a
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
E-mail: ygy@fjirsm.ac.cn
;
Fax: +86-591-83710051
;
Tel: +86-591-83710051
b
MOE Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing 100081, China