1. Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China.
2. ZJU-Hangzhou Global Scientific and Technological Innovation Center–Hangzhou Zhijiang Silicone Chemicals Co. Ltd. Joint Lab, Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, P. R. China.
3. Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
4. Instrumentation and Service Center for Physical Sciences, Westlake University, Hangzhou 310024, P. R. China.
5. Department of Chemistry, The University of Texas at Austin, Austin, TX 78712-1224, USA.