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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-53.010309
Energy at 298.15K-53.016222
HF Energy-52.818062
Nuclear repulsion energy32.079883
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 MP2/6-311G*
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 2646 2515 0.00 231.04 0.13 0.24
2 Ag 2199 2090 0.00 82.68 0.07 0.13
3 Ag 1215 1154 0.00 9.39 0.71 0.83
4 Ag 828 787 0.00 19.07 0.19 0.32
5 Au 871 828 0.00 0.00 0.00 0.00
6 B1g 2730 2594 0.00 104.54 0.75 0.86
7 B1g 953 906 0.00 1.02 0.75 0.86
8 B1u 2048 1946 4.93 0.00 0.00 0.00
9 B1u 1004 954 14.33 0.00 0.00 0.00
10 B2g 1910 1815 0.00 6.18 0.75 0.86
11 B2g 912 867 0.00 4.44 0.75 0.86
12 B2u 2744 2608 166.85 0.00 0.00 0.00
13 B2u 969 921 0.78 0.00 0.00 0.00
14 B2u 353 336 15.65 0.00 0.00 0.00
15 B3g 1076 1023 0.00 33.76 0.75 0.86
16 B3u 2630 2499 146.08 0.00 0.00 0.00
17 B3u 1746 1659 510.64 0.00 0.00 0.00
18 B3u 1200 1141 70.87 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14017.2 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 13320.5 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 MP2/6-311G*
ABC
2.66569 0.61217 0.56246

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.880 0.000 0.000
B2 -0.880 0.000 0.000
H3 0.000 0.000 0.982
H4 0.000 0.000 -0.982
H5 1.455 1.042 0.000
H6 1.455 -1.042 0.000
H7 -1.455 1.042 0.000
H8 -1.455 -1.042 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76031.31901.31901.19031.19032.55722.5572
B21.76031.31901.31902.55722.55721.19031.1903
H31.31901.31901.96472.04172.04172.04172.0417
H41.31901.31901.96472.04172.04172.04172.0417
H51.19032.55722.04172.04172.08442.91013.5796
H61.19032.55722.04172.04172.08443.57962.9101
H72.55721.19032.04172.04172.91013.57962.0844
H82.55721.19032.04172.04173.57962.91012.0844

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.721 B1 H4 B2 83.721
H3 B1 H4 96.279 H3 B1 H5 108.803
H3 B1 H6 108.803 H3 B2 H4 96.279
H3 B2 H7 108.803 H3 B2 H8 108.803
H4 B1 H5 108.803 H4 B1 H6 108.803
H4 B2 H7 108.803 H4 B2 H8 108.803
H5 B1 H6 122.238 H7 B2 H8 122.238
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability