Results 101 to 110 of about 3,457 (280)

Synthesis of semibullvalene derivatives via Co-2(CO)(8)-mediated cyclodimerization of 1,4-dilithio-1,3-butadienes

open access: yes, 2014
Co-2(CO)(8)-mediated cyclodimerization of 1,2,3,4-tetrasubstituted 1,4-dilithio-1,3-butadienes readily afforded octa-substituted semibullvalenes. The X-ray crystal structure of 1,2,5,6-tetraethyl-3,4,7,8-tetraphenyl semibullvalene was determined to show ...
Xi, Zhenfeng   +5 more
core   +1 more source

Nickel‐Catalyzed LiF‐Rich Interface for Silicon Anodes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Modulating the decomposition of F‐containing species in the electrolyte to form LiF‐rich SEI has been proven to be an effective strategy for interface optimization. Herein, through nickel‐catalyzed pyrolysis of carbon precursors on silicon, graphene‐like carbon was formed to construct three‐dimensional conductive networks.
Haoqi Li   +13 more
wiley   +1 more source

Harnessing Thin‐Film Solid‐State Electrolytes: Enabling Breakthroughs in All‐Solid‐State Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration highlighting the advantages of transitioning from traditional thick solid‐state electrolytes (SSEs) to thin‐film SSEs. Thinning the electrolyte enables higher ionic conductivity, reduced interfacial polarization, improved flexibility, compact electrode contact, and enhanced energy density, offering a promising pathway toward high‐
Yitao He   +3 more
wiley   +1 more source

Chemo-, regio-, and stereoselective cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with alpha-chloroacetic acid chlorides and alpha-chloroacetic acetals

open access: yes, 2001
Treatment of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with alpha -chlorocarboxylic acid chlorides resulted in chemo- and regioselective formation of 6-chloro-3,5-dioxo esters, which were regioselectively converted into functionalised 3(2 H)furanones ...
Krummel, T., Langer, P.
core   +1 more source

One‐Pot Gold(I)‐Catalyzed Rautenstrauch Rearrangement/Nitrosocarbonyl Hetero‐Diels–Alder Reaction Sequence for the Synthesis of α‐Hydroxylated Cyclopentenones

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The regio‐ and stereoselective synthesis of ring‐fused α‐hydroxy‐2‐cyclopentenones is achieved by a one‐pot gold(I)‐catalyzed Rautenstrauch rearrangement/nitrosocarbonyl hetero‐Diels–Alder reaction/ring opening sequence carried out on suitable propargyl esters followed by selective NO bond cleavage.
Dina Scarpi   +3 more
wiley   +1 more source

Structural design and 3D printing of flexible integrated electronic systems

open access: yesFlexMat, EarlyView.
This review provides a comprehensive overview of design and integration strategies for individual components in flexible electronics, highlights the 3D‐printing fabrication techniques, and discusses recent advances in system‐level integration and their applications in real‐time monitoring and intelligent robotics.
Jiani Gong   +8 more
wiley   +1 more source

New Thioethers From 2-Nitropentachloro-1,3-Butadiene And Sulfonyl-1,3-Butadienes And Sulfinyl-1,3-Butadienes From Tetrakis(Organylthio)-1,3-Butadienes And Tris(Organylthio)-1,3-Butadienes

open access: yes, 1994
2-Nitropentachlorobutadiene (1) gives 3a-b, 3d and 4c by the reaction with thiols in DMF containing triethylamine. 5a-b, 6c and 6d are prepared by the reaction of compound 1 with thiols in EtOH containing sodium hydroxide. 7c and 7d are formed by the reaction of compound 1 with thiols in the absence of a solvent. Poly(thio)substituted compounds (8, 10,
IBIS, C, GOKSEL, S
openaire   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

open access: yesFlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu   +4 more
wiley   +1 more source

Sustainable Isotropic Meta‐Wood‐Materials by Topological Reconstruction of Plant Fibers

open access: yesInterdisciplinary Materials, EarlyView.
Meta‐wood, a novel dense and hard sustainable material, is reconstructed by pure plant fibers without adhesive. It has a 3D network with fibers mechanically interlocked together. This unique structure gives it unique properties that are very different from traditional wood and paper.
Dafang Huang   +9 more
wiley   +1 more source

Solid–Liquid Triboelectric Nanogenerators as Physicochemical Encoders for Intelligent Liquid Recognition

open access: yesInterdisciplinary Materials, EarlyView.
Solid–liquid triboelectric nanogenerators are conceptualized as dynamic physicochemical encoders that encode intrinsic liquid properties into distinguishable triboelectric fingerprints. This review provides a unified framework for these platforms, covering sensing mechanisms in droplet impact, continuous flow, and immersion modes.
Mingrui Wang   +8 more
wiley   +1 more source

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