Results 71 to 80 of about 24,787 (265)
Atomistic Mechanisms of Codoping-Induced p- to n-Type Conversion in Nitrogen-Doped Graphene [PDF]
It was recently shown that nitrogen-doped graphene (NG) can exhibit both p- and n-type characters depending on the C-N bonding nature, which represents a significant bottleneck for the development of graphene-based electronics. Based on first-principles calculations, we herein scrutinise the correlations between atomic and electronic structures of NG ...
arxiv +1 more source
Raman Optical Activity (ROA) uniquely probes chiral and stereochemical properties of molecules, revealing critical insights into fields like biology and material science. This review explores ROA's historical development, principles, limitations, and advancements, including resonance and surface‐enhanced methods to amplify signals.
Guojie Li+3 more
wiley +1 more source
The aim of this work was to study the activity of several nanosized zinc oxides in the crosslinking of carboxylated nitrile elastomer (XNBR). In this article, we discuss the effect of zinc oxide nanoparticles with respect to their specific surface area ...
doaj +1 more source
1,2,4‐Oxadiazole[4,5‐a]piridinium chloride adds nucleophiles to undergo electrocyclic ring opening affording 1,2,4‐oxadiazole dienamino derivatives. These pyridinium salts represent a special class of Zincke salts that are prone to rearrange when treated
Dr. Stefano Carella+2 more
doaj +1 more source
Turning plastic waste immiscibility into an advantage: efficiency improvement of PVDF‐based energy harvesters using post‐consumer thermoplastics. The study highlights the synergy between thermoplastics waste and PVDF achieving remarkable voltage outputs ≈800 V surpassing traditional PVDF‐based nanogenerators. Abstract The immiscibility of plastic waste,
Petr Slobodian+5 more
wiley +1 more source
Synthesis and biological evaluation of (3-arylisoxazol-5-yl) methyl 6-fluoro-4-oxo-4H-chromene-2-carboxylates as antioxidant and antimicrobial agents [PDF]
A series of novel (3-aryl-1,2-oxazol-5-yl) methyl 6-fluoro-4-oxo-4H- -chromene-2-carboxylate derivatives (C1-C12) were synthesized by Cu (I) catalyzed reaction of in situ generated nitrile oxides with prop-2-yn-1-yl 6-fluoro-4-oxo-4H-chromene-2 ...
Battula Kumaraswamy+3 more
doaj +1 more source
Synthetic Studies Directed Toward Streptenol D: Enantioselective Preparation of the 3,5-diacetoxy-6\u3cem\u3eE\u3c/em\u3e,8\u3cem\u3eE\u3c/em\u3e-decadiene Segment [PDF]
The enantioselective preparation of 2-(3′R,5′R-diacetoxy-6E,8E-decadienyl)-1,3-dioxane, (+)-13, is described. This synthesis of the skeleton of streptenol D utilizes the ability of a diene-complexed (tricarbonyl)iron unit to serve as a protecting and ...
Dasgupta, Bireshwar, Donaldson, William
core +1 more source
Laser‐Induced Plasma Effects on Bond Breaking in High‐Density Polyethylene Pyrolysis
This study introduces a novel application of Laser‐Induced Breakdown Spectroscopy (LIBS) for bond breaking in high‐density polyethylene (HDPE), an area previously unexplored in laser‐plastic interactions. For the first time, a numerical model has been developed to differentiate between photon‐induced and laser field‐induced plasma, demonstrating the ...
Rao Adeel Un Nabi+5 more
wiley +1 more source
Towards Understanding the Synthesis and Reactivity of Alkynyl Sulfonamides [PDF]
This thesis discusses the importance of the sulfonamide motif both in medicinal chemistry and as a synthetic tool. Particular focus is given to the alkynyl sulfonamide, a useful alkyne that first attracted the attention of this research group when it was
Luo, Yi
core
Abstract The demonstrated light‐initiated addition of radicals formed on an active methylene group to styrene derivatives exhibits a product selectivity influenced by the presence of a protic solvent. Under protic conditions, the predominant products are branched compounds with the alkene moiety attached to the methylene group.
Małgorzata Pałyga+2 more
wiley +1 more source