Results 141 to 150 of about 16,084 (302)

The search for and identification of amino acids, nucleobases and nucleosides in samples returned from Mars [PDF]

open access: yes
An investigation of the returned Mars samples for biologically important organic compounds, with emphasis on amino acid, the puring and pyrimidine bases, and nucleosides is proposed.
Gehrke, Charles W.   +4 more
core   +1 more source

Extrapolation of in vitro effect concentrations to in vivo bioavailable concentrations using PBK modelling in humans for two classes of persistent and mobile compounds: triazoles and triazines. [PDF]

open access: yesArch Toxicol
Ravi Shankar AL   +11 more
europepmc   +1 more source

Modulating In‐Plane Conjugation and Core Polarity in Naphthalimide‐Based Covalent Organic Frameworks Enables Efficient H2O2 Photosynthesis

open access: yesTransformative Chemistry, EarlyView.
In this work, we integrate photoactive naphthalimide unit into highly crystalline donor–acceptor covalent organic frameworks (D–A COFs) and achieve fine‐tuning of the electronic structure of D–A COFs by synergistically modulating the in‐plane conjugation and core polarity.
Qiang Ma   +9 more
wiley   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros   +5 more
wiley   +1 more source

Polyaniline as a dual flame retardant and electrostatic dissipative additive in polyethylene nanocomposites

open access: yesJournal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 339-355, March 2025.
Effecft of co‐doping polyaniline with phosphoric acid and phytic acid on the heat release rate of polyethylene. Abstract Polyolefins, such as polyethylene (PE), are highly flammable and electrically insulative, limiting their applicability. The study explored the flame‐retardancy and electrical conductivity of PE/polyaniline (PE/PANI) nanocomposites ...
Akeem Adisa   +4 more
wiley   +1 more source

Reaction of Blatter and Verdazyl Radicals with Arynes: Synthesis and Investigation of N-Chiral, Antiaromatic Triazines, and Tetrazinones. [PDF]

open access: yesAngew Chem Int Ed Engl
Lezius L   +7 more
europepmc   +1 more source

A Trinuclear Manganese(II) Complex Bridged by a Triaminoguanidine‐Based Schiff Base Ligand: Structure and Magnetic Properties

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
A triaminoguanidine‐based Schiff base ligand enables the directed assembly of a trinuclear manganese(II) complex with an almost equilateral triangular topology. Weak antiferromagnetic exchange interactions in combination with axial zero‐field splitting govern the magnetic behavior of the Mn3 core. A triaminoguanidine‐based Schiff base ligand provides a
Daniel Plaul   +2 more
wiley   +1 more source

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