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All results from a given calculation for HBBH (Diborane(2))

using model chemistry: CCSD=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3ΣG
Energy calculated at CCSD=FULL/Def2TZVPP
 hartrees
Energy at 0K-50.659347
Energy at 298.15K-50.659433
HF Energy-50.440075
Nuclear repulsion energy15.414336
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2840 2840 0.00      
2 Σg 1273 1273 0.00      
3 Σu 2799 2799 26.07      
4 Πg 596 596 0.00      
4 Πg 596 596 0.00      
5 Πu 630 630 0.02      
5 Πu 630 630 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 4682.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4682.2 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/Def2TZVPP
B
0.84460

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/Def2TZVPP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.753
B2 0.000 0.000 -0.753
H3 0.000 0.000 1.924
H4 0.000 0.000 -1.924

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50681.17062.6774
B21.50682.67741.1706
H31.17062.67743.8480
H42.67741.17063.8480

picture of Diborane(2) state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H4 180.000 B2 B1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability