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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(TQ)/aug-cc-pVDZ

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(TQ)/aug-cc-pVDZ
 hartrees
Energy at 0K-53.090408
Energy at 298.15K-53.096297
HF Energy-52.817018
Nuclear repulsion energy31.686297
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(TQ)/aug-cc-pVDZ
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 2603 2603 0.00      
2 Ag 2158 2158 0.00      
3 Ag 1190 1190 0.00      
4 Ag 801 801 0.00      
5 Au 832 832 0.00      
6 B1g 2679 2679 0.00      
7 B1g 923 923 0.00      
8 B1u 1978 1978 0.00      
9 B1u 982 982 0.00      
10 B2g 1871 1871 0.00      
11 B2g 875 875 0.00      
12 B2u 2696 2696 0.00      
13 B2u 962 962 0.00      
14 B2u 366 366 0.00      
15 B3g 1050 1050 0.00      
16 B3u 2587 2587 0.00      
17 B3u 1740 1740 0.00      
18 B3u 1174 1174 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13733.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13733.9 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(TQ)/aug-cc-pVDZ
ABC
2.61724 0.59370 0.54493

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.896 0.000 0.000
B2 -0.896 0.000 0.000
H3 0.000 0.000 0.984
H4 0.000 0.000 -0.984
H5 1.473 1.055 0.000
H6 1.473 -1.055 0.000
H7 -1.473 1.055 0.000
H8 -1.473 -1.055 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.79291.33081.33081.20291.20292.59422.5942
B21.79291.33081.33082.59422.59421.20291.2029
H31.33081.33081.96712.06212.06212.06212.0621
H41.33081.33081.96712.06212.06212.06212.0621
H51.20292.59422.06212.06212.11102.94663.6248
H61.20292.59422.06212.06212.11103.62482.9466
H72.59421.20292.06212.06212.94663.62482.1110
H82.59421.20292.06212.06213.62482.94662.1110

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.694 B1 H4 B2 84.694
H3 B1 H4 95.306 H3 B1 H5 108.848
H3 B1 H6 108.848 H3 B2 H4 95.306
H3 B2 H7 108.848 H3 B2 H8 108.848
H4 B1 H5 108.848 H4 B1 H6 108.848
H4 B2 H7 108.848 H4 B2 H8 108.848
H5 B1 H6 122.683 H7 B2 H8 122.683
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability