Synthesis of new generation calix[4]arene derivatives as fluorescence chemosensor and its theoretical calculation

Calixarenes are among the commonly preferred molecules of the supramolecular chemistrysince they are easily synthesizable and functionalizable.In this study, new types of calix[4]arenderivatives containing benzylisoquinoline groups were synthesized and the structures of theobtaining compounds were characterized by spectroscopic techniques such as 1H-NMR, 13CNMR. Synthesized calix[4]aren derivatives towards some metal cations (Ag+, Al+3, Ba+, Ca+2,Co+2, Cs+2, Fe+3, Hg+2, Li+, Pb+2, Mg+2, Mn+2, Na+, Cu+2, Ba+2, Ni+2, Zn+2, Sr+2 showedfluorescence behaviors ve these behaviors were investigated utilizing UV-visspectrophotometer and fluorescence spectroscopic techniques.It was found out according tothe obtained results that it got complexed in 1:1 ratio as stoichiometric as a result of itsactivation with aqueous solutions of Cu+2 and Fe+2 ions and responded as an off-on sensor. Inthis regard, a highly selective and sensitive sensor was developed. Theoretical studies werealso conducted in addition to the achieved experimental results. The bonding of metal ionswas also calculated theoretically by using Gaussian 09 and GaussView 5.0.8.