- Journal of the Turkish Chemical Society Section A: Chemistry
- Vol: 10 Issue: 1
- Synthesis, Spectral Characterization, Crystal Structure, and Antioxidant Properties of novel Palladi...
Synthesis, Spectral Characterization, Crystal Structure, and Antioxidant Properties of novel Palladium(II) Complex from ONS Donor 1,5-bis(2-hydroxybenzylidene)thiocarbohydrazone
Authors : Yeliz Kaya
Pages : 129-138
Doi:10.18596/jotcsa.1194323
View : 3 | Download : 1
Publication Date : 2023-02-28
Article Type : Research
Abstract :A new Pd(II) complex, [Pd(PPh3)(L)] (L = 1,5-bis(2-hydroxybenzylidene)thiocarbohydrazone, PPh3 = triphenylphosphine), was synthesized and characterized by FTIR, 1H NMR and UV-Vis spectroscopies and elemental analysis. The molecular structure of [Pd(PPh3)(L)] was confirmed by the single-crystal X-ray diffraction technique. Palladium ion has distorted square planar geometry according to X-ray diffraction studies. The free thiocarbohydrazone (L), potentially a pentadentate ONSNO donor, acted as a tridentate ONS donor. The antioxidant capacity of the free thiocarbohydrazone and Pd(II) complex was determined using the CUPRAC (cupric reducing antioxidant capacity) method. Also, the DPPH method was used to test the free radical scavenging activity of the free thiocarbohydrazone and Pd(II) complex. Antioxidant activity studies showed that free thiocarbohydrazone exhibited better activity than Pd(II) complex.Keywords : Thiocarbohydrazone, Palladium(II) complex, Triphenylphosphine, Crystal structure, Antioxidant activity