1. Department of Chemistry, School of Science, Gujarat University, Ahmedabad 380009, India
2. Department of Physics, Mohanlal Sukhadia University, Udaipur 313001, India
3. The Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 3200003, Israel
4. Department of Chemistry, K.K. Shah Jarodwala Maninagar Science College, Gujarat University, Ahmedabad 380009, India