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

using model chemistry: CCSD(T)/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 CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-51.848995
Energy at 298.15K-51.851821
HF Energy-51.608757
Nuclear repulsion energy24.395464
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 CCSD(T)/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 2803 2698        
2 A1 2080 2002        
3 A1 1323 1273        
4 A1 1101 1060        
5 A1 713 686        
6 A2 1289 1240        
7 A2 626 603        
8 B1 2079 2001        
9 B1 789 760        
10 B2 2762 2659        
11 B2 1359 1308        
12 B2 483 465        

Unscaled Zero Point Vibrational Energy (zpe) 8703.0 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 8376.7 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 CCSD(T)/aug-cc-pVDZ
ABC
6.56630 0.81278 0.78380

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.749 -0.119
B2 0.000 -0.749 -0.119
H3 0.909 0.000 0.575
H4 -0.909 0.000 0.575
H5 0.000 1.928 0.019
H6 0.000 -1.928 0.019

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.49771.36711.36711.18722.6804
B21.49771.36711.36712.68041.1872
H31.36711.36711.81892.20312.2031
H41.36711.36711.81892.20312.2031
H51.18722.68042.20312.20313.8561
H62.68041.18722.20312.20313.8561

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 56.787 B1 B2 H4 56.787
B1 B2 H6 173.355 B1 H3 B2 66.427
B1 H4 B2 66.427 B2 B1 H3 56.787
B2 B1 H4 56.787 B2 B1 H5 173.355
H3 B1 H4 83.397 H3 B1 H5 119.036
H3 B2 H4 83.397 H3 B2 H6 119.036
H4 B1 H5 119.036 H4 B2 H6 119.036
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability