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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-53.097120
Energy at 298.15K-53.103049
HF Energy-52.827874
Nuclear repulsion energy31.977813
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 QCISD/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 2630 2509 0.00      
2 Ag 2187 2087 0.00      
3 Ag 1221 1165 0.00      
4 Ag 813 776 0.00      
5 Au 859 819 0.00      
6 B1g 2708 2584 0.00      
7 B1g 948 905 0.00      
8 B1u 2003 1911 13.49      
9 B1u 1008 962 19.17      
10 B2g 1890 1803 0.00      
11 B2g 890 850 0.00      
12 B2u 2721 2597 179.56      
13 B2u 999 954 2.15      
14 B2u 365 348 14.54      
15 B3g 1093 1043 0.00      
16 B3u 2614 2494 143.12      
17 B3u 1754 1674 534.06      
18 B3u 1207 1152 93.80      

Unscaled Zero Point Vibrational Energy (zpe) 13955.6 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 13315.0 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 QCISD/6-311G**
ABC
2.67254 0.60408 0.55509

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.888 0.000 0.000
B2 -0.888 0.000 0.000
H3 0.000 0.000 0.977
H4 0.000 0.000 -0.977
H5 1.462 1.043 0.000
H6 1.462 -1.043 0.000
H7 -1.462 1.043 0.000
H8 -1.462 -1.043 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77621.32001.32001.19051.19052.57122.5712
B21.77621.32001.32002.57122.57121.19051.1905
H31.32001.32001.95312.04432.04432.04432.0443
H41.32001.32001.95312.04432.04432.04432.0443
H51.19052.57122.04432.04432.08602.92423.5920
H61.19052.57122.04432.04432.08603.59202.9242
H72.57121.19052.04432.04432.92423.59202.0860
H82.57121.19052.04432.04433.59202.92422.0860

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.567 B1 H4 B2 84.567
H3 B1 H4 95.433 H3 B1 H5 108.929
H3 B1 H6 108.929 H3 B2 H4 95.433
H3 B2 H7 108.929 H3 B2 H8 108.929
H4 B1 H5 108.929 H4 B1 H6 108.929
H4 B2 H7 108.929 H4 B2 H8 108.929
H5 B1 H6 122.346 H7 B2 H8 122.346
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability