Results 31 to 40 of about 44,378 (285)

Quantum-chemical calculations of the structure and electron transitions of multimolecular films

open access: yesEurasian Physical Technical Journal, 2019
Dynamic and static quenching of fluorescence occurs upon contact interaction of oxygen molecules. Of the simplest models of the complex of oxygen and anthracene, a complex consisting of one molecule of oxygen and anthracene molecule is proposed. Quantum-
K.B. Kopbalina   +2 more
doaj   +1 more source

ROS-Scavenging Enzymes as an Antioxidant Response to High Concentration of Anthracene in the Liverwort Marchantia polymorpha L

open access: yesPlants, 2021
Marchantia polymorpha L. responds to environmental changes using a myriad set of physiological responses, some unique to the lineage related to the lack of a vascular- and root-system. This study investigates the physiological response of M.
Nahuel Spinedi   +11 more
doaj   +1 more source

Anthracene-1,4,9,10-tetraone [PDF]

open access: yesActa 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

Double Ring-Closing Approach for the Synthesis of 2,3,6,7-Substituted Anthracene Derivatives [PDF]

open access: yes, 2020
Anthracene derivatives have been used for a wide range of applications and many different synthetic methods for their preparation have been developed. However, despite continued synthetic efforts, introducing substituents in some positions has remained ...
Florian, Glöcklhofer   +4 more
core   +2 more sources

Preparation of Some Meso-Disubstituted Anthracenes [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1990
The synthesis of some 9,10-disubstituted anthracene derivatives are described. 9,10-Bis(2-bromoethyl) anthracene 4,9,10-Bis (2-cyanoethyl) anthracene 5 and 9,10-Bis (4-hydroxybutyl) anthracene 11 are synthesized for the first time.
Mahmoud Sharifi Moghadam
doaj  

Ratiometric Singlet Oxygen Sensor Based on BODIPY-DPA Dyad

open access: yesMolecules, 2022
Compounds sensitive to reactive oxygen species are widely used in the study of processes in living cells and in the development of therapeutic agents for photodynamic therapy.
Alexey A. Pakhomov   +9 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

Structure and luminescent property of a Sm3+ complex containing benzoyltrifluoroacetone and 1,2-bis[(anthracen-9-ylmethyl)amino]ethane ligands

open access: yesVietnam Journal of Science, Technology and Engineering, 2021
The synthesis, structure, and luminescent properties of a samarium(III) complex (A2) containing benzoyltrifluoroacetone (HTFPB) and 1,2-bis[(anthracen-9-ylmethyl)amino]ethane (BAAE2) ligands are herein reported.
Thi Hien Dinh, Minh Hai Nguyen
doaj   +1 more source

Photoconductivity of Naphthalene and Anthracene [PDF]

open access: yesNature, 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

Anthracene-9,10-diones as Potential Anticancer Agents:  Bacterial Mutation Studies of Amido-Substituted Derivatives Reveal an Unexpected Lack of Mutagenicity

open access: yes, 2016
Fifteen anthracene-9,10-dione (“anthraquinone”) derivatives with (ω-aminoalkyl)carboxamido substituents at the 1-, 2-, 1,4-, or 2,6-ring positions were tested for bacterial mutagenicity in reverse-mutation assays using Salmonella typhimurium frameshift ...
Christopher Crofton-Sleigh (3022122)   +4 more
core   +2 more sources

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