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

using model chemistry: MP2=FULL/6-31G**

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=FULL/6-31G**
 hartrees
Energy at 0K-51.813555
Energy at 298.15K-51.816391
HF Energy-51.607320
Nuclear repulsion energy24.953764
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**
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 2926 2734 0.34      
2 A1 2228 2082 16.11      
3 A1 1393 1302 2.41      
4 A1 1164 1088 1.56      
5 A1 738 689 0.26      
6 A2 1421 1327 0.00      
7 A2 615 575 0.00      
8 B1 2242 2095 58.08      
9 B1 815 761 4.30      
10 B2 2883 2694 35.35      
11 B2 1467 1371 214.05      
12 B2 468 437 25.45      

Unscaled Zero Point Vibrational Energy (zpe) 9179.5 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 8577.3 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**
ABC
6.92373 0.85128 0.81823

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.731 -0.114
B2 0.000 -0.731 -0.114
H3 0.896 0.000 0.546
H4 -0.896 0.000 0.546
H5 0.000 1.892 0.024
H6 0.000 -1.892 0.024

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46221.33141.33141.16912.6268
B21.46221.33141.33142.62681.1691
H31.33141.33141.79152.15742.1574
H41.33141.33141.79152.15742.1574
H51.16912.62682.15742.15743.7840
H62.62681.16912.15742.15743.7840

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 56.692 B1 B2 H4 56.692
B1 B2 H6 173.204 B1 H3 B2 66.615
B1 H4 B2 66.615 B2 B1 H3 56.692
B2 B1 H4 56.692 B2 B1 H5 173.204
H3 B1 H4 84.565 H3 B1 H5 119.118
H3 B2 H4 84.565 H3 B2 H6 119.118
H4 B1 H5 119.118 H4 B2 H6 119.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability