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

using model chemistry: MP3/aug-cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/aug-cc-pCVTZ
 hartrees
Energy at 0K-51.889451
Energy at 298.15K 
HF Energy-51.626372
Nuclear repulsion energy24.857901
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 MP3/aug-cc-pCVTZ
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 2855 2855 0.08      
2 A1 2146 2146 16.37      
3 A1 1365 1365 3.30      
4 A1 1118 1118 1.98      
5 A1 739 739 3.82      
6 A2 1351 1351 0.00      
7 A2 687 687 0.00      
8 B1 2146 2146 44.23      
9 B1 805 805 2.09      
10 B2 2816 2816 37.28      
11 B2 1415 1415 215.43      
12 B2 561 561 26.79      

Unscaled Zero Point Vibrational Energy (zpe) 9002.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9002.3 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 MP3/aug-cc-pCVTZ
ABC
6.78376 0.84681 0.81573

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/aug-cc-pCVTZ

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 0.897 0.000 0.566
H4 -0.897 0.000 0.566
H5 0.000 1.897 0.009
H6 0.000 -1.897 0.009

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46361.34281.34281.17162.6315
B21.46361.34281.34282.63151.1716
H31.34281.34281.79392.17072.1707
H41.34281.34281.79392.17072.1707
H51.17162.63152.17072.17073.7936
H62.63151.17162.17072.17073.7936

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 56.976 B1 B2 H4 56.976
B1 B2 H6 173.926 B1 H3 B2 66.048
B1 H4 B2 66.048 B2 B1 H3 56.976
B2 B1 H4 56.976 B2 B1 H5 173.926
H3 B1 H4 83.824 H3 B1 H5 119.230
H3 B2 H4 83.824 H3 B2 H6 119.230
H4 B1 H5 119.230 H4 B2 H6 119.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability