Results 101 to 110 of about 49,559 (307)

Ambident Reactivity in the Phenyl + NO Radical Recombination

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT The recombination reaction of nitric oxide (NO) with radicals via its oxygen atom, rather than the more common nitrogen site, offers an intriguing pathway to the formation of oxynitrenes. The photochemical isomerization of nitroso compounds into their corresponding oxynitrenes may involve such a step.
Virinder Bhagat   +3 more
wiley   +1 more source

Photochemical and Structural Studies on Cyclic Peptide Models

open access: yesMolecules, 2018
Ultra-violet (UV) irradiation has a significant impact on the structure and function of proteins that is supposed to be in relationship with the tryptophan-mediated photolysis of disulfide bonds. To investigate the correlation between the photoexcitation
Tamás Milán Nagy   +8 more
doaj   +1 more source

Photolytic Hydrophosphination: Insights Into Catalyzed and Uncatalyzed Processes

open access: yesChemistry – A European Journal, EarlyView.
Catalyst‐free photolytic hydrophosphination is demonstrated for vinyl arenes and activated alkenes in polar protic (alcohol) solvents. These reactions appear to be closed‐shell, affirming that even ambient light can impact a reaction—a potentially broad influence on even mundane reactions.
Emma J. Finfer   +2 more
wiley   +1 more source

Photolysis of dinotefuran and nitenpyram in water and ice phase: Influence mechanism of temperature over photolysis

open access: yes
Neonicotinoids are widely used pesticides around the world, but the photolysis of neonicotinoids in cold agricultural region are still in blank. This paper aimed to study the influence of cold temperature over photolysis of neonicotinoids.
Qi Li   +8 more
core   +1 more source

Photolysis of Di-t-butylnitroxide

open access: yes, 1982
Di-t-butylnitroxide (1) on photolysis in methylcyclohexane gives in addition to t-butoxy(di-t-buty1)-amine (7) and photolabile 2-methyl-2-nitrosopropane (2) a low yield of a white crystalline solid identified as a mixture of di-t-butylhydroxylammonium ...
JM Coxon, E Patsalides
core   +1 more source

Catalyst‐Free Cyanation of Arenes by Acetonitrile in a Plasma–Liquid Microreactor

open access: yesChemistry – A European Journal, EarlyView.
An original approach of arylnitrile synthesis was developed by generating an argon plasma in contact with solutions of arene in acetonitrile within a gas‐liquid microreactor. Plasma activation of acetonitrile generated cyano radicals, enabling a catalyst‐free C‐H cyanation of arenes.
Pierre Dedieu   +4 more
wiley   +1 more source

Theoretical analysis of the flash photolysis kinetics of purple membrane

open access: yes, 2000
The laser flash excitation and thermal relaxation kinetics of purple membrane is theoretically analyzed using the rate equations of multiple states system.
Yao, BL, Xu, DL, Hou, X
core  

Structure–Activity Relationships for Carbonyl Photolysis

open access: yes, 2020
Photolysis drives the formation of all radicals in the atmosphere. Carbonyls are photoactive and ubiquitous in the atmosphere as the oxidative degradation products of all volatile organic compounds. The structural diversity of carbonyls poses a challenge
Rowell, Keiran
core   +1 more source

Double Thionation of 4‐Dimethylaminophthalimide Leads to the Development of a Highly Effective Photosensitizer

open access: yesChemistry – A European Journal, EarlyView.
We report on the photophysical properties and electronic relaxation mechanisms of 4‐dimethylaminophthalimide (DMAP) and thio‐4‐dimethylaminophthalimide (SDMAP). While DMAP is fluorescent, SDMAP shows negligible fluorescence due to ultrafast intersystem crossing to a long‐lived triplet state that decays in 3.4 ± 0.05 µs.
Chris Acquah   +8 more
wiley   +1 more source

The Role of Iron‐Hyponitrite Intermediates in Biology and Insights From Synthetic Model Complexes

open access: yesChemistry – A European Journal, EarlyView.
Despite the difference in active site architecture, NO reduction by different NOR enzymes is expected to be linked by a common intermediate: hyponitrite (N2O22−). However, experimentally, very little is known about the coordination chemistry of iron with hyponitrite and the expected Fe‐hyponitrite intermediates.
Michael O. Lengel, Nicolai Lehnert
wiley   +1 more source

Home - About - Disclaimer - Privacy