My e-mail address [log in to unmask] will become defunct in the near future. Please use [log in to unmask] from now on. With best wishes, Per Jensen -- Per Jensen Room : L 13.12 FB 9 - Theoretische Chemie Phone : +49 202 439 2468 Bergische Universitaet - Fax : +49 202 439 2581 Gesamthochschule Wuppertal D-42097 Wuppertal Germany E-Mail: [log in to unmask] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%