Synthesis, spectral characterization and antioxidant activity of a supramolecular copper (II) complex obtained from pyridine-2, 6- dicarboxylic acid and 3,5-diamino - 1, 2, 4-triazole.

Abstract

A supramolecular copper (II) compound, (HdatrzH)[Cu (Hdipic) (dipic)].3H2O (1) (Hdatrz = 3,5-diamino-1,2,4- triazole, dipic = pyridine- 2,6-dicarboxylic acid) was synthesized and characterized by elemental analysis, Fourier transformed infrared spectroscopy (FT-IR), UV-Visible spectroscopy, mass spectrometry, proton nuclear magnetic resonance (1H-NMR), thermal analysis, and magnetic susceptibility measurement. The room temperature magnetic susceptibility measurement showed a magnetic moment of 1.67 BM for compound 1, deviating slightly from the spin-only magnetic moment value for Cu (II) ion. Thermogravimetric analysis revealed three decomposition stages for compound 1. The compound showed no activity against all the tested microorganisms. Interestingly, compound 1 exhibited a significant radical scavenging activity (RSA).