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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-51.859862
Energy at 298.15K-51.862823
HF Energy-51.625615
Nuclear repulsion energy24.887260
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/cc-pVTZ
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 2869 2724 0.04      
2 A1 2169 2059 11.44      
3 A1 1359 1291 2.25      
4 A1 1115 1058 1.62      
5 A1 741 703 2.86      
6 A2 1393 1323 0.00      
7 A2 709 673 0.00      
8 B1 2172 2063 36.31      
9 B1 808 767 2.79      
10 B2 2829 2687 33.82      
11 B2 1433 1361 216.58      
12 B2 572 543 25.86      

Unscaled Zero Point Vibrational Energy (zpe) 9084.7 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 8625.9 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/cc-pVTZ
ABC
6.84911 0.84707 0.81587

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.732 -0.115
B2 0.000 -0.732 -0.115
H3 0.894 0.000 0.560
H4 -0.894 0.000 0.560
H5 0.000 1.895 0.015
H6 0.000 -1.895 0.015

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46471.33821.33821.17032.6310
B21.46471.33821.33822.63101.1703
H31.33821.33821.78812.16552.1655
H41.33821.33821.78812.16552.1655
H51.17032.63102.16552.16553.7910
H62.63101.17032.16552.16553.7910

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 56.820 B1 B2 H4 56.820
B1 B2 H6 173.647 B1 H3 B2 66.361
B1 H4 B2 66.361 B2 B1 H3 56.820
B2 B1 H4 56.820 B2 B1 H5 173.647
H3 B1 H4 83.843 H3 B1 H5 119.218
H3 B2 H4 83.843 H3 B2 H6 119.218
H4 B1 H5 119.218 H4 B2 H6 119.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability