From owner-chemistry@ccl.net Tue Feb  7 13:28:00 2012
From: "Ram Shankar S ramchemistry2011]=[gmail.com" <owner-chemistry{:}server.ccl.net>
To: CCL
Subject: CCL: How can be separate CH-pi and pi-pi interaction?
Message-Id: <-46258-120207132241-5153-WH7R7wORUPmkBJjRCnu+ew{:}server.ccl.net>
X-Original-From: "Ram Shankar S" <ramchemistry2011!=!gmail.com>
Date: Tue, 7 Feb 2012 13:22:30 -0500


Sent to CCL by: "Ram Shankar S" [ramchemistry2011|gmail.com]
Dear All,
        How can we separate CH-pi and pi-pi interaction into strong, moderate and weak based on the bond distance and bond angles (geometrical parameters) in pure organic substances? Whether is there any reference available for this?

       On what basis this kind of interactions (CH-pi and pi-pi) is separated, and I would like to know how this CH-pi and pi-pi interactions can be classified as strong, moderate and weak.Please help me in this regards.

Thanks in advance

With Regards,
RAAM