JACS and J Chem Ed Conference Proceedings formatting doesn't seem to conform to ACS Style.
According to the ACS Style Guide, a meeting or conference reference should have the meeting place and date information first, followed by the publisher information. The present JACS and J. Chem. Ed. styles seem to reverse this information.
Page 292 in the 2006 edition of the ACS Style Guide has an example for "Meeting or conference, full citation"
What I really aim to do is something more like what appears on page 308 for Abstracts (second example on that page).