Hi Jones Etc. It's more like a chlatrate (of sorts); one capable of forming ionic bonds with other atoms the way an ordinary ion does. Here's some more on the subject.
http://www.science.psu.edu/alert/Castleman3-2004.htm The Science website will not let you look at _abstracts_ much less the paper without some coin. This would bother me much less if the work wasn't done at a state college payed for out of DOE grant money. K. -----Original Message----- From: Jones Beene [mailto:[EMAIL PROTECTED] Sent: Sunday, January 16, 2005 2:34 PM To: [EMAIL PROTECTED]; [email protected] Subject: RE: Clusters Hi Keith and Nick, Is not a cluster an exciton? or maybe the question should be, is not an exciton an "active" cluster of a particular material in a particular geometric configuration? Jones

