We convey our sincere thanks for the publication of this special University of Michigan issue of Chinese Chemical Letters.The idea to publish this special issue came from a meeting between Dr.Zhan Chen(Professor of Chemistry at the University of Michigan)and Dr.Huanfang Guo(associate editor-in-chief,Chinese Chemical Letters)when Dr.Guo visited the University of Michigan during May2014.On behalf of Prof.Xuhong Qian,the editor-in-chief of Chinese We convey our sincere thanks for the publication of this special University of Michigan issue of Chinese Chemical Letters. The idea to publish this special issue came from a meeting between Dr.Zhan Chen (Professor of Chemistry at the University of Michigan) and Dr.Huanfang Guo (associate editor-in-chief, Chinese Chemical Letters) when Dr. Guo visited the University of Michigan during May2014. On behalf of Prof. Xuhong Qian, the editor-in-chief of Chinese