridine) was synthesized and has been comprehensively studied, including structural characterization by X-ray diffraction. In-depth electrochemical studies show that the S-Sbpy ligand in 12+ can be reduced twice at moderate potentials (around -1.1 V vs Fc+/0), and simulation of the cyclic voltammetry (CV) traces revealed potential inversion (E2 > E1) and allowed to derive kinetic parameters for the sequential electron-transfer processes. However, reduction at room temperature also triggers the ejection of one sulfur atom f...Continue Reading

References

Mar 28, 1996·Chemical Reviews·Neil G. Connelly, William E. Geiger
Aug 20, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Carola Schulzke
Oct 8, 2009·Accounts of Chemical Research·Sharon Hammes-Schiffer
Oct 12, 2010·Chemical Reviews·Jeffrey J WarrenJames M Mayer
Dec 9, 2010·Journal of the American Chemical Society·Susanne KarlssonLeif Hammarström
Jan 10, 2012·Organic Letters·Andrew C BennistonRoss W Harrington
Feb 24, 2012·Inorganic Chemistry·William B HeuerGerald J Meyer
Feb 14, 2013·Accounts of Chemical Research·Oliver S Wenger
Feb 18, 2014·Journal of the American Chemical Society·Gabriel B HallDennis L Lichtenberger
Jun 26, 2015·Journal of the American Chemical Society·Sharon Hammes-Schiffer
Jun 24, 2016·Angewandte Chemie·Margherita OraziettiOliver S Wenger
Apr 1, 2017·Journal of the American Chemical Society·Martin Kuss-PetermannOliver S Wenger
Nov 16, 2017·Angewandte Chemie·Stéphanie Mendes MarinhoAlly Aukauloo
Jan 18, 2018·Chemistry : a European Journal·Mauricio CattaneoFranc Meyer
Feb 28, 2018·Angewandte Chemie·Zheng-Da HeWolfgang Schmickler
Apr 14, 2018·Journal of the American Chemical Society·Julia Nomrowski, Oliver S Wenger
Aug 10, 2018·Chemistry : a European Journal·Julia NomrowskiOliver S Wenger
Feb 28, 2019·Chemical Communications : Chem Comm·Andrea Pannwitz, Oliver S Wenger

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.