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

using model chemistry: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-51.434292
Energy at 298.15K-51.436775
HF Energy-51.292484
Nuclear repulsion energy24.589890
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 CID/3-21G*
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 2884 2683 0.54      
2 A1 2028 1887 23.83      
3 A1 1374 1278 4.56      
4 A1 1157 1077 17.85      
5 A1 705 656 1.03      
6 A2 1240 1154 0.00      
7 A2 463 430 0.00      
8 B1 1996 1858 82.00      
9 B1 799 743 1.17      
10 B2 2837 2640 35.61      
11 B2 1301 1210 199.96      
12 B2 272 253 78.87      

Unscaled Zero Point Vibrational Energy (zpe) 8527.3 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 7934.7 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 CID/3-21G*
ABC
6.49919 0.83438 0.80044

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.738 -0.113
B2 0.000 -0.738 -0.113
H3 0.925 0.000 0.570
H4 -0.925 0.000 0.570
H5 0.000 1.910 -0.003
H6 0.000 -1.910 -0.003

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.47541.36661.36661.17732.6499
B21.47541.36661.36662.64991.1773
H31.36661.36661.85042.19842.1984
H41.36661.36661.85042.19842.1984
H51.17732.64992.19842.19843.8198
H62.64991.17732.19842.19843.8198

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 57.330 B1 B2 H4 57.330
B1 B2 H6 174.645 B1 H3 B2 65.339
B1 H4 B2 65.339 B2 B1 H3 57.330
B2 B1 H4 57.330 B2 B1 H5 174.645
H3 B1 H4 85.216 H3 B1 H5 119.389
H3 B2 H4 85.216 H3 B2 H6 119.389
H4 B1 H5 119.389 H4 B2 H6 119.389
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability