1. College of Chemical
Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of
China
2. Department
of Inorganic
Chemistry, University of Pécs, Ifjúság útja 6, H-7624 Pécs, Hungary
3. János Szentágothai Research Center, Ifjúság útja 20,
H-7624 Pécs, Hungary