IV.A.4. (XIV.F.) 
index  Species  CAS number  Name  Relative experimental enthalpy (kJ mol^{1})  sketch 

a  HBHHBH  9000348  Diborane(4) C2V  
b  B_{2}H_{4}  18099451  Diborane(4) D2d 
631G*  631+G**  

hartree fock  HF  0.0 a 80.8 b 

density functional  TPSSh  0.0 a 10.9 b 

Moller Plesset perturbation  MP3=FULL  0.0 a 21.5 b 
0.0 a 16.0 b 
See section III.C.1 List or set vibrational scaling factors
to change the scale factors used here.
See section III.C.2
Calculate a vibrational scaling factor for a given set of molecules
to determine the least squares best scaling factor.