1. Department of Chemistry, Indian Institute of Technology Patna, Patna 801106, India
2. Department of Chemistry, Indian Institute of Science Education and Research Tirupati, Tirupati 517507, India
3. School of Physics and Physical Engineering, Qufu Normal University, 273165 Qufu, China
4. Department of Physics, Universidade Federal do Espírito Santo, 29075-910 Vitória, Brazil
5. Departamento de Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal