Spectrophotometric and voltammetric characterization of a novel selective electroactive chemosensor for Mg2+

• Authors: Erhan Zor , Ahmet Saf , Haluk Bingol
• Languages of publication: EN

Abstracts

EN

A novel azocalix[4]arene derivative, 5,11,17,23-tetrakis[(acetophenone)azo]-25,26,27,28-tetrahydroxycalix[4]arene (APC4), containing acetophenone azo groups at the upper rim was synthesized as a chemosensor. Its binding and sensing properties with alkali and alkaline earth metal ions (Li+, Na+, K+, Rb+, Cs+, Mg2+, Ca2+, Sr2+, Ba2+) were investigated by UV-vis spectrophotometric and voltammetric techniques. The stoichiometric ratio and the association constant were determined spectrophotometrically as 1:1 and (1.94±0.31)×105 L mol−1 for the complex between Mg2+ and the chemosensor, respectively. Moreover, it was shown that the interaction between Mg2+ and the APC4 occurred by means of the phenol groups at the lower rim by voltammetric methods. The results of spectrophotometric and voltammetric experiments showed that the chromogenic chemosensor has high selectivity towards Mg2+ among the other used metal ions, especially the interfering Ca2+ ion. [...]

Keywords

EN

Chemosensor; Azocalix[4]arene; Magnesium ion; Spectrophotometric method; Voltammetric method

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2013
• Volume: 11
• Issue: 4
• Pages: 554-560

Dates

published

1 - 4 - 2013

online

23 - 1 - 2013

Contributors

author

Erhan Zor

author

Ahmet Saf

• Chemistry Department, Ahmet Kelesoglu Education Faculty, Necmettin Erbakan University, 42099, Meram/Konya, Turkey

author

Haluk Bingol

• Chemistry Department, Ahmet Kelesoglu Education Faculty, Necmettin Erbakan University, 42099, Meram/Konya, Turkey

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Identifiers

DOI

10.2478/s11532-012-0192-1