Results 41 to 50 of about 5,778 (287)

Assessment and Characterization of Alkylated PAHs in Selected Sites across Canada

open access: yesAtmosphere, 2022
Alkylated polycyclic aromatic hydrocarbons (alkyl-PAHs), dibenzothiophenes (DBTs), and unsubstituted polycyclic aromatic hydrocarbons (PAHs) are naturally present in fossil fuels.
Andrzej Wnorowski   +5 more
doaj   +1 more source

Diels−Alder Topochemistry via Charge-Transfer Crystals:  Novel (Thermal) Single-Crystal-to-Single-Crystal Transformations [PDF]

open access: yes, 2001
The solid-state [4+2] cycloaddition of anthracene to bis(N-ethylimino)-1,4-dithiin occurs via a unique single-phase topochemical reaction in the intermolecular (1:1) charge-transfer crystal.
Hubig, S. M.   +3 more
core   +1 more source

The design of UV absorbing systems for horticultural applications [PDF]

open access: yes, 2013
The synthesis and fluorescence behavior of a series of bis(trisilylalkyl)anthracene molecules is described. The photodegradation of these molecules under UV light has been monitored and compared to a commercially available fluorescent optical brightener.
Davis, Fred J   +3 more
core   +2 more sources

Sensitized Triplet Exciton Generation in Nanostructured Polymer Scintillators: Toward Improved γ/Neutron Discrimination

open access: yesAdvanced Functional Materials, EarlyView.
Rapid γ/neutron discrimination through PSD is achieved in liquid droplet containing nanostructured polymeric scintillator where a TTA‐active dye is dissolved. The inclusion of a properly selected and dosed sensitizer metalated porphyrin enhances discrimination sensitivity and speed by doubling the density of annihilating triplets and increasing the ...
Luca Pollice   +9 more
wiley   +1 more source

Comparative Metabolomics Study of Four Kinds of Xihu Longjing Tea Based on Machine Fixing and Manual Fixing Methods

open access: yesFoods, 2023
China Xihu Longjing tea is famous for its good flavor and quality. However, information on its related metabolites, except for flavonoids, is largely deficient. Different processing methods for China Xihu Longjing tea fixing—by machines at both the first
Hongchun Cui   +6 more
doaj   +1 more source

Fluorescence of Solid Anthracene [PDF]

open access: yesNature, 1947
THE fluorescence of solid anthracene in light of wave-length 3650 A. is changed from blue to green when very small quantities of naphthacene are present in solid solution. This is explicable by an 'exciton' mechanism whereby energy is handed on by resonance from molecule to molecule1.
E J, BOWEN, E, MIKIEWICZ
openaire   +2 more sources

Isomeric anthracene diimide polymers

open access: yesChemical Science, 2021
Two anthracene diimide (ADI) polymers with the backbone conformational isomerism, new members of aromatic diimide polymers family, have been synthesized as a class of highly promising n-type semiconductors for organic electronics.
Dandan Tu   +4 more
openaire   +3 more sources

Novel Charge-Transfer Materials via Cocrystallization of Planar Aromatic Donors and Spherical Polyoxometalate Acceptors [PDF]

open access: yes, 2000
Spherical polyoxometalates (POMs) such as M6O192- and SiM12O404- (with M = Mo or W) and planar arene donors (anthracenes and pyrenes) can be cocrystallized (despite their structural incompatibility) by attaching a cationic “anchor” onto the arene which ...
Hubig, S. M.   +4 more
core   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

open access: yesAdvanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella   +3 more
wiley   +1 more source

Medicinal uses, phytochemistry and pharmacology of Ammodaucus leucotrichus

open access: yesClinical Phytoscience, 2020
This review summarizes selected scientific evidence on phytochemistry and pharmacological properties of Ammodaucus leucotrichus. Information was gathered via the Internet (using Scopus, PubMed, Google Scholar, Elsevier, Springer, Science Direct ...
Elhassan Idm’hand   +2 more
doaj   +1 more source

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