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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/3-21G
 hartrees
Energy at 0K-51.620615
Energy at 298.15K 
HF Energy-51.576967
Nuclear repulsion energy24.673285
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 B2PLYP=FULLultrafine/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 2915 2915 0.19      
2 A1 2039 2039 24.59      
3 A1 1375 1375 4.03      
4 A1 1155 1155 15.84      
5 A1 725 725 1.27      
6 A2 1212 1212 0.00      
7 A2 553 553 0.00      
8 B1 2010 2010 84.62      
9 B1 826 826 1.15      
10 B2 2870 2870 29.98      
11 B2 1266 1266 181.64      
12 B2 373 373 86.21      

Unscaled Zero Point Vibrational Energy (zpe) 8658.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8658.6 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 B2PLYP=FULLultrafine/3-21G
ABC
6.50503 0.84035 0.80765

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.735 -0.112
B2 0.000 -0.735 -0.112
H3 0.919 0.000 0.581
H4 -0.919 0.000 0.581
H5 0.000 1.901 -0.019
H6 0.000 -1.901 -0.019

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46931.36551.36551.17052.6377
B21.46931.36551.36552.63771.1705
H31.36551.36551.83782.19552.1955
H41.36551.36551.83782.19552.1955
H51.17052.63772.19552.19553.8029
H62.63771.17052.19552.19553.8029

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 57.452 B1 B2 H4 57.452
B1 B2 H6 175.448 B1 H3 B2 65.096
B1 H4 B2 65.096 B2 B1 H3 57.452
B2 B1 H4 57.452 B2 B1 H5 175.448
H3 B1 H4 84.587 H3 B1 H5 119.737
H3 B2 H4 84.587 H3 B2 H6 119.737
H4 B1 H5 119.737 H4 B2 H6 119.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability