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

using model chemistry: CID/cc-pVTZ

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 CID/cc-pVTZ
 hartrees
Energy at 0K-50.612102
Energy at 298.15K-50.612208
HF Energy-50.439015
Nuclear repulsion energy15.414366
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 CID/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 Σg 2865 2654 0.00      
2 Σg 1290 1195 0.00      
3 Σu 2820 2613 27.17      
4 Πg 600 556 0.00      
4 Πg 600 556 0.00      
5 Πu 638 591 0.23      
5 Πu 638 591 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 4724.3 cm-1
Scaled (by 0.9265) Zero Point Vibrational Energy (zpe) 4377.1 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 CID/cc-pVTZ
B
0.84482

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/cc-pVTZ

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 1.925
H4 0.000 0.000 -1.925

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50621.17142.6776
B21.50622.67761.1714
H31.17142.67763.8490
H42.67761.17143.8490

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