See the movie:
http://pubs.acs.org/subscribe/journals/orlef7/suppinfo/ol801135g/ol801135g-File003.mov <http://pubs.acs.org/subscribe/journals/orlef7/suppinfo/ol801135g/ol801135g-File003.mov>Read the article:
http://pubs.acs.org/cgi-bin/asap.cgi/orlef7/asap/pdf/ol801135g.pdf