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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP4=FULL/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 MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-53.175450
Energy at 298.15K-53.181416
HF Energy-52.834725
Nuclear repulsion energy32.357145
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 MP4=FULL/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 2656 2557 0.00      
2 Ag 2211 2129 0.00      
3 Ag 1231 1185 0.00      
4 Ag 836 805 0.00      
5 Au 891 858 0.00      
6 B1g 2743 2641 0.00      
7 B1g 942 907 0.00      
8 B1u 2053 1976 0.00      
9 B1u 1001 964 0.00      
10 B2g 1923 1852 0.00      
11 B2g 921 887 0.00      
12 B2u 2756 2653 0.00      
13 B2u 986 949 0.00      
14 B2u 373 359 0.00      
15 B3g 1125 1084 0.00      
16 B3u 2640 2543 0.00      
17 B3u 1777 1711 0.00      
18 B3u 1217 1172 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14139.8 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 13615.2 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 MP4=FULL/cc-pVTZ
ABC
2.71128 0.62276 0.57161

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/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 0.970
H4 0.000 0.000 -0.970
H5 1.443 1.035 0.000
H6 1.443 -1.035 0.000
H7 -1.443 1.035 0.000
H8 -1.443 -1.035 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74601.30521.30521.18161.18162.53662.5366
B21.74601.30521.30522.53662.53661.18161.1816
H31.30521.30521.94062.02352.02352.02352.0235
H41.30521.30521.94062.02352.02352.02352.0235
H51.18162.53662.02352.02352.07032.88563.5515
H61.18162.53662.02352.02352.07033.55152.8856
H72.53661.18162.02352.02352.88563.55152.0703
H82.53661.18162.02352.02353.55152.88562.0703

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.955 B1 H4 B2 83.955
H3 B1 H4 96.045 H3 B1 H5 108.816
H3 B1 H6 108.816 H3 B2 H4 96.045
H3 B2 H7 108.816 H3 B2 H8 108.816
H4 B1 H5 108.816 H4 B1 H6 108.816
H4 B2 H7 108.816 H4 B2 H8 108.816
H5 B1 H6 122.339 H7 B2 H8 122.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability