Articles with "vinylene" as a keyword



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Sulfonic‐Pendent Vinylene‐Linked Covalent Organic Frameworks Enabling Benchmark Potential in Advanced Energy

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202300408

Abstract: Both proton exchange membrane fuel cells and uranium‐based nuclear techniques represent two green and advanced energies. However, both of them still face some intractable scientific and industrial problems. For the former, established proton‐conduction materials always… read more here.

Keywords: vinylene linked; pendent vinylene; sulfonic pendent; linked covalent ... See more keywords
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Photo and electroluminescence of a phenylene vinylene conjugated polymer containing bipirydine units and chelated europium complex

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Published in 2021 at "Journal of Luminescence"

DOI: 10.1016/j.jlumin.2020.117764

Abstract: Abstract A conjugated polymer, poly[5,5'-(2,2'-bipyridylene)vinylene-alt-co-2,5-(1,4-bis(octyloxy)vinylene (PBPyVOctV), was synthesized by the polymerization of 5,5'-divinyl-2,2'-bipyridine with 1,4-dibromo-2,5-bis octyloxy) benzene through a Heck cross-coupling reaction. Then, a metallopolymer, PBPyVOctV-Eu(tta)3, was obtained by the bipyridine chelating coordination of PBPyVOctV… read more here.

Keywords: vinylene; tta; europium; pbpyvoctv ... See more keywords
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Effects of End-Groups on Photophysical Properties of Poly(9,9-di-n-octylfluorene-2,7-vinylene)s Linked with Metalloporphyrins: Synthesis and Time-Resolved Fluorescence Spectroscopy

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Published in 2017 at "Macromolecules"

DOI: 10.1021/acs.macromol.7b00047

Abstract: A series of poly(9,9-di-n-octyl-fluorene-2,7-vinylene)s (PFVs) containing metalloporphyrins at the chain ends with different conjugation lengths (ca. average 8 or 24 FV repeat units), PFV-[Por(M)]2, have been prepared by olefin metathesis of the vinyl chain ends… read more here.

Keywords: vinylene; fluorescence spectroscopy; resolved fluorescence; time resolved ... See more keywords
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Synthesis and Acid-Responsive Properties of a Highly Porous Vinylene-Linked Covalent Organic Framework.

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Published in 2021 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.1c01791

Abstract: The recently emerging vinylene-linked covalent organic frameworks (VCOFs) stand out from other COFs with exceptional chemical stability and favorable light-emitting properties, promising sensing applications for acids/bases or in strong acidic/basic conditions. Here we systematically investigated… read more here.

Keywords: vinylene; linked covalent; synthesis acid; vinylene linked ... See more keywords
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Single-Component Polycondensation of Bis(alkoxycarbonyldiazomethyl)aromatic Compounds To Afford Poly(arylene vinylene)s with an Alkoxycarbonyl Group on Each Vinylene Carbon Atom

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Published in 2020 at "ACS Omega"

DOI: 10.1021/acsomega.9b03408

Abstract: The original synthetic strategy for a new type of poly(arylene vinylene) (PAV) is presented, where the C=C-bond-forming coupling of bis(alkoxycarbonyldiazomethyl)aromatic compounds is utilized as propagation. The strategy is unique in that the resulting PAVs have… read more here.

Keywords: alkoxycarbonyldiazomethyl aromatic; vinylene; poly arylene; aromatic compounds ... See more keywords
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Synthesis of Vinylene-Linked Covalent Organic Frameworks by Monomer Self-Catalyzed Activation of Knoevenagel Condensation.

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Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.1c12902

Abstract: Reticular chemistry based on thermodynamically controlled linking modes and numerous organic building blocks has constituted versatile crystalline frameworks in molecular-level precision. However, vinylene-linked covalent organic frameworks (COFs) are still quite far from flexible tailoring in… read more here.

Keywords: condensation; vinylene linked; organic frameworks; linked covalent ... See more keywords
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Efficient synthesis of vinylene-linked conjugated porous networks via the Horner-Wadsworth-Emmons reaction for photocatalytic hydrogen evolution.

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Published in 2021 at "Chemical communications"

DOI: 10.1039/d1cc02280f

Abstract: A simple, yet efficient synthetic approach for the construction of vinylene-linked conjugated porous networks was developed. Based on the Horner-Wadsworth-Emmons reaction, the condensation polymerization for the formation of an sp2 carbon-linkage can be achieved at… read more here.

Keywords: porous networks; conjugated porous; vinylene; linked conjugated ... See more keywords
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Synthesis of oxazolidinones through ring-opening and annulation of vinylene carbonate with 2-pyrrolyl/indolylanilines under Rh(III) catalysis.

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Published in 2021 at "Chemical communications"

DOI: 10.1039/d1cc05059a

Abstract: Herein, we have developed a rhodium-catalyzed C-H functionalization and subsequent intramolecular ring-opening/cyclization of vinylene carbonate with 2-pyrrolyl/indolylanilines, which leads to oxazolidinones in moderate to good yields. In this transformation, vinylene carbonate only eliminates one oxygen… read more here.

Keywords: ring opening; vinylene carbonate; vinylene; pyrrolyl indolylanilines ... See more keywords
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Palladium-catalyzed carbene coupling polymerization: synthesis of E-poly(arylene vinylene)s.

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Published in 2022 at "Chemical communications"

DOI: 10.1039/d1cc06587d

Abstract: The Pd-catalyzed carbene coupling reaction of N-tosylhydrazones and benzyl bromides has been developed into a polymerization process for the first time, providing an efficient method for the synthesis of poly(arylene vinylene)s (PAVs). This method affords… read more here.

Keywords: vinylene; poly arylene; polymerization; carbene coupling ... See more keywords
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Synthesis of Iron(II) Clathrochelate-Based Poly(vinylene sulfide) with Tetraphenylbenzene Bridging Units and Their Selective Oxidation into Their Corresponding Poly(vinylene sulfone) Copolymers: Promising Materials for Iodine Capture

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Published in 2022 at "Polymers"

DOI: 10.3390/polym14183727

Abstract: The development of a simple and efficient synthetic methodology to engineer functional polymer materials for gas adsorption is necessary due to its relevance for various applications. Herein, we report the synthesis of metalorganic poly(vinylene sulfide)… read more here.

Keywords: vinylene sulfide; vinylene; poly vinylene; iron clathrochelate ... See more keywords