Tetiklenmiş Floresans Özelliğe Sahip Bir Kimyasal Sensör Olarak Benzotiyazol Grubu Taşıyan Kaliksaren Sentezi

Abstract

A fluorescence probe based on calix [4]arene-benzothiazole platform was rationally designed and synthesized for the detection of chlorite ion in aqueous solution. The sensor candidate was characterized by such spectroscopic techniques as FTIR, fluorescence, 1 Hand 13 C-NMR along with HRMS analysis. During the photophysical characterization experiments, it was observed that the synthesized sensor candidate exhibited weak fluorescence while its chlorite detection created a strong blue fluorescence facilitating sensitive detection. Besides, the related chlorite probe possessed a large Stokes shift (158 nm) with large pseudo Stoke's shift within the value of 242 nm that enables more accurate detection among other tested ions. Considering that chlorite anion is formed from chlorine dioxide as a result of reduction, and the importance of on-site monitoring of the concentration range regulated by many countries, it is obvious that our sensor has presented a convenient detection option as an alternative method to fulfil the daily monitoring requirements.