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

using model chemistry: MP2=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-51.859589
Energy at 298.15K-51.862483
HF Energy-51.622905
Nuclear repulsion energy24.898188
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=FULL/TZVP
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 2891 2754 0.04      
2 A1 2176 2073 19.68      
3 A1 1372 1307 1.73      
4 A1 1125 1072 0.08      
5 A1 737 702 3.49      
6 A2 1399 1333 0.00      
7 A2 655 624 0.00      
8 B1 2189 2086 38.97      
9 B1 807 769 3.32      
10 B2 2848 2713 33.60      
11 B2 1440 1372 216.77      
12 B2 512 488 28.94      

Unscaled Zero Point Vibrational Energy (zpe) 9075.6 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 8646.3 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 MP2=FULL/TZVP
ABC
6.85471 0.84895 0.81555

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.732 -0.113
B2 0.000 -0.732 -0.113
H3 0.901 0.000 0.551
H4 -0.901 0.000 0.551
H5 0.000 1.895 0.015
H6 0.000 -1.895 0.015

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46391.33721.33721.16992.6299
B21.46391.33721.33722.62991.1699
H31.33721.33721.80192.16542.1654
H41.33721.33721.80192.16542.1654
H51.16992.62992.16542.16543.7896
H62.62991.16992.16542.16543.7896

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 56.810 B1 B2 H4 56.810
B1 B2 H6 173.716 B1 H3 B2 66.379
B1 H4 B2 66.379 B2 B1 H3 56.810
B2 B1 H4 56.810 B2 B1 H5 173.716
H3 B1 H4 84.721 H3 B1 H5 119.327
H3 B2 H4 84.721 H3 B2 H6 119.327
H4 B1 H5 119.327 H4 B2 H6 119.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability