Influence of isomeric halogen derivatives on surface potential and surface tension of aqueous solutionsP-chlorophenol and p-chlorocresol increase the negative potential of the air/water boundary as a result of the negative electric field of halogen directed to the gaseous phase (permittivity 1). ...
Flexible organic materials that exhibit dynamic ultralong room temperature phosphorescence (DURTP) via photoactivation have attracted increasing research interest for their fascinating functions of reversibly writing-reading-erasing graphic information i
Polyfluoroalkyl derivatives of silicon. Part XIII. Preparation and pyrolysis of trifluoro(halogenovinyl)silanes and (1-fluoro-2-halogenoethyl)trihalogenosilanes Treatment of 1-chloro-2-fluoroethyl- or 1,2-dichloroethyl-trichlorosilane with quinoline gives trichloro(1-chlorovinyl)silane; trichloro(1...
offers tailor-made solutions in the areas of polymer additives, industrial chemicals and ethanol. Brüggemann specialises in the development and production of high-performance additives for engineering thermoplastics with a focus on polyamides, as well as zinc derivatives and sulfur-based...
Bile acid derivatives from a sponge-associated bacterium Psychrobacter sp. Arch. Pharmacal Res. 32, 857–862 (2009). 30. Chen, X. & van Pee, K. H. Catalytic mechanisms, basic roles, and biotechnological and environmental significance of halogenating enzymes. Acta Biochim. Biophys. Sin. (...
(4), IC50s in the low nanomolar range were achieved forS. aureusand eightfold lower MICs were observed on all three strains. The breakthrough was accomplished withp-bromo (5) andp-iodo phenyl (6) derivatives that show strong inhibitory activities against DNA gyrase from both organisms (S. ...
A variety of orthoborate-based lithium salts and their derivatives such as lithium bis[1,2-benzenediolato(2-)-O,O′]borate Li[BBB]15, lithium bis[2,3-naphtha-lene-diolato(2-)-O,O′]borate Li[BNB]16, lithium bis[2,2-biphenyldiolato(2-)- O,O′]borate Li[BBPB]17, lithium bis...
O-Halogenocyclopentyl S-alkyl (di)thiphosphoric(phosphonic) acid ester derivatives of the general formula (I) ##STR1## in which R1 represents alkyl, alkoxy or the radical ##STR2## R3 represents hydrogen or alkyl and R4 represents hydrogen, alkyl, --COH (formyl) or optionally halogen-subst...
Exemplary negative ions of the invention include dodecacyanododecaborate [B12(CN)122−] as well as its derivatives where one of the B atoms is replaced by C atom, e.g. [CB11(CN)122− and CB11(CN)12−]. Dodecacyanododecaborate is created by replacing H atoms with CN molecules in...
In one embodiment, a monomer of formula (V) can be p-hydroxybenzoic acid or one of its derivatives Another monomer as may be charged to the system can have a structure of the formula (VI): One example of a monomer of formula (VI) is 2-hydroxynaphthalene-6-carboxylic acid. Monomers of...