1. a Department of Chemistry, School of Chemical Sciences , Jnana Sahyadri, Kuvempu University , Shankaraghatta – 577 451, Shimoga, Karnataka, India
2. b Department of Industrial Chemistry, School of Chemical Sciences , Jnana Sahyadri, Kuvempu University , Shankaraghatta – 577 451, Shimoga, Karnataka, India
3. c Department of Chemistry , Rajiv Institute of Technology , Hassan – 573 201, Karnataka, India