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

using model chemistry: CCSD(T)=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 CCSD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-51.928294
Energy at 298.15K-51.931192
HF Energy-51.625531
Nuclear repulsion energy24.932505
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/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 2829 2710        
2 A1 2149 2059        
3 A1 1364 1307        
4 A1 1127 1080        
5 A1 723 692        
6 A2 1340 1284        
7 A2 676 648        
8 B1 2142 2052        
9 B1 808 774        
10 B2 2782 2665        
11 B2 1378 1320        
12 B2 517 495        

Unscaled Zero Point Vibrational Energy (zpe) 8917.5 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 8543.0 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/cc-pVTZ
ABC
6.83715 0.85152 0.82009

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=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 0.894 0.000 0.557
H4 -0.894 0.000 0.557
H5 0.000 1.891 0.028
H6 0.000 -1.891 0.028

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.46011.33681.33681.17022.6252
B21.46011.33681.33682.62521.1702
H31.33681.33681.78862.15762.1576
H41.33681.33681.78862.15762.1576
H51.17022.62522.15762.15763.7823
H62.62521.17022.15762.15763.7823

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 172.856 B1 H3 B2 66.202
B1 H4 B2 66.202 B2 B1 H3 56.899
B2 B1 H4 56.899 B2 B1 H5 172.856
H3 B1 H4 83.980 H3 B1 H5 118.632
H3 B2 H4 83.980 H3 B2 H6 118.632
H4 B1 H5 118.632 H4 B2 H6 118.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability