return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for B2H6 (Diborane)

using model chemistry: MP3=FULL/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 MP3=FULL/6-311G*
 hartrees
Energy at 0K-53.077410
Energy at 298.15K-53.083322
HF Energy-52.817994
Nuclear repulsion energy32.065172
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 MP3=FULL/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 2630 2630 0.00      
2 Ag 2187 2187 0.00      
3 Ag 1206 1206 0.00      
4 Ag 832 832 0.00      
5 Au 867 867 0.00      
6 B1g 2712 2712 0.00      
7 B1g 950 950 0.00      
8 B1u 2041 2041 4.36      
9 B1u 1001 1001 12.53      
10 B2g 1896 1896 0.00      
11 B2g 912 912 0.00      
12 B2u 2726 2726 160.99      
13 B2u 968 968 0.66      
14 B2u 356 356 15.66      
15 B3g 1074 1074 0.00      
16 B3u 2615 2615 141.93      
17 B3u 1739 1739 500.10      
18 B3u 1190 1190 65.46      

Unscaled Zero Point Vibrational Energy (zpe) 13950.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13950.5 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 MP3=FULL/6-311G*
ABC
2.65836 0.61268 0.56304

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.986
H4 0.000 0.000 -0.986
H5 1.456 1.043 0.000
H6 1.456 -1.043 0.000
H7 -1.456 1.043 0.000
H8 -1.456 -1.043 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75791.32061.32061.19171.19172.55722.5572
B21.75791.32061.32062.55722.55721.19171.1917
H31.32061.32061.97112.04412.04412.04412.0441
H41.32061.32061.97112.04412.04412.04412.0441
H51.19172.55722.04412.04412.08552.91193.5817
H61.19172.55722.04412.04412.08553.58172.9119
H72.55721.19172.04412.04412.91193.58172.0855
H82.55721.19172.04412.04413.58172.91192.0855

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.456 B1 H4 B2 83.456
H3 B1 H4 96.544 H3 B1 H5 108.799
H3 B1 H6 108.799 H3 B2 H4 96.544
H3 B2 H7 108.799 H3 B2 H8 108.799
H4 B1 H5 108.799 H4 B1 H6 108.799
H4 B2 H7 108.799 H4 B2 H8 108.799
H5 B1 H6 122.088 H7 B2 H8 122.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability