1. 1Department of Chemistry, Government College of Engineering, Salem -11, Tamilnadu, India.
2. 2Department of Chemistry, Kandaswami Kandar’s College, Velur, Namakkal, Tamilnadu, India.
3. 3Department of Chemistry, Sri Vasavi College of Arts and Science, Erode, Tamilnadu, India.
4. 4Department of Chemistry, Thiruvallur Government Arts College, Rasipuram, Namakkal, Tamilnadu, India.