Relocation

The link

http://ursula.chem.yale.edu/~chem220/chem220js/STUDYAIDS/isomers/RSEZ14161/RSEZ14161.html

has been relocated to:

http://ursula.chem.yale.edu/~chem220/chem220js/STUDYAIDS/isomers/RS14272/RSEZ14161.html