Structural considerations on acridine/acridinium derivatives: Synthesis, crystal structure, Hirshfeld surface analysis and computational studies
作者:Michał Wera、Piotr Storoniak、Illia E. Serdiuk、Beata Zadykowicz
DOI:10.1016/j.molstruc.2015.10.041
日期:2016.2
spatial arrangements of the acridine/acridinium derivatives under scrutiny here. Additionally, computational methods have been used to compare the intermolecular interactions in the crystal structures of the investigated compounds. Computations have confirmed the great contribution of dispersive interactions for crystal lattice stability in the case of 9-substituted acridine and electrostatic interactions
Lattice energetics and thermochemistry of acridine derivatives and substituted acridinium trifluoromethanesulphonates
作者:Beata Zadykowicz、Piotr Storoniak
DOI:10.1007/s10973-017-6306-4
日期:2017.9
10-methylacridinium trifluoromethanesulphonate ions, obtained by the DFT method, and the corresponding enthalpies of sublimation and/or crystal lattice enthalpies, the enthalpies of formation of the compounds in the solid phase were predicted. For compounds whose crystal structures are known, experimental enthalpies of sublimation correspond reasonably well to crystal lattice enthalpies predicted theoretically as
Compounds Related to Acridine. XIII. Reactions of 9-Vinyl- and 9-Ethynylacridine with<i>C</i>,<i>N</i>-Diarylnitrones
作者:Otohiko Tsuge、Akiyoshi Torii
DOI:10.1246/bcsj.49.1138
日期:1976.4
The reaction of 9-vinylacridine (1) with C,N-diarylnitrones (3) in xylene under reflux afforded 5-(9-acridinyl)-2,3-diarylisoxazolidines (4) and/or 9-acridinyl styryl ketones (5). On heating isoxazolidines 4 were readily converted into the styryl ketones 5 with the elimination of anilines: this is a new type of thermal decomposition of isoxazolidine ring. However, thermal decomposition of 3-(9-acridinyl)-2
Compounds Related to Acridine. VIII. Reaction of 9-Vinylacridine with<i>p</i>-Substituted Nitrosobenzenes
作者:Otohiko Tsuge、Akiyoshi Torii
DOI:10.1246/bcsj.45.3187
日期:1972.10
In the presence of hydrochloric acid, 9-vinylacridine reacts with nitrosobenzenes having electron-donating groups such as p-nitroso-N,N-dialkylaminoaniline and p-methylnitrosobenzene to yield a four-membered oxazetidine, as the first example of a non-fluorinated oxazetidine ring system. A new 2:2 adduct, to which the perhydro-1,2,7-oxadiazepine structure is assigned tentatively, is formed in the reaction
Method for quantitatively measuring the concentration of chemicals in aqueous solution
申请人:SNF HC
公开号:US10900959B2
公开(公告)日:2021-01-26
The disclosure relates to a method for quantitatively measuring concentration in an aqueous solution of a water soluble polymer that is functionalized with at least one tracer, wherein the method involves impregnating a flow assay with a test area, introducing the flow assay into a test reader, and using the test reader to compare test data to a calibration curve so as to determine the concentration of the water-soluble polymer. This method allows the determination of residuals concentration in aqueous solution recovered from different industries, including oil and gas produced water, mining fluids, industrial water systems, and water treatment applications.