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

using model chemistry: CID/6-31G*

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/6-31G*
 hartrees
Energy at 0K-50.555326
Energy at 298.15K-50.555168
HF Energy-50.420449
Nuclear repulsion energy15.378556
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/6-31G*
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 2882 2663 0.00      
2 Σg 1309 1210 0.00      
3 Σu 2843 2626 28.02      
4 Πg 445 411 0.00      
4 Πg 445 411 0.00      
5 Πu 619 571 1.27      
5 Πu 619 571 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 4580.7 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 4231.2 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 CID/6-31G*
B
0.84231

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

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 1.932
H4 0.000 0.000 -1.932

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50621.17922.6854
B21.50622.68541.1792
H31.17922.68543.8646
H42.68541.17923.8646

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