1. Institute of Theoretical Chemistry
2. State Key Laboratory of Supramolecular Structure and Materials
3. Jilin University
4. Changchun 130021, China
5. Eduard-Zintl-Institut für Anorganische und Physikalische Chemie
6. State Key Laboratory of Polymer Physics and Chemistry
7. Changchun Institute of Applied Chemistry
8. Chinese Academy of Sciences
9. Changchun 130022, China