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

using model chemistry: CCD/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 CCD/cc-pVTZ
 hartrees
Energy at 0K-50.621099
Energy at 298.15K-50.621187
HF Energy-50.438961
Nuclear repulsion energy15.384114
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 CCD/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 2841 2653 0.00      
2 Σg 1278 1193 0.00      
3 Σu 2797 2611 25.55      
4 Πg 593 553 0.00      
4 Πg 593 553 0.00      
5 Πu 630 588 0.20      
5 Πu 630 588 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 4680.1 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 4369.8 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 CCD/cc-pVTZ
B
0.84150

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.755
B2 0.000 0.000 -0.755
H3 0.000 0.000 1.928
H4 0.000 0.000 -1.928

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50921.17372.6829
B21.50922.68291.1737
H31.17372.68293.8566
H42.68291.17373.8566

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