From chemistry-request |-at-| server.ccl.net Thu Aug 17 22:38:22 2000 Received: from exconnect.levels.unisa.edu.au (exconnect.levels.unisa.edu.au [130.220.36.204]) by server.ccl.net (8.8.7/8.8.7) with ESMTP id WAA04096 for ; Thu, 17 Aug 2000 22:38:19 -0400 Received: by exconnect.levels.unisa.edu.au with Internet Mail Service (5.5.2650.21) id ; Fri, 18 Aug 2000 12:07:03 +0930 Message-ID: <5DA42F8A3C18D111979400AA00DD609D035F34E4.,at,.exstaff3.levels.unisa.edu.au> From: Phuong-Cac Nguyen To: "'chemistry:~at~:ccl.net'" Subject: ab initio method for organic compounds Date: Fri, 18 Aug 2000 12:07:04 +0930 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Dear CCLers, I wish to calculate LUMO and HOMOs for N-Allyl-O-Alkyl thiocarbamate molecules using an ab initio method. These are straight chain molecules containing C, O, N, H and C=C, C=S bonds with up to 12 atoms in the backbone. Which ab initio method should I use ? Which basis sets ? Thank you for your time. Phuong-Cac Thi Phuong-Cac Nguyen Ian Wark Research Institute University of South Australia Australia phuong-cac.nguyen[ AT ]unisa.edu.au