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

using model chemistry: MP4/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 MP4/cc-pVTZ
 hartrees
Energy at 0K-51.897074
Energy at 298.15K-51.899996
HF Energy-51.625571
Nuclear repulsion energy24.792085
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 MP4/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 2834 2747        
2 A1 2127 2061        
3 A1 1342 1301        
4 A1 1110 1076        
5 A1 732 709        
6 A2 1347 1306        
7 A2 683 662        
8 B1 2124 2058        
9 B1 801 776        
10 B2 2795 2709        
11 B2 1400 1357        
12 B2 547 530        

Unscaled Zero Point Vibrational Energy (zpe) 8920.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 8646.1 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 MP4/cc-pVTZ
ABC
6.76372 0.84122 0.81059

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.735 -0.117
B2 0.000 -0.735 -0.117
H3 0.898 0.000 0.564
H4 -0.898 0.000 0.564
H5 0.000 1.900 0.019
H6 0.000 -1.900 0.019

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46981.34531.34531.17332.6388
B21.46981.34531.34532.63881.1733
H31.34531.34531.79572.17152.1715
H41.34531.34531.79572.17152.1715
H51.17332.63882.17152.17153.8008
H62.63881.17332.17152.17153.8008

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 56.888 B1 B2 H4 56.888
B1 B2 H6 173.384 B1 H3 B2 66.224
B1 H4 B2 66.224 B2 B1 H3 56.888
B2 B1 H4 56.888 B2 B1 H5 173.384
H3 B1 H4 83.730 H3 B1 H5 118.968
H3 B2 H4 83.730 H3 B2 H6 118.968
H4 B1 H5 118.968 H4 B2 H6 118.968
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability