[1] VO Chidambaram Coll, Thoothukudi 08, India
[2] Manonmaniam Sundaranar Univ, Tirunelveli 12, Tamil Nadu, India
[3] APC Mahalaxmi Coll Women, Thoothukudi, Tamil Nadu, India
[4] VO Chidambaram Coll, PG & Res Dept Chem, Thoothukudi, India
[5] Kongunadu Arts & Sci Coll, Dept Chem, Coimbatore 29, Tamil Nadu, India
[6] St Marys Coll Autonomous, Dept Chem, Thoothukudi, India