Dear Pierre, For your second input > > If now I give the alternative data: > {rhf; > > wf,85,1,1; > closed,22,14,4,2; > open , 1,0,0,0 } I think you have an error on the open card. It should probably be something like: open,23.1 See: http://www.molpro.net/info/2012.1/doc/manual/node153.html Best wishes, Grant