About: Potentiometric and Voltammetric Study of 6-Benzylaminopurine and Its Derivatives

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The protonation-deprotonation equilibrium of 6–benzylaminopurine (6–BAP) and its derivatives was studied by potentiometry and voltammetry. The effect of Cl or OCH3 group position in 2', 3' and 4' of the benzene ring of 6–BAP on both pKa values was investigated. To determine the enthalpy and entropy, the temperature dependence of pKa was employed. It was found that with increasing temperature the pKa decreased. In comparison with 6–BAP the chloro- or methoxy- group on the benzene ring resulted in pKa increase, and in the case of both derivatives the pKa values decreased with increasing distance of the chloro- or methoxy- moiety from the aminopurine structure. The first pKa values were also determined by linear sweep voltammetry (LSV) and elimination voltammetry with linear scan (EVLS). New approaches were shown not only for the determination of pKa from voltammetric titration curves but also for the evaluation of the reduction processes of benzylaminopurines. The protonation-deprotonation equilibrium of 6–benzylaminopurine (6–BAP) and its derivatives was studied by potentiometry and voltammetry. The effect of Cl or OCH3 group position in 2', 3' and 4' of the benzene ring of 6–BAP on both pKa values was investigated. To determine the enthalpy and entropy, the temperature dependence of pKa was employed. It was found that with increasing temperature the pKa decreased. In comparison with 6–BAP the chloro- or methoxy- group on the benzene ring resulted in pKa increase, and in the case of both derivatives the pKa values decreased with increasing distance of the chloro- or methoxy- moiety from the aminopurine structure. The first pKa values were also determined by linear sweep voltammetry (LSV) and elimination voltammetry with linear scan (EVLS). New approaches were shown not only for the determination of pKa from voltammetric titration curves but also for the evaluation of the reduction processes of benzylaminopurines. (en)
Title	Potentiometric and Voltammetric Study of 6-Benzylaminopurine and Its Derivatives Potentiometric and Voltammetric Study of 6-Benzylaminopurine and Its Derivatives (en)
skos:prefLabel	Potentiometric and Voltammetric Study of 6-Benzylaminopurine and Its Derivatives Potentiometric and Voltammetric Study of 6-Benzylaminopurine and Its Derivatives (en)
skos:notation	RIV/00216224:14310/12:00059370!RIV13-MSM-14310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LC06035), Z(MSM0021622412)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Trnková, Libuše Lubal, Přemysl Pilařová, Iveta
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	160364
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/12:00059370
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Benzylaminopurines; EVLS; potentiometry; voltammetry; enthalpy; entropy; protonation constant (en)
http://linked.open.../riv/klicoveSlovo	entropy potentiometry Benzylaminopurines EVLS enthalpy protonation constant voltammetry
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[88F47CF62987]
http://linked.open...i/riv/nazevZdroje	Electroanalysis
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre of Biophysical Chemistry, Bioelectrochemistry and Bioanalysis. New Tools for Genomics, Proteomics and Biomedicine.
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	24
http://linked.open...iv/tvurceVysledku	Lubal, Přemysl Trnková, Libuše Pilařová, Iveta
http://linked.open...ain/vavai/riv/wos	000299738900021
http://linked.open...n/vavai/riv/zamer	Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)
issn	1040-0397
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/elan.201100491
http://localhost/t...ganizacniJednotka	14310

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