Results 31 to 40 of about 7,256 (182)
Identification of the state of the soil-plant systems on the RUDN-University campus (based on PAH concentrations) [PDF]
E3S Web of Conferences, 2020 The environmental state of soil-plant systems under the condition of technogenic pressure has been demonstrated on the example of the social significant territory in the city of Moscow – the campus of the RUDN University.
Khaustov Aleksandr +4 more
doaj +1 more source
Orientation of Disubstituted Fluoranthene Derivatives [PDF]
Nature, 1950 ALTHOUGH fluoranthene is readily attacked by bromine, etc., none of the disubstituted products has been rigidly orientated. Tobler et al.1 obtained a fluoranthene disulphonic acid, which on fusion with alkali followed by oxidation gave a coloured ‘chin-hydronartigen’ compound, and they rightly pointed out that a quinoid product would mean that ...
N, CAMPBELL, W W, EASTON, J, RAYMENT
openaire +2 more sources
Frontiers in Marine Science, 2019 The marine flagellate Tisochrysis lutea (T-iso), with a global distribution, is one of the most common microalgae used as natural food in aquaculture. In recent years T-iso has also been increasingly used in toxicity testing, although it is not included ...
Tania Tato, Ricardo Beiras
doaj +1 more source
Macedonian Journal of Chemistry and Chemical Engineering, 2012 Within a systematic study of cyclic conjugation in the benzo-annelated derivatives of acenaphthylene and fluoranthene, a general regularity was discovered, named phenyl-cyclopentadienyl rule (PCP rule).
Jelena Đurđević, Ivan Gutman
doaj +1 more source
Angewandte Chemie International Edition, EarlyView.Pd‐catalyzed C–H arylation of polycyclic aromatic hydrocarbons (PAHs) with various aryltrimethylsilanes enables the preparation of structurally complicated arylated PAHs, which can be further transformed to nanographenes in a manner of two‐step annulative π‐extension (APEX) reaction.
Honami Katsuragawa +5 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Reactions of 10‐mesityl‐1,8‐diphenylanthracene with DDQ/TfOH produced three products via sequential formation of a five‐ or seven‐membered ring. Unexpectedly, the triply cyclized product with a rubicene substructure was formed through cyclization involving 1,2‐methyl shift.
Tatsuhiro Sasaki +2 more
wiley +1 more source
Kekulé Structures in Fluoranthenes
Zeitschrift für Naturforschung A, 2010 Fluoranthenes are polycyclic conjugated molecules consisting of two benzenoid fragments, connected by two carbon-carbon bonds so as to form a five-membered ring. Fluoranthenes possessing Kekul´e structures are classified into three types, depending on the nature of the two carbon-carbon bonds connecting the two benzenoid fragments.
openaire +2 more sources
Illuminating Olympicenes: Insights Into Anti‐Kasha Photophysics in Polycyclic Aromatic Hydrocarbons
Chemistry – A European Journal, EarlyView.Compact olympicene‐based chromophores reveal unexpectedly rich excited‐state behavior, including dual fluorescence, excitation‐dependent emission, and anti‐Kasha‐type emission. Tunable locally excited and intramolecular charge‐transfer states emerge from subtle structural changes, expanding the design rules for polycyclic aromatic chromophores and ...
Wenlong Li +5 more
wiley +1 more source
Sustainable Chemistry, 2021 Brown carbon is a type of carbonaceous aerosol with strong light absorption in the ultraviolet and visible wavelengths that leads to radiative forcing.
Patricia González-Berdullas +1 more
doaj +1 more source