摘要
The copyright to this article is transferred to Chinese Chemical Society and Institute of Chemistry, CAS and Springer （respective to owner if other than Chinese Chemical Society and Institute of Chemistry, CAS and Springer and for U.S. government employees： to the extent transferable） effective if and when the article is accepted for publication. The author warrants that his/her contribution is original and that he/she has full power to make this grant. The author signs for and accepts respons b ty for releasing this material on behalf of any and all co-authors. The copyright transfer covers the exclusive right and license to reproduce, publish distribute and archive the article in all forms and media of expression now known or developed n the future, including reprints, translations photographic reproductions, microform, electron c form （offline, online） or any other reproductions of similar nature.
The copyright to this article is transferred to Chinese Chemical Society and Institute of Chemistry, CAS and Springer （respective to owner if other than Chinese Chemical Society and Institute of Chemistry, CAS and Springer and for U.S. government employees： to the extent transferable） effective if and when the article is accepted for publication. The author warrants that his/her contribution is original and that he/she has full power to make this grant. The author signs for and accepts respons b ty for releasing this material on behalf of any and all co-authors. The copyright transfer covers the exclusive right and license to reproduce, publish distribute and archive the article in all forms and media of expression now known or developed n the future, including reprints, translations photographic reproductions, microform, electron c form （offline, online） or any other reproductions of similar nature.
