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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(T)=FULL/Def2TZVPP

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(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-53.183902
Energy at 298.15K-53.189847
HF Energy-52.836048
Nuclear repulsion energy32.242828
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(T)=FULL/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2644 2644 0.00      
2 Ag 2192 2192 0.00      
3 Ag 1220 1220 0.00      
4 Ag 822 822 0.00      
5 Au 865 865 0.00      
6 B1g 2715 2715 0.00      
7 B1g 950 950 0.00      
8 B1u 2009 2009 0.00      
9 B1u 1003 1003 0.00      
10 B2g 1896 1896 0.00      
11 B2g 908 908 0.00      
12 B2u 2729 2729 0.00      
13 B2u 991 991 0.00      
14 B2u 381 381 0.00      
15 B3g 1075 1075 0.00      
16 B3u 2628 2628 0.00      
17 B3u 1758 1758 0.00      
18 B3u 1210 1210 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13996.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13996.6 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(T)=FULL/Def2TZVPP
ABC
2.70364 0.61678 0.56641

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.877 0.000 0.000
B2 -0.877 0.000 0.000
H3 0.000 0.000 0.972
H4 0.000 0.000 -0.972
H5 1.451 1.037 0.000
H6 1.451 -1.037 0.000
H7 -1.451 1.037 0.000
H8 -1.451 -1.037 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75461.30901.30901.18471.18472.54832.5483
B21.75461.30901.30902.54832.54831.18471.1847
H31.30901.30901.94302.03052.03052.03052.0305
H41.30901.30901.94302.03052.03052.03052.0305
H51.18472.54832.03052.03052.07342.90123.5659
H61.18472.54832.03052.03052.07343.56592.9012
H72.54831.18472.03052.03052.90123.56592.0734
H82.54831.18472.03052.03053.56592.90122.0734

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.166 B1 H4 B2 84.166
H3 B1 H4 95.834 H3 B1 H5 108.925
H3 B1 H6 108.925 H3 B2 H4 95.834
H3 B2 H7 108.925 H3 B2 H8 108.925
H4 B1 H5 108.925 H4 B1 H6 108.925
H4 B2 H7 108.925 H4 B2 H8 108.925
H5 B1 H6 122.116 H7 B2 H8 122.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability