[1] DS Degree Coll, Dept Chem, Sambalpur 768214, Orissa, India
[2] IES Univ, Dept Basic Sci, IITM, Bhopal 462044, Madhya Pradesh, India
[3] Chandigarh Univ, Univ Ctr Res & Dev UCRD, Dept Phys, Mohali, Punjab, India
[4] CIPET Inst Petrochem Technol IPT, Bhubaneswar, Orissa, India
[5] Indian Inst Technol Ropar, Dept Chem, Nangal Rd, Rupnagar 140001, Punjab, India
[6] Pomurska Acad Sci Union, Lendavska 5a, Murska Sobota 9000, Slovenia
[7] Jozef Stefan Inst, Jamova 39, Ljubljana 1000, Slovenia