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

using model chemistry: MP4=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-51.927178
Energy at 298.15K-51.930087
HF Energy-51.625478
Nuclear repulsion energy24.939637
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 MP4=FULL/cc-pVTZ
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 2837 2732        
2 A1 2157 2077        
3 A1 1362 1311        
4 A1 1126 1084        
5 A1 725 698        
6 A2 1360 1309        
7 A2 686 661        
8 B1 2150 2070        
9 B1 809 779        
10 B2 2791 2687        
11 B2 1385 1334        
12 B2 522 503        

Unscaled Zero Point Vibrational Energy (zpe) 8954.7 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 8622.5 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 MP4=FULL/cc-pVTZ
ABC
6.85227 0.85149 0.82010

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.730 -0.117
B2 0.000 -0.730 -0.117
H3 0.893 0.000 0.555
H4 -0.893 0.000 0.555
H5 0.000 1.890 0.031
H6 0.000 -1.890 0.031

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46061.33571.33571.16962.6249
B21.46061.33571.33572.62491.1696
H31.33571.33571.78692.15572.1557
H41.33571.33571.78692.15572.1557
H51.16962.62492.15572.15573.7809
H62.62491.16962.15572.15573.7809

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 56.855 B1 B2 H4 56.855
B1 B2 H6 172.720 B1 H3 B2 66.290
B1 H4 B2 66.290 B2 B1 H3 56.855
B2 B1 H4 56.855 B2 B1 H5 172.720
H3 B1 H4 83.964 H3 B1 H5 118.590
H3 B2 H4 83.964 H3 B2 H6 118.590
H4 B1 H5 118.590 H4 B2 H6 118.590
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability