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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-51.808583
Energy at 298.15K-51.811478
HF Energy-51.609080
Nuclear repulsion energy24.511701
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/aug-cc-pVDZ
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 2851 2734 0.16      
2 A1 2128 2040 18.49      
3 A1 1343 1288 2.89      
4 A1 1104 1059 2.29      
5 A1 727 697 4.20      
6 A2 1347 1292 0.00      
7 A2 669 641 0.00      
8 B1 2135 2048 44.47      
9 B1 800 768 2.05      
10 B2 2811 2695 35.71      
11 B2 1396 1339 229.51      
12 B2 522 501 27.54      

Unscaled Zero Point Vibrational Energy (zpe) 8916.3 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 8550.8 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/aug-cc-pVDZ
ABC
6.65507 0.82015 0.79062

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.745 -0.116
B2 0.000 -0.745 -0.116
H3 0.905 0.000 0.571
H4 -0.905 0.000 0.571
H5 0.000 1.921 0.011
H6 0.000 -1.921 0.011

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.49071.35921.35921.18272.6696
B21.49071.35921.35922.66961.1827
H31.35921.35921.80972.19642.1964
H41.35921.35921.80972.19642.1964
H51.18272.66962.19642.19643.8424
H62.66961.18272.19642.19643.8424

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 56.745 B1 B2 H4 56.745
B1 B2 H6 173.823 B1 H3 B2 66.509
B1 H4 B2 66.509 B2 B1 H3 56.745
B2 B1 H4 56.745 B2 B1 H5 173.823
H3 B1 H4 83.475 H3 B1 H5 119.388
H3 B2 H4 83.475 H3 B2 H6 119.388
H4 B1 H5 119.388 H4 B2 H6 119.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability