Results 21 to 30 of about 64,520 (291)
, 2022 In this manuscript, we portrayed a stereospecific synthesis of C2- and C1-symmetric pyrene-fused [7]helicene compounds 1 and 2, respectively. Compounds 1 and 2 were synthesized via a one-pot Suzuki coupling–C–H activation and two-step Suzuki coupling ...
Holger Braunschweig +7 more
core +1 more source
Use of Pyrene for Quantitative Fluorescence Observation of Li-Grease around EHL Contacts
Tribology Online, 2020 This paper presents a simple approach for the use of pyrene as fluorescence dye for the observation of the EHL contacts and behavior of lubricants without natural fluorescence properties.
David Kostal +5 more
doaj +1 more source
Vietnam Journal of Science, Technology and Engineering, 2023 A conjugated molecular triad based on pyrene and 9,9-dioctyl-9H-fluorene has been successfully synthesised via the Suzuki cross-coupling reaction with yield of 48%.
Thao Phuong Le Nguyen +8 more
doaj +1 more source
Bacillus subtilis is a Potential Degrader of Pyrene and Benzo[a]pyrene [PDF]
International Journal of Environmental Research and Public Health, 2005 Polycyclic Aromatic Hydrocarbons (PAHs) are a group of compounds that pose many health threats to human and animal life. They occur in nature as a result of incomplete combustion of organic matter, as well as from many anthropogenic sources including cigarette smoke and automobile exhaust.
Rochelle D. Hunter +4 more
openaire +2 more sources
The existence of polycyclic aromatic hydrocarbons in commercially grilled beef kofta and chicken meat in El-Gharbia governorate markets [PDF]
Benha Veterinary Medical Journal, 2023 Polycyclic aromatic hydrocarbons are considered as harmful organic compounds that can occur during the heat treatment of meat, particularly grilling or barbecuing. The purpose of this research is to evaluate the degree of contamination of
Walid Arab +3 more
doaj +1 more source
Pyrene-based color-tunable dipolar molecules: Synthesis, characterization and optical properties [PDF]
, 2018 © 2018 Elsevier Ltd A controllable regioselective approach to achieve dipolar functionalization at the active sites (1,3-positions) and K-region (5,9-positions) of pyrene is demonstrated.
Thamina Akther (7165040) +7 more
core +2 more sources
Acclimation of Culturable Bacterial Communities under the Stresses of Different Organic Compounds
Frontiers in Microbiology, 2018 The phylogenetic diversity of bacterial communities in response to environmental disturbances such as organic pollution has been well studied, but little is known about the way in which organic contaminants influence the acclimation of functional ...
Hui Wang +7 more
doaj +1 more source
Sepiolite promotes photodegradation of pyrene under visible light
Ecotoxicology and Environmental Safety, 2023 Mechanochemistry and photocatalysis are emergent technologies for the remediation of polycyclic aromatic hydrocarbons (PAHs) in soils. In this work, mechanochemistry and photocatalysis are combined for pyrene degradation.
Gema Marcelo +4 more
doaj +1 more source
Molecules, 2022 Pyrene molecules containing NBN-doped polycyclic aromatic hydrocarbons (PAHs) have been synthesized by a simple and efficient intermolecular dehydration reaction between 1-pyrenylboronic acid and aromatic diamine.
Hang Xiao +6 more
doaj +1 more source
Dynamic exciton localisation in a pyrene–BODIPY–pyrene dye conjugate [PDF]
Physical Chemistry Chemical Physics, 2019 The photophysics of a molecular triad consisting of a BODIPY dye and two pyrene chromophores attached in 2-position are investigated by steady state and fs-time resolved transient absorption spectroscopy as well as by field induced surface hopping (FISH) simulations.
Nina Auerhammer +7 more
openaire +3 more sources