Dear users, I just want to know the unit of lmax. Is it unitless? Can anybody help me. Also tell me the significant of lmax. With thanks and regards. Mamta -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://zeus.theochem.tuwien.ac.at/pipermail/wien/attachments/20150401/4c3a5be3/attachment.html>