Results 21 to 30 of about 3,549 (288)
Beilstein Journal of Organic Chemistry, 2009 The title compound, 4,13-bis[(1E,3E)-4-(9-anthracenyl)buta-1,3-dienyl][2.2]paracyclophane (2), prepared in 35% overall yield from [2.2]paracyclophane, absorbs light at λmax = 400 nm with a tail down to 480 nm. By irradiation into this band, 2 generates a
Henning Hopf +5 more
doaj +1 more source
Comparative study of oxidative stress caused by anthracene and alkyl-anthracenes in [PDF]
Environmental Health and Toxicology, 2018 Oxidative stress was evaluated for anthracene (Ant) and alkyl-Ants (9-methylanthracene [9-MA] and 9,10-dimethylanthracene [9,10-DMA]) in Caenorhabditis elegans to compare changes in toxicity due to the degree of alkylation.
Ji-Yeon Roh, Pil-Gon Kim, Jung-Hwan Kwon
doaj +1 more source
Ferrocenyl-substituted fluorescent anthracenes and anthraquinones [PDF]
, 2004 The synthesis of a range of ferrocene-substituted ethynylanthracenes and 1,1'-(bis-(2-ethenylanthraquinoyl)ferrocene has been achieved. The synthesis relies on the production of ferrocenylanthraquinones as key precursors.
Thomas, Dafydd A. +17 more
core +1 more source
Molecules, 2009 A variety of heteroaromatic compounds, such as substituted pyridines, pyrazoles, indoles, 2-substituted imidazoles, 2-substituted imidazoles, 2-arylbenzazoles and pyrimidin-2(1H)-ones are synthesized by oxidative aromatization using the activated carbon ...
Masahiko Hayashi, Yuka Kawashita
doaj +1 more source
Anthracene-1,4,9,10-tetraone [PDF]
Acta Crystallographica Section E Structure Reports Online, 2013 The asymmetric unit of the title compound, C14H6O4, contains three independent molecules (A,BandC). In moleculeC, there are two disordered sets of two carbonyl O atoms [occupancies = 0.643 (11) and 0.357 (11)]. All three molecules are non-planar due to repulsion between two O atoms inperipositions on the anthracene ring, showing a slight difference in ...
Chitoshi Kitamura, Takeshi Kawase
openaire +3 more sources
Fluorescence of Solid Anthracene [PDF]
Nature, 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
Pyramidalisierte Brückenkopfolefine als reaktive Zwischenstufen
CHIMIA, 1981 The generation of tricyclo [4.1.0.02,7]hept-1(7)-ene (8), of tricyclo[3.1.0.02,6]hex-1(6)-ene (9), and of 1,7- and 1,5-dehydro-quadricyclane (43a and b) as reactive intermediates is described.
Günter Szeimies
doaj +1 more source
Highly Substituted 10-RO-(hetero)acenes—Electric Properties of Vacuum-Deposited Molecular Films
Molecules, 2023 The functionalization of the aromatic backbone allows the improvement of the electrical properties of acene molecules in the amorphous layered structures of organic thin films.
Bernard Marciniak +7 more
doaj +1 more source
CHIMIA, 1988 Substituents at C-12 distinctively influence the electron-transfer behavior of dibenzoheptafulvenes 1 as demonstrated by cyclovoltammetry and by chemical oxidation.
Reinhard Hahn, Josef Salbeck, Jörg Daub
doaj +1 more source
Photoconductivity of Naphthalene and Anthracene [PDF]
Nature, 1949 RECENT studies1 of the mobility ('metallic' character) of the unsaturation electrons within molecules containing conjugated double-bond systems suggest that solid conjugated compounds should exhibit the phenomenon of photoconductivity, provided that the unsaturation electrons can acquire enough energy to penetrate the potential barriers between ...
N S, BAYLISS, J C, RIVIERE
openaire +2 more sources