Dear Friends,
  I want to calculate the second hyperpolarizabilities of some small
molecules. The user's guide tell us "some can be obtained by
calculating the first hyperpolarizability in a finite field".
Could you tell me how can I obtain them in details or offer me some
further information about that?

       Thanks a lot in advance .
   

Mr. Ding-Wang Yuan
   Key Laboratory of Materials Physics,
   Institute of Solid State Physics,
   Academia Sinica, P.O.Box 1129,
   Hefei 230031,P.R.~China
   Tel :0086-551-5591464(Office)
        0086-551-5592837(Home)
   Fax :0086-551-5591434
Received on 2004-06-23 08:03:08