Metallopolymers with emerging applications

Eloi, Jean‐Charles; Chabanne, Laurent; Whittell, George R.; Manners, Ian

doi:10.1016/s1369-7021(08)70054-3

Cited by 194 publications

(132 citation statements)

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“…As an organometallic polymer with iron and silicon presenting alternately in the main chain, polyferrocenylsilane (PFS) exhibits excellent optical, electrical, and magnetic properties [1][2][3][4], which can be adjusted by changing the substituent groups of silicon or chain lengths of the polymer [5,6]. Additionally, PFS block copolymer in solution can form diverse nanostructures, such as spheres [7], fibers [8], vesicles [9], cylinders [10,11], apparent tubes [12], and tapes [13], via self-assembly or micro-phase separation.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of hyperbranched polyferrocenylsilanes as preceramic polymers for Fe/Si/C ceramic microspheres with porous structures

et al. 2015

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As organometallic polymers containing Fe and Si in the main chain, hyperbranched polyferrocenylsilanes (PFS) have great potential to be Fe/Si/C ceramic precursors. In this study, three kinds of hyperbranched PFS with different crosslinking structures were synthesized by the reaction between ferrocenyl dilithium and one or two of trichloromethylsilane, dichlorodimethylsilane, and dichloromethylvinylsilane. The compositions and structures of these polymers were characterized by nuclear magnetic resonance spectroscopy, gel permeation chromatography, Fourier transform infrared (FT-IR) spectroscopy, and thermal gravimetric analysis. With respect to their ceramic yield and solubility, the potential of the obtained PFS to be used as ceramic precursors was evaluated. Moreover, ceramic microspheres with porous structures were obtained by pyrolysis of the hyperbranched PFS at different temperatures, which were characterized by FT-IR, X-ray diffraction, vibrating sample magnetometer, and element analysis. By introducing Fe to the original precursors, the ceramic microspheres exhibited catalytic properties with the presence of Fe nanoparticles on the surface of the internal pores. The porous Fe/Si/C ceramic microspheres made from the hyperbranched PFS have significant potential applications in the field of catalyst supports, energy storage, and gas separation, especially in harsh environments. Graphical abstractIntroduction

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Section: Introductionmentioning

confidence: 99%

Synthesis of hyperbranched polyferrocenylsilanes as preceramic polymers for Fe/Si/C ceramic microspheres with porous structures

et al. 2015

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“…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.…”

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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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“…[38][39][40] We have previously reported a series of Fe,Pt-containing metallopolymers as precursors to prepare L10-FePt NPs by the one-pot pyrolysis under an inert atmosphere. 10,41,42 These single-source polymer precursors could also be used as photoresist to afford micro-or nano-patterns by EBL or NIL.…”

Section: Introductionmentioning

confidence: 99%

Patterning of L1₀FePt nanoparticles with ultra-high coercivity for bit-patterned media

Meng

Wong

et al. 2017

Nanoscale

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Metallopolymers with emerging applications

Cited by 194 publications

References 52 publications

Synthesis of hyperbranched polyferrocenylsilanes as preceramic polymers for Fe/Si/C ceramic microspheres with porous structures

Synthesis of hyperbranched polyferrocenylsilanes as preceramic polymers for Fe/Si/C ceramic microspheres with porous structures

A Water Soluble Diruthenium–Gold Organometallic Microgel

Patterning of L1₀FePt nanoparticles with ultra-high coercivity for bit-patterned media

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Metallopolymers with emerging applications

Cited by 194 publications

References 52 publications

Synthesis of hyperbranched polyferrocenylsilanes as preceramic polymers for Fe/Si/C ceramic microspheres with porous structures

Synthesis of hyperbranched polyferrocenylsilanes as preceramic polymers for Fe/Si/C ceramic microspheres with porous structures

A Water Soluble Diruthenium–Gold Organometallic Microgel

Patterning of L10FePt nanoparticles with ultra-high coercivity for bit-patterned media

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Patterning of L1₀FePt nanoparticles with ultra-high coercivity for bit-patterned media