hi, see jcp (in the 1960's) for noble crystals, ... let me know, else i shall give u the number madhu
----- Original Message ---- From: "Tirosh, Shay" <[EMAIL PROTECTED]> To: "rietveld_l@ill.fr" <rietveld_l@ill.fr> Sent: Sunday, December 30, 2007 8:00:19 PM Subject: crystals that contains noble gases Dear Rietveld users. I wonder if any of you familiar with crystals that contains noble gases. I address to crystals that exists in normal temperature pressure conditions, or in some non-extreme conditions. For example there is branch in noble gases chemistry where noble gases like Ar, Xe and Kr are attached to an organic compound. I wonder if someone ever tried to crystallize molecules contains noble atoms. I would be grateful for any paper that supports the existence of such entities. Thank you from advance. Regards, Shay Tirosh ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs