Cu2+-driven metallo-supramolecular self-assembly and its application in sensing of hydroxyl ion

The dinuclear copper complex receptor (R) was synthesized using the ligands 4-(di-ethyl-amino)-2-hydroxybenzaldehyde and benzo [d] thiazol-2-amine. The single crystal X-ray analysis of the homoleptic bis(mu-oxo) dicopper (II) complex indicated that the ligands are coordinated in an anti-configuration to each other and have adopted a distorted square-pyramidal environment around the Cu2+ ion. The X-ray solid state structural analysis and DFT reveals no direct Cu center dot center dot center dot Cu linkage within the complex. The anion recognition ability of the R was studied by UV-vis and fluorescence spectroscopic in acetonitrile. The results indicated that the new complex R displays a sturdy sympathy and selectivity for hydroxide ion. [GRAPHICS] .