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

using model chemistry: QCISD(T)=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)=FULL/6-31+G**
 hartrees
Energy at 0K-51.854143
Energy at 298.15K-51.856826
HF Energy-51.609511
Nuclear repulsion energy24.852832
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 QCISD(T)=FULL/6-31+G**
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 2877 2877        
2 A1 2184 2184        
3 A1 1366 1366        
4 A1 1144 1144        
5 A1 709 709        
6 A2 1380 1380        
7 A2 531 531        
8 B1 2189 2189        
9 B1 791 791        
10 B2 2834 2834        
11 B2 1441 1441        
12 B2 384 384        

Unscaled Zero Point Vibrational Energy (zpe) 8915.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8915.0 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 QCISD(T)=FULL/6-31+G**
ABC
6.86883 0.84417 0.81073

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.735 -0.115
B2 0.000 -0.735 -0.115
H3 0.902 0.000 0.542
H4 -0.902 0.000 0.542
H5 0.000 1.897 0.035
H6 0.000 -1.897 0.035

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47011.33631.33631.17222.6369
B21.47011.33631.33632.63691.1722
H31.33631.33631.80352.16112.1611
H41.33631.33631.80352.16112.1611
H51.17222.63692.16112.16113.7950
H62.63691.17222.16112.16113.7950

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 56.628 B1 B2 H4 56.628
B1 B2 H6 172.606 B1 H3 B2 66.744
B1 H4 B2 66.744 B2 B1 H3 56.628
B2 B1 H4 56.628 B2 B1 H5 172.606
H3 B1 H4 84.877 H3 B1 H5 118.828
H3 B2 H4 84.877 H3 B2 H6 118.828
H4 B1 H5 118.828 H4 B2 H6 118.828
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability