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

using model chemistry: CCSD=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=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-51.926986
Energy at 298.15K-51.929940
HF Energy-51.626142
Nuclear repulsion energy24.963056
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/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 2864 2724 0.06      
2 A1 2135 2031 17.23      
3 A1 1387 1319 3.22      
4 A1 1124 1069 2.10      
5 A1 743 706 3.86      
6 A2 1327 1262 0.00      
7 A2 684 651 0.00      
8 B1 2129 2025 46.66      
9 B1 833 792 1.99      
10 B2 2815 2677 38.82      
11 B2 1395 1327 207.06      
12 B2 568 540 27.99      

Unscaled Zero Point Vibrational Energy (zpe) 9002.6 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 8561.4 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/aug-cc-pVTZ
ABC
6.82032 0.85512 0.82352

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.728 -0.114
B2 0.000 -0.728 -0.114
H3 0.895 0.000 0.565
H4 -0.895 0.000 0.565
H5 0.000 1.890 0.002
H6 0.000 -1.890 0.002

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6
B11.45541.33841.33841.16772.6198
B21.45541.33841.33842.61981.1677
H31.33841.33841.78972.16532.1653
H41.33841.33841.78972.16532.1653
H51.16772.61982.16532.16533.7792
H62.61981.16772.16532.16533.7792

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 57.064 B1 B2 H4 57.064
B1 B2 H6 174.309 B1 H3 B2 65.873
B1 H4 B2 65.873 B2 B1 H3 57.064
B2 B1 H4 57.064 B2 B1 H5 174.309
H3 B1 H4 83.921 H3 B1 H5 119.388
H3 B2 H4 83.921 H3 B2 H6 119.388
H4 B1 H5 119.388 H4 B2 H6 119.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability