1 http://pubs.acs.org/doi/abs/10.1021/ja1038819

2 http://pubs.acs.org/doi/abs/10.1021/ja103901e

3 http://pubs.acs.org/doi/abs/10.1021/ja1034123

4 http://pubs.acs.org/doi/abs/10.1021/ja102303s


hi-res pdf 多谢！