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

using model chemistry: CCSD(T)=FULL/aug-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 CCSD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-51.938207
Energy at 298.15K-51.941138
HF Energy-51.626078
Nuclear repulsion energy24.914470
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(T)=FULL/aug-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 2851 2747        
2 A1 2123 2046        
3 A1 1369 1320        
4 A1 1108 1068        
5 A1 730 703        
6 A2 1331 1283        
7 A2 683 659        
8 B1 2115 2038        
9 B1 825 795        
10 B2 2803 2701        
11 B2 1385 1335        
12 B2 551 531        

Unscaled Zero Point Vibrational Energy (zpe) 8936.3 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 8611.9 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 CCSD(T)=FULL/aug-cc-pVTZ
ABC
6.80658 0.85090 0.81968

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.730 -0.115
B2 0.000 -0.730 -0.115
H3 0.895 0.000 0.564
H4 -0.895 0.000 0.564
H5 0.000 1.892 0.011
H6 0.000 -1.892 0.011

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46001.34011.34011.16902.6252
B21.46001.34011.34012.62521.1690
H31.34011.34011.79062.16502.1650
H41.34011.34011.79062.16502.1650
H51.16902.62522.16502.16503.7843
H62.62521.16902.16502.16503.7843

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 56.993 B1 B2 H4 56.993
B1 B2 H6 173.792 B1 H3 B2 66.014
B1 H4 B2 66.014 B2 B1 H3 56.993
B2 B1 H4 56.993 B2 B1 H5 173.792
H3 B1 H4 83.838 H3 B1 H5 119.126
H3 B2 H4 83.838 H3 B2 H6 119.126
H4 B1 H5 119.126 H4 B2 H6 119.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability