20 research outputs found

    Overview of organoiron polymers.

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    A review presents all classes of macromols. contg. iron-carbon bonds and highlights some examples of these materials. Ferrocene-based polymer, polymers contg. cyclopentadienyliron complexed arenes or iron carbonyl complexes, iron polyynes, and polymer with Fe-Fe bond are discussed. The methods utilized to synthesize and characterize these polymers are described and the properties of some of the organoiron-based polymers are noted. The diversity found in the area of organoiron polymer chem. is also discussed.Source type: Electronic(1

    Transition metal-containing macromolecules

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    Recent development in the field of organometallic and coordination polymers based on transition metals, particularly the methods and degree of polymerization, the nature of bonding present, and the type of metal moiety, has become an area of ever-growing interest. Metal-containing polymers have catalytic, magnetic, optical, electrical, and electrochemical properties which allow for a variety of applications. This review will mainly shed light on the past five years of research in organometallic and coordination polymers containing transition metals, focusing on the synthetic methodologies, structural properties, and applications

    Polyaromatic ethers and thioethers coordinated to cyclopentadienyliron cations.

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    A review describes the use of arene cyclopentadienyliron complexes in monomer and polymer synthesis. Chloroarene complexes undergo facile nucleophilic arom. substitution reactions with bis-phenols and bis-thiols to produce polymers with ether and thioether spacers in their backbones. This represents an alternative route to the synthesis of polyarom. ethers and thioethers using mild reaction conditions. An added benefit to utilizing this metal-mediated methodol. is that the resulting organometallic polymers displayed good soly. in polar org. solvents such as acetone, dichloromethane, acetonitrile, DMF, and DMSO. In contrast, on removal of the metallic moieties pendent to the polymer backbones using photolytic means, many of the resulting org. polymers were insol. in common org. solvents.Source type: Electronic(1

    Introduction

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    A review. Prepn. techniques and characterization of the transition metal-contg. polymers (organometallic polymers) where the metal is bonded to at least one org. group through σ- and/or π-bonds.Source type: Electronic(1

    Dendritic polymers designed for photo-driven applications

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    Inspired by nature as well as by their imagination, material scientists design photoactive materials to facilitate work through the use of light. Dendritic polymers are an attractive scaffold for the design of these materials, given their unique 3D topology as well as other inherent properties such as solubility that allows easy processability. Through rational synthetic designs, chromophores and/or luminophores have been precisely built into dendritic polymeric frameworks to afford material precursors for photo-driven applications. These photoactive dendritic polymers are proposed for use in a wide range of applications that includes catalysis, photonics, electronics, and biomedicine. Here, we briefly examine these polymers to highlight their photophysical and photochemical properties that are useful in fundamental studies and practical applications

    Sandwich complex-containing macromolecules: Property tunability through versatile synthesis

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    Sandwich complexes-containing polymers are attractive complements of organic-based polymers as the former feature intriguing properties. These include excellent thermal stability, redox activity, magnetic, electrical, and optical properties. This review surveys many of the synthetic approaches that have resulted in tuning the properties of sandwich complex-containing macromolecules

    Solvent and temperature effects on the electrochemical reduction of some η5-cyclopentadienyliron hexafluorophosphates of η6-polycyclic and η6-heterocyclic complexes

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    Electrochemical reduction studies of a series of η6-polycyclic and η6-heterocyclie arene-η5-cyclopentadienyliron cations were carried out in different solvents and at different temperatures. The complexes were reduced in two one-electron steps. Stability of the first reduction product was much higher than the second one. However, both undergo an irreversible chemical transition involving solvent molecules. The kinetics of the chemical reaction following the first reduction step were studied in detail. The rate constants in various solvents were determined by matching experimental curves with ones obtained by a numerical simulation

    Metal-containing polymers

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    The article provides an overview of the synthesis, properties, and applications of metal-containing polymers. The past decade has shown an exponential increase in synthetic methods, resulting in metal-containing polymers, their characterization techniques, and their potential application into a variety of fields, including chemistry, medicine, biotechnology, and more
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