Submitted on: 16 June 2007.
Revised on: 04 August 2007.
Accepted on: 28 September 2007.
___________________Journal of the American Chemical Society
http://reply.papertrans.cn/2/196/19578/19578-32.png
Submitted on: 21 May 2008.
Revised on: 05 September 2008.
Accepted on: 05 October 2008.
___________________Journal of the American Chemical Society
Submitted on: 09 November 2010.
Revised on: 17 December 2010.
Accepted on: 10 February 2011.
___________________Journal of the American Chemical Society
http://reply.papertrans.cn/2/196/19578/19578-35.png
http://reply.papertrans.cn/2/196/19578/19578-36.png