Coordination complexes of Schiff base ligand 5-Diethylamino 2-thiazole 2-yliminomethyl phenol with MnII, CoII, NiII and CuII ions; phenoxazinone synthase like activity of CuII complex
| Main Authors: | Shipra Sagar, Subhendu Naskar |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5603310 |
Daftar Isi:
- Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi-835 215, Jharkhand, India E-mail : subnaskar@yahoo.co.in Fax : 91-651-2275401 Manuscript received 31 June 2016, revised 17 October 2016, accepted 24 October 2016 A new Schiff base ligand, 5-diethylamino 2-thiazole 2-yliminomethyl phenol (HL) has been synthesized by condensation of 2-aminothaizole with 4-diethylaminosalicylaldehyde. A series of complexes of first row transition metal ions (Cu2+, Mn2+, Co2+ and Ni2+) with the ligand are reported here. The ligand and the metal complexes have been characterized through spectroscopic techniques e.g. NMR, ESIMS, FTIR, UV-Vis spectroscopy; elemental analysis, cyclic voltammetry and differential pulse voltammetry. The reported CuII complex were examined in vitro for the catalytic oxidation of 2-aminophenol to 2-aminophenoxazine-3-one. The catalytic activity of complex was investigated with UV-Vis spectrophotometry in MeOH medium. Kinetic parameters for the catalytic activity of the complexes are as follows : Vmax = 1.2×10–8 M s–1 , Kcat = 4.3 h–1 , KM = 3.304×10–4 M.