From owner-chemistry@ccl.net Fri Feb 3 05:42:05 2006 From: "George V Papamokos me00109]_[cc.uoi.gr" To: CCL Subject: CCL:G: working with charges Message-Id: <-30767-060203051212-884-c6ALrj/CA4OxMQHqHT4q1A]*[server.ccl.net> X-Original-From: "George V Papamokos" Sent to CCL by: "George V Papamokos" [me00109###cc.uoi.gr] Dear cclers, Iam currently working with charged oligopeptides. These peptides are multiply charged (positive and negative charges) resulting to a total charge either positive or negative. in the input of gaussian software i can give the total charge of the molecule but how do I know that this is distributed as it should be? For example, an oxygen is connected with a single bond with a carbon atom and it carries a -1 charge. Two nitrogens are also connencted with two other Carbon atoms and they carry a +1 charge each. Total charge -1. I declare the total charge in the first lines of the input (1 1 ) but how do I know that the charges are correctly distributed to the proper atoms? Is it just a matter of bond distances? Thank you in advance. George Papamokos