Sent to CCL by: "Hua Ma" [g0403132(-)nus.edu.sg] %chk=Rh-group.chk %mem=60MW OPT MP3/GEN Rh-group ......(molecular description) C H O 0 6-31G** **** Rh 0 LANL2DZ **** The program does not work successfully, but I do not know the reason. Best Regards, Ma Hua