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All results from a given calculation for HBHHBH (Diborane(4) C2V)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-51.684866
Energy at 298.15K-51.687527
HF Energy-51.565367
Nuclear repulsion energy24.249349
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/SDD
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 2881 2781 0.61      
2 A1 1980 1911 48.03      
3 A1 1316 1271 3.88      
4 A1 1134 1095 5.91      
5 A1 735 709 7.98      
6 A2 1197 1156 0.00      
7 A2 488 471 0.00      
8 B1 1989 1920 109.90      
9 B1 813 785 0.28      
10 B2 2835 2736 43.00      
11 B2 1237 1194 206.29      
12 B2 416 401 112.03      

Unscaled Zero Point Vibrational Energy (zpe) 8510.4 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 8215.1 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/SDD
ABC
6.21548 0.81201 0.77972

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.750 -0.112
B2 0.000 -0.750 -0.112
H3 0.941 0.000 0.596
H4 -0.941 0.000 0.596
H5 0.000 1.923 -0.035
H6 0.000 -1.923 -0.035

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.49991.39631.39631.17512.6736
B21.49991.39631.39632.67361.1751
H31.39631.39631.88262.23172.2317
H41.39631.39631.88262.23172.2317
H51.17512.67362.23172.23173.8451
H62.67361.17512.23172.23173.8451

picture of Diborane(4) C2V state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H3 57.515 B1 B2 H4 57.515
B1 B2 H6 176.249 B1 H3 B2 64.971
B1 H4 B2 64.971 B2 B1 H3 57.515
B2 B1 H4 57.515 B2 B1 H5 176.249
H3 B1 H4 84.771 H3 B1 H5 120.183
H3 B2 H4 84.771 H3 B2 H6 120.183
H4 B1 H5 120.183 H4 B2 H6 120.183
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability