Ti
indico alcuni indirizzi di siti dove trovare i dati richiesti:
http://www.library.ubc.ca/scieng/ca/ca.htm
http://chpc06.ch.unito.it/chempointers_it.html
http://www.chemie.de/~knecht/englisch/chemeng.phtml
http://heme.gsu.edu/post_docs/koen/worgche.html
http://www.claessen.net/chemistry
http://heme.gsu.edu/post_docs/koen/worgche.html