Results 41 to 50 of about 207,447 (300)

Synthesis and Structural Studies of 1,8-Pyridine-Capped 5,12-Dioxocyclams

open access: yes, 2016
5,12-Dioxocyclams and bis-dioxocyclams were capped across the 1,8-secondary amino groups with 2,6-bis(bromomethyl)pyridine to give pyridine-capped mono- and bis-dioxocyclams.
Thomas Wynn (2689093)   +1 more
core   +1 more source

Pyridine-Functionalized Fullerene Electron Transport Layer for Efficient Planar Perovskite Solar Cells

open access: yes, 2019
In regular perovskite solar cells (PSCs), the commonly used electron transport layer (ETL) is titanium oxide (TiO2). Nevertheless, the preparation of a high-quality TiO2 ETL demands an elevated-temperature sintering procedure, unfavorable for fabrication
Han-Rui Tian (1953376)   +10 more
core   +2 more sources

Simultaneous Determination of the Contents of Quinoline, Pyridine and Crotonaldehyde in Footwear Materials by Gas Chromatography-Mass Spectrometry Method

open access: yesPige Kexue Yu Gongcheng
A gas chromatography-mass spectrometry (GC-MS) method was developed for the simultaneous determination of quinoline, pyridine, and crotonaldehyde in footwear materials.
Yuhong TANG   +4 more
doaj   +1 more source

Synthesis and characterization of novel polyimides derived from 4,4’-bis(5-amino-2-pyridinoxy)benzophenone: effect of pyridine and ketone units in the main

open access: yesDesigned Monomers and Polymers, 2017
A diamine monomer, 4,4’-bis(5-amino-2-pyridinoxy)benzophenone, was designed and synthesized, and used to react with commercially different kinds of aromatic dianhydrides to prepare a series of polyimides containing pyridine and ketone units via the ...
Chunbo Wang   +5 more
doaj   +1 more source

Pyridine-Based 1,2,3-Triazoles: A New Class of Potential KAT2A Inhibitors and Scaffolds for C-H Activation and Catalysis

open access: yes, 2023
Aim: This thesis is focused on the synthesis of new pyridine-based 1,2,3-triazoles to be employed as potential scaffolds for drug discovery and for diverse applications in organic chemistry such as C-H activation and organocatalysis.
Roberta Pacifico (7896065)
core   +1 more source

Interfacial Modulation for High‐Efficiency Large‐Area Organic Photovoltaics and Perovskite‐Organic Tandem Solar Modules

open access: yesAdvanced Functional Materials, EarlyView.
Self‐assembled monolayers (SAMs) are promising hole‐transporting materials for organic photovoltaics (OPVs), but suffer from self‐aggregation and poor large‐area uniformity. We find that interfacial modification using nicotinic hydrazide can eliminate the residual SAM aggregates by forming energetically favorable complexes, yielding uniform SAM.
Seongwon Yoon   +10 more
wiley   +1 more source

N′-[(1E)-4-Hydroxy-3-methoxybenzylidene]isonicotinohydrazide monohydrate

open access: yesIUCrData, 2016
In the title hydrate, C14H13N3O3·H2O, the dihedral angle between the pyridine and benzene rings is 2.52 (9)°. Intramolecular O—H...O hydrogen bonds occur.
K. R. Roopashree   +4 more
doaj   +1 more source

Scientific Opinion on Flavouring Group Evaluation 77, Revision 2 (FGE.77Rev2): Consideration of Pyridine, Pyrrole and Quinoline Derivatives evaluated by JECFA (63rd meeting) structurally related to Pyridine, Pyrrole, Indole and Quinoline Derivatives evaluated by EFSA in FGE.24Rev2 (2013) [PDF]

open access: yesEFSA Journal, 2015
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to consider evaluations of flavouring substances assessed since 2000 by the Joint FAO/WHO Expert Committee on Food Additives
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Energetic and Geometric Characteristics of the Substituents: Part 2: The Case of NO2, Cl, and NH2 Groups in Their Mono-Substituted Derivatives of Simple Nitrogen Heterocycles

open access: yesMolecules, 2021
Variously substituted N-heterocyclic compounds are widespread across bio- and medicinal chemistry. The work aims to computationally evaluate the influence of the type of N-heterocyclic compound and the substitution position on the properties of three ...
Paweł A. Wieczorkiewicz   +2 more
doaj   +1 more source

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