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Organophosphorus Azoles Incorporating a Tetra-, Penta-, and Hexacoordinated Phosphorus Atom: NMR Spectroscopy and Quantum Chemistry [PDF]

open access: goldMolecules, 2023
The review presents extensive data (from the author’s work and the literature) on the stereochemical structure of functionalized organophosphorus azoles (pyrroles, pyrazoles, imidazoles and benzazoles) and related compounds, using multinuclear 1H, 13C ...
Lyudmila Larina
doaj   +2 more sources

Organophosphorus Chemistry: Synthesis of New Phosphonic Acid Derivatives Bearing a Triazole Moiety [PDF]

open access: hybridChemistry Proceedings, 2022
A series of new 1,2,3-triazolylphosphonates were synthesized through multicomponent alkyne-azide 1,3-dipolar cycloaddition catalyzed by copper nanoparticles on activated carbon.
Esteban Bjerg   +4 more
doaj   +2 more sources

Prebiotic Chemistry of Phosphite: Mild Thermal Routes to Form Condensed-P Energy Currency Molecules Leading Up to the Formation of Organophosphorus Compounds [PDF]

open access: goldLife, 2023
The in-fall of meteorites and interstellar dust particles during the Hadean–Archean heavy bombardment may have provided the early Earth with various reduced oxidation state phosphorus compounds and minerals, including phosphite (HPO32−)([Pi(III)]).
Maheen Gull   +4 more
doaj   +2 more sources

Chemistry of Organophosphorus Compounds

open access: bronzeJournal of Synthetic Organic Chemistry, Japan, 1970
Tsujiaki Hata
openaire   +4 more sources

α-Aminophosphonates, -Phosphinates, and -Phosphine Oxides as Extraction and Precipitation Agents for Rare Earth Metals, Thorium, and Uranium: A Review

open access: yesMolecules, 2022
α-Aminophosphonates, -phosphinates, and -phosphine oxides are a group of organophosphorus compounds that were investigated as extraction agents for rare earth (RE) metals and actinoids for the first time in the 1960s.
Esa Kukkonen   +2 more
doaj   +1 more source

Chemical Weapons: History of the Study of Organophosphorus Toxic Agents Abroad

open access: yesВестник войск РХБ защиты, 2023
Organophosphorus compounds occupy a unique positon among all chemical warfare agents (CWA's). Since the 1930-s their high toxicity, wide range of physical-chemical properties and complex action attracted close attention of foreign military experts.
I. A. Nelga   +5 more
doaj   +1 more source

Asymmetrically Substituted Phospholes as Ligands for Coinage Metal Complexes

open access: yesMolecules, 2022
A series of coinage metal complexes asymmetrically substituted 2,5-diaryl phosphole ligands is reported. Structure, identity, and purity of all obtained complexes were corroborated with state-of-the-art techniques (multinuclear NMR, mass spectrometry ...
Fabian Roesler   +2 more
doaj   +1 more source

Quantum Chemical Approach to the Adsorption of Chlorpyrifos and Fenitrothion on the Carbon-Doped Boron Nitride Nanotube Decorated with Tetrapeptide

open access: yesCrystals, 2022
In the present study, four materials based on boron nitride nanotubes—namely pristine BNNT, C-doped BNNT, tetrapeptide/BNNT, and tetrapeptide/C-doped BNNT—were examined to evaluate adsorption of the organophosphorus pesticides chlorpyrifos and ...
Chien-Lin Lee, Chia Ming Chang
doaj   +1 more source

Stereodynamism in Chiral Polyaromatic Phosphepines. [PDF]

open access: yesChemistry
Stereodynamism of phosphahelicenoid scaffolds can be used to afford diastereoisomers of polyaromatics fused with a chiral seven‐membered P‐ring. In particular, a complex interplay between the inversion at the P centre and helicenoid epimerization, as well as a competition with a rearomatization reaction, takes place.
Lyu M   +7 more
europepmc   +2 more sources

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