Institution: | 1.Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran ;2.Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran ;3.Department of Chemistry, Zanjan Branch, Islamic Azad University, Zanjan, Iran ;4.Institute of Physics of the Czech Academy of Sciences, 182 21, Prague 8, Czech Republic ; |