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All results from a given calculation for B2H6 (Diborane)

using model chemistry: QCISD(TQ)=FULL/6-31G*

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)=FULL/6-31G*
 hartrees
Energy at 0K-53.043565
Energy at 298.15K-53.049466
HF Energy-52.812054
Nuclear repulsion energy32.100867
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)=FULL/6-31G*
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 2655 2655 0.00      
2 Ag 2241 2241 0.00      
3 Ag 1223 1223 0.00      
4 Ag 832 832 0.00      
5 Au 860 860 0.00      
6 B1g 2735 2735 0.00      
7 B1g 954 954 0.00      
8 B1u 2076 2076 0.00      
9 B1u 999 999 0.00      
10 B2g 1928 1928 0.00      
11 B2g 885 885 0.00      
12 B2u 2747 2747 0.00      
13 B2u 989 989 0.00      
14 B2u 361 361 0.00      
15 B3g 1063 1063 0.00      
16 B3u 2640 2640 0.00      
17 B3u 1798 1798 0.00      
18 B3u 1216 1216 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14099.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14099.4 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)=FULL/6-31G*
ABC
2.67139 0.61379 0.56344

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/6-31G*

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 0.978
H4 0.000 0.000 -0.978
H5 1.460 1.043 0.000
H6 1.460 -1.043 0.000
H7 -1.460 1.043 0.000
H8 -1.460 -1.043 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75441.31381.31381.19451.19452.55922.5592
B21.75441.31381.31382.55922.55921.19451.1945
H31.31381.31381.95612.04342.04342.04342.0434
H41.31381.31381.95612.04342.04342.04342.0434
H51.19452.55922.04342.04342.08532.92003.5882
H61.19452.55922.04342.04342.08533.58822.9200
H72.55921.19452.04342.04342.92003.58822.0853
H82.55921.19452.04342.04343.58822.92002.0853

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.779 B1 H4 B2 83.779
H3 B1 H4 96.221 H3 B1 H5 109.013
H3 B1 H6 109.013 H3 B2 H4 96.221
H3 B2 H7 109.013 H3 B2 H8 109.013
H4 B1 H5 109.013 H4 B1 H6 109.013
H4 B2 H7 109.013 H4 B2 H8 109.013
H5 B1 H6 121.592 H7 B2 H8 121.592
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability