Duan Hai-Feng, Xie Jian-Hua, Qiao Xiang-Chen, Wang Li-Xin, Zhou Qi-Lin
State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China.
Angew Chem Int Ed Engl. 2008;47(23):4351-3. doi: 10.1002/anie.200800423.