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

using model chemistry: CCSD(T)=FULL/aug-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(T)=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-51.971711
Energy at 298.15K-51.974647
HF Energy-51.629459
Nuclear repulsion energy24.927037
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-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 2840 2720        
2 A1 2159 2068        
3 A1 1361 1304        
4 A1 1114 1068        
5 A1 732 701        
6 A2 1366 1309        
7 A2 693 664        
8 B1 2155 2065        
9 B1 808 774        
10 B2 2790 2673        
11 B2 1427 1367        
12 B2 555 532        

Unscaled Zero Point Vibrational Energy (zpe) 9000.3 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 8622.3 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-pVQZ
ABC
6.85201 0.85094 0.81918

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.730 -0.114
B2 0.000 -0.730 -0.114
H3 0.895 0.000 0.560
H4 -0.895 0.000 0.560
H5 0.000 1.893 0.010
H6 0.000 -1.893 0.010

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46031.33701.33701.16982.6265
B21.46031.33701.33702.62651.1698
H31.33701.33701.78972.16512.1651
H41.33701.33701.78972.16512.1651
H51.16982.62652.16512.16513.7867
H62.62651.16982.16512.16513.7867

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 56.899 B1 B2 H4 56.899
B1 B2 H6 173.913 B1 H3 B2 66.202
B1 H4 B2 66.202 B2 B1 H3 56.899
B2 B1 H4 56.899 B2 B1 H5 173.913
H3 B1 H4 84.029 H3 B1 H5 119.316
H3 B2 H4 84.029 H3 B2 H6 119.316
H4 B1 H5 119.316 H4 B2 H6 119.316
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability