<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I’m trying to work out the distance between two arene rings involved in pi-interactions. Is there a way of measuring the distance centre-to-centre of each arene ring? Or any other sensible way? I’m attaching a snapshot for easy reference.<div class=""><br class=""></div><div class="">Thanks in advance for any suggestions.</div><div class=""><br class=""></div><div class="">Regards</div><div class=""><br class=""></div><div class="">George</div><div class=""><img apple-inline="yes" id="0C68579F-6D96-40B7-8A05-C7834432E744" height="562" width="460" apple-width="yes" apple-height="yes" src="cid:E7EF4F26-508B-4D2C-920C-C7C62865CD35" class=""></div></body></html>