Vinylferrocene Homopolymer and Copolymers: An Electrochemical Comparison

Robinson, Kay L.; Lawrence, Nathan S.

doi:10.2116/analsci.24.339

Cited by 7 publications

(2 citation statements)

References 35 publications

(35 reference statements)

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“…The CV curves show oxidation of the ferrocenyl units at +159 mV and reduction at −10 mV (both vs. FcMe 10 /FcMe 10 + ) and the well-structured waves show no indication for electronic coupling or interaction between the iron centers (Figure 5). This behavior is along the expected lines for polymers with spatially-separated pendant ferrocene units [6,32]. The separation of the peak potentials indicates quasi-reversible characteristics of the MVF polymer, and the oxidation peak potential at 159 mV implies that under ambient conditions oxidation by air is not to be expected.…”

Section: Redox Behavior Of Mvfsupporting

confidence: 55%

3D Micro/Nanopatterning of a Vinylferrocene Copolymer

et al. 2020

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In nanoimprint lithography (NIL), a pattern is created by mechanical deformation of an imprint resist via embossing with a stamp, where the adhesion behavior during the filling of the imprint stamp and its subsequent detachment may impose some practical challenges. Here we explored thermal and reverse NIL patterning of polyvinylferrocene and vinylferrocene-methyl methacrylate copolymers to prepare complex non-spherical objects and patterns. While neat polyvinylferrocene was found to be unsuitable for NIL, freshly-prepared vinylferrocene-methyl methacrylate copolymers, for which identity and purity were established, have been structured into 3D-micro/nano-patterns using NIL. The cross-, square-, and circle-shaped columnar structures form a 3 × 3 mm arrangement with periodicity of 3 µm, 1 µm, 542 nm, and 506 nm. According to our findings, vinylferrocene-methyl methacrylate copolymers can be imprinted without further additives in NIL processes, which opens the way for redox-responsive 3D-nano/micro-objects and patterns via NIL to be explored in the future.

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Section: Redox Behavior Of Mvfsupporting

confidence: 55%

3D Micro/Nanopatterning of a Vinylferrocene Copolymer

et al. 2020

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“…In order to understand the D‐π‐A conjugation in which electron transfer occurs from donor group to electron‐withdrawing group through a π‐electronic bridge, various ferrocene derivatives with ─C═N─ and ─C═C─ systems were examined . Such linkages and electron transfer increase the NLO responses . In ferrocene Schiff base, C═N are enriched with π‐electron density and delocalization in the double bond may result in good AIE characteristics with emission from triplet excited states .…”

Section: Introductionmentioning

confidence: 99%

Ferrocene‐appended donor–π–acceptor Schiff base: Structural, nonlinear optical, aggregation‐induced emission and density functional theory studies

David

Thirumoorthy

Palanisami

2018

Applied Organom Chemis

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New ferrocenyl Schiff bases [Fc─C(H)═N─C 6 H 3 (OH)(R)] (R = H (1), NO 2 (2)) have been synthesized and characterized using various techniques. Compound 2 was further confirmed using single-crystal X-ray diffraction analysis.Solvatochromism studies of 2 showed redshift from nonpolar to polar solvents. In addition, results of fluorescence studies indicated excellent aggregationinduced emission properties. The quasi-reversible redox wave in electrochemical studies of the Schiff bases evidenced the electron transfer ability of ferrocene to the Schiff base (─C═N─) conjugation group. The second-order nonlinear optical (NLO) properties of 1 and 2 were investigated using the Kurtz-Perry powder technique and 2 showed an effect 1.46 times greater than that of urea reference. Although 2 crystallized in the P2 1 /c centrosymmetric space group, NLO property was observed, due to non-covalent interactions (C─H⋅⋅⋅π). The band gaps were calculated using the diffuse reflectance spectroscopic method and 2 exhibited a low band gap of 2.9 eV which is due to the more electronwithdrawing nature of the nitro group. Quantum chemical calculations were performed on the synthesized compounds using the density functional theory (DFT) and time-dependent DFT approach. The theoretical studies showed that the band gap for the Schiff bases was 3.8 eV (1) and 3.2 eV (2) and they can be considered as candidates for use in optical applications. KEYWORDS aggregation-induced emission (AIE), DFT/TD-DFT, electrochemical studies, ferrocenyl Schiff bases, nonlinear optics | INTRODUCTIONResearch on ferrocene-containing compounds has drawn immense attention due to their wide-ranging applications in the fields of catalysis, [1] sensors, [2] luminescent systems, [3] nonlinear optics [4a] and molecular electronic devices [5] due to their well-established redox switching abilities. [6] Since ferrocene displays a good electrochemical response because of its strong π-donating ability and good reversibility in one-electron oxidation at a desirable

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Classification of Electrochemically Active Polymers

Inzelt

2012

Monographs in Electrochemistry

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Vinylferrocene Homopolymer and Copolymers: An Electrochemical Comparison

Cited by 7 publications

References 35 publications

3D Micro/Nanopatterning of a Vinylferrocene Copolymer

3D Micro/Nanopatterning of a Vinylferrocene Copolymer

Ferrocene‐appended donor–π–acceptor Schiff base: Structural, nonlinear optical, aggregation‐induced emission and density functional theory studies

Classification of Electrochemically Active Polymers

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