[1] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China
[2] Univ Munster, Inst Phys, D-48149 Munster, Germany
[3] Univ Munster, Ctr Nanotechnol C198eNTech, D-48149 Munster, Germany
[4] NE Forestry Univ, Coll Sci, Dept Chem, Harbin 150040, Peoples R China