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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2=FULL/aug-cc-pVTZ

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=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-53.136934
Energy at 298.15K-53.142923
HF Energy-52.835022
Nuclear repulsion energy32.378382
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=FULL/aug-cc-pVTZ
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 2673 2544 0.00 284.93 0.06 0.12
2 Ag 2207 2100 0.00 89.51 0.04 0.08
3 Ag 1235 1175 0.00 4.97 0.72 0.84
4 Ag 838 797 0.00 18.60 0.15 0.26
5 Au 891 848 0.00 0.00 0.00 0.00
6 B1g 2758 2624 0.00 100.81 0.75 0.86
7 B1g 956 910 0.00 0.49 0.75 0.86
8 B1u 2052 1952 6.98 0.00 0.00 0.00
9 B1u 1009 960 26.65 0.00 0.00 0.00
10 B2g 1952 1857 0.00 4.42 0.75 0.86
11 B2g 921 876 0.00 0.08 0.75 0.86
12 B2u 2772 2638 165.37 0.00 0.00 0.00
13 B2u 990 941 0.79 0.00 0.00 0.00
14 B2u 390 371 16.70 0.00 0.00 0.00
15 B3g 1115 1061 0.00 5.59 0.75 0.86
16 B3u 2656 2527 142.11 0.00 0.00 0.00
17 B3u 1787 1700 482.13 0.00 0.00 0.00
18 B3u 1222 1163 73.62 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14212.3 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 13521.6 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 MP2=FULL/aug-cc-pVTZ
ABC
2.71576 0.62347 0.57221

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.873 0.000 0.000
B2 -0.873 0.000 0.000
H3 0.000 0.000 0.969
H4 0.000 0.000 -0.969
H5 1.442 1.035 0.000
H6 1.442 -1.035 0.000
H7 -1.442 1.035 0.000
H8 -1.442 -1.035 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74521.30401.30401.18081.18082.53512.5351
B21.74521.30401.30402.53512.53511.18081.1808
H31.30401.30401.93792.02182.02182.02182.0218
H41.30401.30401.93792.02182.02182.02182.0218
H51.18082.53512.02182.02182.06922.88353.5491
H61.18082.53512.02182.02182.06923.54912.8835
H72.53511.18082.02182.02182.88353.54912.0692
H82.53511.18082.02182.02183.54912.88352.0692

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.011 B1 H4 B2 84.011
H3 B1 H4 95.989 H3 B1 H5 108.817
H3 B1 H6 108.817 H3 B2 H4 95.989
H3 B2 H7 108.817 H3 B2 H8 108.817
H4 B1 H5 108.817 H4 B1 H6 108.817
H4 B2 H7 108.817 H4 B2 H8 108.817
H5 B1 H6 122.369 H7 B2 H8 122.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability