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

using model chemistry: QCISD(TQ)/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 QCISD(TQ)/cc-pVDZ
 hartrees
Energy at 0K-51.841158
Energy at 298.15K-51.843973
HF Energy-51.607327
Nuclear repulsion energy24.346792
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(TQ)/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 2813 2813        
2 A1 2091 2091        
3 A1 1334 1334        
4 A1 1112 1112        
5 A1 716 716        
6 A2 1282 1282        
7 A2 620 620        
8 B1 2100 2100        
9 B1 792 792        
10 B2 2771 2771        
11 B2 1356 1356        
12 B2 474 474        

Unscaled Zero Point Vibrational Energy (zpe) 8730.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8730.9 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(TQ)/cc-pVDZ
ABC
6.51462 0.81047 0.78166

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.750 -0.119
B2 0.000 -0.750 -0.119
H3 0.912 0.000 0.578
H4 -0.912 0.000 0.578
H5 0.000 1.932 0.018
H6 0.000 -1.932 0.018

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.49901.37141.37141.19002.6846
B21.49901.37141.37142.68461.1900
H31.37141.37141.82432.20832.2083
H41.37141.37141.82432.20832.2083
H51.19002.68462.20832.20833.8631
H62.68461.19002.20832.20833.8631

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 56.870 B1 B2 H4 56.870
B1 B2 H6 173.365 B1 H3 B2 66.260
B1 H4 B2 66.260 B2 B1 H3 56.870
B2 B1 H4 56.870 B2 B1 H5 173.365
H3 B1 H4 83.387 H3 B1 H5 118.953
H3 B2 H4 83.387 H3 B2 H6 118.953
H4 B1 H5 118.953 H4 B2 H6 118.953
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability