Results 171 to 180 of about 41,520 (248)

Photochemical and Thermal Activation of a Diarylbismuth Azide

open access: yesChemistry – A European Journal, EarlyView.
We report the synthesis and characterization of a novel diarylbismuth azide and its divergent reactivity upon thermal or photochemical activation. These findings contribute expanding the reactivity landscape of heavy pnictogen compounds and sets the basis for further investigations. ABSTRACT Azides are widely employed in synthesis as convenient nitrene
Giacomo Pugliese   +5 more
wiley   +1 more source

Phosphanyl Radicals From Bismuth‐Mediated Reactions and Sterically Encumbered Diphosphanes

open access: yesChemistry – A European Journal, EarlyView.
Reactions of LiPR2 with BiCl3 selectively give diphosphanes R2P–PR2 in high yields, presumably via Bi─P homolysis. This includes challenging cases with bulky substituents R. Sterically encumbered diphosphanes release persistent phosphanyl radicals [PR2]• in thermally initiated equilibrium reactions.
Sascha Reith   +3 more
wiley   +1 more source

Application of Multi-functional Infra-red Thermometer

open access: yesHuli yanjiu, 2004
王利利, 刘丽青
doaj  

Vibrational Circular Dichroism Spectra of 2,5‐Diaminoterephtalate Macrocycles Reveal Distant Vibrational Exciton Coupling

open access: yesChemistry – A European Journal, EarlyView.
The energy level diagrams for the ν(C═O) and the δ(N─H) vibrations, resulting of combining in‐phase and out‐of‐phase modes on the basis of their local symmetries, was built by applying the exciton coupling theory to a new class of chiral macrocycles, based on the 2,5‐diaminoterephthalate scaffold.
Samara Medina   +4 more
wiley   +1 more source

Synthesis and Reduction of Super‐Bulky Bis(anilido)acridanide Aluminium Complexes

open access: yesChemistry – A European Journal, EarlyView.
A new generation of super‐bulky bis(anilido)acridanide ligands has been developed and used in the preparation of aluminium(III) complexes. ABSTRACT Super‐bulky bis(anilido)acridanide pro‐ligands (NNNAr)H3 (NNNAr = 4,5‐bis(anilido)‐2,7,9,9‐tetramethylacridanide, anilido = NAr, Ar = DCHP, 2,6‐dicyclohexylphenyl; TCHP, 2,4,6‐tricyclohexylphenyl) have been
Matthew J. Evans   +2 more
wiley   +1 more source

Xylose Acetals ‐ a New Class of Sustainable Solvents and Their Application in Enzymatic Polycondensation

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova   +8 more
wiley   +1 more source

Fluorescence Behavior of Water‐Soluble Porphyrins Immobilized on LTA Zeolite and Its Chlorogenic Acid Polyphenol Sensing in Coffee Wastewater

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
During coffee bean and cherry washing, contaminants are released into water, making this process a major source of water pollution. Chlorogenic acid can be efficiently detected using hybrid zeolite–porphyrin materials by measuring fluorescence quenching, achieving detection limits lower than current regulatory thresholds.
João Otávio Donizette Malafatti   +10 more
wiley   +1 more source

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