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All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP4/TZVP

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/TZVP
 hartrees
Energy at 0K-53.105680
Energy at 298.15K-53.111594
HF Energy-52.832503
Nuclear repulsion energy32.088091
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/TZVP
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 2658 2559 0.00      
2 Ag 2206 2125 0.00      
3 Ag 1228 1182 0.00      
4 Ag 814 784 0.00      
5 Au 857 825 0.00      
6 B1g 2740 2638 0.00      
7 B1g 955 919 0.00      
8 B1u 2025 1950 0.00      
9 B1u 1002 965 0.00      
10 B2g 1917 1846 0.00      
11 B2g 856 824 0.00      
12 B2u 2754 2652 0.00      
13 B2u 994 957 0.00      
14 B2u 365 351 0.00      
15 B3g 1050 1011 0.00      
16 B3u 2643 2545 0.00      
17 B3u 1777 1711 0.00      
18 B3u 1215 1170 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14027.0 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 13506.6 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 MP4/TZVP
ABC
2.68868 0.60900 0.55945

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.884 0.000 0.000
B2 -0.884 0.000 0.000
H3 0.000 0.000 0.973
H4 0.000 0.000 -0.973
H5 1.458 1.040 0.000
H6 1.458 -1.040 0.000
H7 -1.458 1.040 0.000
H8 -1.458 -1.040 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76791.31471.31471.18791.18792.56232.5623
B21.76791.31471.31472.56232.56231.18791.1879
H31.31471.31471.94642.03812.03812.03812.0381
H41.31471.31471.94642.03812.03812.03812.0381
H51.18792.56232.03812.03812.08012.91563.5816
H61.18792.56232.03812.03812.08013.58162.9156
H72.56231.18792.03812.03812.91563.58162.0801
H82.56231.18792.03812.03813.58162.91562.0801

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.498 B1 H4 B2 84.498
H3 B1 H4 95.502 H3 B1 H5 108.954
H3 B1 H6 108.954 H3 B2 H4 95.502
H3 B2 H7 108.954 H3 B2 H8 108.954
H4 B1 H5 108.954 H4 B1 H6 108.954
H4 B2 H7 108.954 H4 B2 H8 108.954
H5 B1 H6 122.224 H7 B2 H8 122.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability