[1.1.1]Cryptand: directions for its use as a variable-pH kinetic molecular device

Autor:	Carmelo Lo Vecchio, Marcel Maeder, D. G. Lister, Giuseppe Alibrandi
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	Work (thermodynamics) Range (particle radiation) Proton Chemistry Cryptand Thermodynamics General Chemistry Chemical reactor Interference (wave propagation) Kinetic energy Catalysis Burette cryptand variable-pH kinetics Materials Chemistry
Popis:	The [1.1.1]cryptand is a proton sponge able to change slowly and almost linearly the pH of a solution (range 4–10) in such a way that it can be used as a chemical device in the automatic control of a variety of pH-sensitive processes under variable-pH conditions. A simple mathematical model describing its behaviour, based on the fundamental work by Lehn's group, and computer simulation carried out for different values of concentration and starting pH (in agreement with produced experimental data) enable the visualization of the pH-time profiles for any possible experimental conditions and provide directions for its use as a molecular burette. The interference with species present in the reaction vessel and acting as buffers is also discussed and measures are suggested for avoiding problems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e90a8106eaa1a8e5f47bc9fe20548c0f http://hdl.handle.net/11570/2736768 Zobrazit plný text záznamu