Non aqueous titrations pdf
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A highly enantioselective abiotic receptor for malate dianion in aqueous solution.
The highly enantioselective molecular recognition of the malate dianion by a synthetic receptor in aqueous solution has been studied by potentiometric titrations, mass spectrometry (ESI-MS), diffusion measurements (PGSE NMR) and molecular modeling.
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Coulometric titrations of mineral acids, sulphonic acids, carboxylic acids, enols, imides and phenols have been carried out in t-butanol or in acetone with electrically generated tetrabutylammonium hydroxide. Either a potentiometric titration or a visual indicator end-point may be used. The amount of acid titrated ranges from 10 to 60 muequiv, and the precision and accuracy of the method are ex...
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Ti/PbO2/Sb2O3 electrode was used as indicator electrode in potentiometric and conductometric titration in aqueous solution at 298 K. The E-pH curve is linear with a slope of 0.0505 V/dec at 298 K which is close to the theoretical value 2.303RT/F (0.059 V at 298 K). The standard potential of this electrode, E, is computed with respect to the SCE as reference electrode. The recovery percentages f...
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New and versatile route for the preparation of Deferoxamine from 5-aminopentan-1-ol and their Cu(II), Ni(II), Zn(II), Co(III) and Fe(III) (11 to 15) complexes were synthesized and characterized. The mode of binding interactions of synthesized complexes 11 to 15 with CT – DNA was monitored by absorption spectral titrations, fluorescent spectral titrations and viscosity measurements. The intrinsi...
متن کاملElectrochemical anion recognition with ferrocene functionalised macrocycles.
The syntheses and characterization of two new redox active cyclam ligands ferrocenylmethyl-(6-methyl-1,4,8,11-tetraazacyclotetradec-6-yl)-amine (L3) and 1,1'-ferrocenylmethyl-bis(6-methyl-1,4,8,11-tetraazacyclotetradec-6-yl)-amine (L4) are reported. The compounds each possess a ferrocenyl group bearing one (L3) or two (L4) appended macrocycles linked by their exocyclic amino groups and the crys...
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تاریخ انتشار 2015