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

using model chemistry: CCSD=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-51.956862
Energy at 298.15K-51.959812
HF Energy-51.629421
Nuclear repulsion energy24.975275
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 CCSD=FULL/cc-pVQZ
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 2855 2855 0.08      
2 A1 2169 2169 15.98      
3 A1 1366 1366 2.97      
4 A1 1129 1129 1.80      
5 A1 743 743 3.59      
6 A2 1363 1363 0.00      
7 A2 687 687 0.00      
8 B1 2168 2168 44.63      
9 B1 810 810 2.21      
10 B2 2814 2814 38.14      
11 B2 1438 1438 207.92      
12 B2 571 571 26.65      

Unscaled Zero Point Vibrational Energy (zpe) 9056.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9056.8 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 CCSD=FULL/cc-pVQZ
ABC
6.85814 0.85534 0.82317

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.728 -0.113
B2 0.000 -0.728 -0.113
H3 0.895 0.000 0.560
H4 -0.895 0.000 0.560
H5 0.000 1.890 0.006
H6 0.000 -1.890 0.006

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45561.33551.33551.16862.6208
B21.45561.33551.33552.62081.1686
H31.33551.33551.78972.16342.1634
H41.33551.33551.78972.16342.1634
H51.16862.62082.16342.16343.7805
H62.62081.16862.16342.16343.7805

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 56.977 B1 B2 H4 56.977
B1 B2 H6 174.121 B1 H3 B2 66.045
B1 H4 B2 66.045 B2 B1 H3 56.977
B2 B1 H4 56.977 B2 B1 H5 174.121
H3 B1 H4 84.144 H3 B1 H5 119.372
H3 B2 H4 84.144 H3 B2 H6 119.372
H4 B1 H5 119.372 H4 B2 H6 119.372
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability