Electrocatalytic Conducting Polymers:  Oxygen Reduction by a Polythiophene−Cobalt Salen Hybrid

Kingsborough, Richard P.; Swager, Timothy M.

doi:10.1021/cm9907099

Cited by 98 publications

(66 citation statements)

References 24 publications

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“…To this end, a transition metal-containing polythiophene, when immobilised on an electrode, has proven effective in catalysing the four electron reduction of dioxygen to water. [163] It was suggested that the high efficiency was due to the well redox-matched system enabling rapid transport of electrons to the metal centre.…”

Section: Catalysis and Electrocatalysismentioning

confidence: 99%

Metallopolymers: New Multifunctional Materials

2007

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Since the mid 1990s soluble, well‐characterized high molecular weight metal‐containing and metallosupramolecular polymers have become readily available for the first time, even in some cases, with narrow molecular weight distributions and controlled architectures such as block copolymers. This has led to a rapidly expanding interest in their properties and uses. The review provides a survey of the range of applications for these new materials, which combine the processing advantages of polymers with the functionality provided by the presence of metal centers.

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Section: Catalysis and Electrocatalysismentioning

confidence: 99%

Metallopolymers: New Multifunctional Materials

2007

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“…[10] Therefore the pta molecule could be an excellent ligand from which to obtain water-soluble Ru-Au polymers which could have interesting and useful properties for a variety of applications such as magnetism, [11] nonlinear optics, [12] electrocatalysis, [13] photocatalysis, [14] photovoltaic, [15] template formation of ordered networks, [16] advanced electrode materials, [17] and conjugated coordination polymers.…”

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confidence: 99%

A Water Soluble Diruthenium–Gold Organometallic Microgel

et al. 2008

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Selection of the combination of metal, ligand set, and spacer groups that are most appropriate to form a coordination complex with a desired function are of paramount importance in supramolecular chemistry. In particular, the establishment of reproducible methods to accomplish controlled selforganization of molecules to form polymers and homo-or heterometallic coordination aggregates is an important field of research.[1] Although important advances have already been made, few metallopolymers, which are one of the most exciting classes of functional materials, are water soluble. An important example of a water-soluble polymer is the polyferrocenylsilane-b-polyaminomethacrylate copolymer described by Manners and co-workers, [2] as part of their ongoing study on metallocene-based polymers.[3] Recent examples also include the water-soluble metallopolymer obtained by reaction of bipyridyl-appended poly(p-phenyleneethynylene) (PPEs) with metal ions in organic and aqueous solution. [4] Other examples of ligands that afford coordination polymers with various topologies and applications are ferrocenyl groups bearing bipyridine (bpy) [5] or carboxylate moieties.[6]A recent example of a non-water-soluble multimetallic polymer is [Sm(, in which the CN ligands bridge the samarium and ruthenium metal centers.[7]The first air-stable water-soluble multimetallic polymer that includes mixed P,N ligands as metal-coordinating spacers has been recently reported by us.[8] This heterobimetallic complex is based on two metal-containing moieties, [CpRu]À , and is bridged by the cagelike water-soluble monodentate phosphine 1,3,5-triaza-7-phosphaadamantane (pta) in an unprecedented P,N coordination mode. More recently, the synthesis of silver coordination polymers containing pta bridging molecules in a tridentate P,N,N' coordination mode [9] has been reported and several examples of pta N coordination have been presented.[10] Therefore the pta molecule could be an excellent ligand from which to obtain water-soluble Ru-Au polymers which could have interesting and useful properties for a variety of applications such as magnetism, [11] nonlinear optics, [12] electrocatalysis, [13] photocatalysis, [14] photovoltaic, [15] template formation of ordered networks, [16] advanced electrode materials, [17] and conjugated coordination polymers.[18]Herein, we describe the first water-soluble, air-stable heterobimetallic polymeric structure based on two metalcontaining moieties [CpRuCNRuCp] + and [Au(CN) 4 ] À , bridged by pta in the P,N coordination mode. Interestingly, this complex display gel-like properties [19] in water, specifically a thermally controlled volume transition. To the best of our knowledge, this is the first example of an coordination polymer network that is sensitive to its environment. The physical and chemical properties of this complex make it a promising material for industrial and biological applications, for example, smart catalysis, drug delivery, or chemical sensing.The first strategy we attempted to obtain a water soluble ...

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“…To the best of our knowledge, reactivity of the -diketones containing thienyl moieties toward diamines has been scarcely reported in the literature [15]. The incorporation of thienyl units in the structure of a compound not only opens up opportunities to the formation of polymeric [16,17] and metallopolymeric materials [18,19], either through chemical or electrochemical oxidation of the thienyl units [20][21][22], but also to the development of new drugs [4].…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%