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

using model chemistry: B2PLYP=FULLultrafine/daug-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 B2PLYP=FULLultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-50.729543
Energy at 298.15K 
HF Energy-50.667211
Nuclear repulsion energy15.450479
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 B2PLYP=FULLultrafine/daug-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 2865 0.00      
2 Σg 1276 1276 0.00      
3 Σu 2821 2821 26.57      
4 Πg 602 602 0.00      
4 Πg 602 602 0.00      
5 Πu 629 629 0.11      
5 Πu 629 629 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 4712.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4712.3 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 B2PLYP=FULLultrafine/daug-cc-pVTZ
B
0.84864

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVTZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.752
B2 0.000 0.000 -0.752
H3 0.000 0.000 1.920
H4 0.000 0.000 -1.920

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50311.16812.6712
B21.50312.67121.1681
H31.16812.67123.8394
H42.67121.16813.8394

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