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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at MP2/cc-pVQZ
 hartrees
Energy at 0K-53.116212
Energy at 298.15K-53.122156
HF Energy-52.838889
Nuclear repulsion energy32.290231
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 MP2/cc-pVQZ
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 2669 2532 0.00 270.32 0.08 0.14
2 Ag 2224 2109 0.00 85.03 0.05 0.09
3 Ag 1227 1163 0.00 5.84 0.73 0.85
4 Ag 830 788 0.00 19.04 0.15 0.27
5 Au 868 824 0.00 0.00 0.58 0.73
6 B1g 2752 2610 0.00 101.40 0.75 0.86
7 B1g 952 903 0.00 0.74 0.75 0.86
8 B1u 2055 1949 7.53 0.00 0.00 0.00
9 B1u 1004 953 26.73 0.00 0.00 0.00
10 B2g 1945 1845 0.00 4.40 0.75 0.86
11 B2g 914 867 0.00 0.00 0.75 0.86
12 B2u 2765 2623 164.15 0.00 0.00 0.00
13 B2u 974 923 0.83 0.00 0.75 0.86
14 B2u 372 353 16.48 0.00 0.00 0.00
15 B3g 1065 1010 0.00 8.88 0.75 0.86
16 B3u 2654 2517 143.44 0.00 0.00 0.00
17 B3u 1778 1686 488.43 0.00 0.00 0.00
18 B3u 1217 1154 74.37 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14133.1 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 13403.8 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 MP2/cc-pVQZ
ABC
2.70495 0.61959 0.56886

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVQZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.875 0.000 0.000
B2 -0.875 0.000 0.000
H3 0.000 0.000 0.972
H4 0.000 0.000 -0.972
H5 1.447 1.036 0.000
H6 1.447 -1.036 0.000
H7 -1.447 1.036 0.000
H8 -1.447 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75051.30771.30771.18341.18342.54272.5427
B21.75051.30771.30772.54272.54271.18341.1834
H31.30771.30771.94332.02762.02762.02762.0276
H41.30771.30771.94332.02762.02762.02762.0276
H51.18342.54272.02762.02762.07262.89343.5592
H61.18342.54272.02762.02762.07263.55922.8934
H72.54271.18342.02762.02762.89343.55922.0726
H82.54271.18342.02762.02763.55922.89342.0726

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.025 B1 H4 B2 84.025
H3 B1 H4 95.975 H3 B1 H5 108.857
H3 B1 H6 108.857 H3 B2 H4 95.975
H3 B2 H7 108.857 H3 B2 H8 108.857
H4 B1 H5 108.857 H4 B1 H6 108.857
H4 B2 H7 108.857 H4 B2 H8 108.857
H5 B1 H6 122.250 H7 B2 H8 122.250
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability