1. Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jln Universiti, Bandar Barat KamparPerak 31900 Malaysia
2. Liquid Crystal Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia MindenPenang11800Malaysia
3. Department of Physics, Acharya Nagarjuna UniversityNagarjuna Nagar522 510India