return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for BH3 (boron trihydride)

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-26.502417
Energy at 298.15K-26.503871
HF Energy-26.394667
Nuclear repulsion energy7.461693
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2=FULL/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 2650 2491 0.00      
2 A2" 1183 1112 91.85      
3 E' 2796 2628 107.37      
3 E' 2796 2628 107.37      
4 E' 1246 1171 15.30      
4 E' 1246 1171 15.30      

Unscaled Zero Point Vibrational Energy (zpe) 5958.9 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 5600.7 cm-1
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.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G(2df,p)
ABC
7.91943 7.91943 3.95972

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
H2 0.000 1.187 0.000
H3 1.028 -0.593 0.000
H4 -1.028 -0.593 0.000

Atom - Atom Distances (Å)
  B1 H2 H3 H4
B11.18661.18661.1866
H21.18662.05532.0553
H31.18662.05532.0553
H41.18662.05532.0553

picture of boron trihydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 120.000 H2 B1 H4 120.000
H3 B1 H4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability