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: wB97X-D/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at wB97X-D/CEP-121G
 hartrees
Energy at 0K-9.148182
Energy at 298.15K-9.154051
HF Energy-9.148182
Nuclear repulsion energy18.564176
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 wB97X-D/CEP-121G
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 2621 2621 0.00 299.65 0.12 0.21
2 Ag 2112 2112 0.00 101.71 0.10 0.17
3 Ag 1163 1163 0.00 14.64 0.72 0.84
4 Ag 782 782 0.00 23.19 0.24 0.39
5 Au 844 844 0.00 0.00 0.06 0.00
6 B1g 2720 2720 0.00 116.55 0.75 0.86
7 B1g 925 925 0.00 4.08 0.75 0.86
8 B1u 1969 1969 13.31 0.00 0.00 0.00
9 B1u 1003 1003 7.22 0.00 0.75 0.00
10 B2g 1837 1837 0.00 8.15 0.75 0.86
11 B2g 895 895 0.00 7.04 0.75 0.86
12 B2u 2733 2733 226.48 0.00 0.00 0.00
13 B2u 941 941 0.68 0.00 0.00 0.00
14 B2u 348 348 13.78 0.00 0.00 0.00
15 B3g 1048 1048 0.00 48.34 0.75 0.86
16 B3u 2601 2601 159.08 0.00 0.00 0.00
17 B3u 1660 1660 596.17 0.00 0.75 0.00
18 B3u 1152 1152 76.63 0.00 0.75 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13676.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13676.7 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 wB97X-D/CEP-121G
ABC
2.62283 0.58236 0.53704

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.908 0.000 0.000
B2 -0.908 0.000 0.000
H3 0.000 0.000 0.994
H4 0.000 0.000 -0.994
H5 1.478 1.049 0.000
H6 1.478 -1.049 0.000
H7 -1.478 1.049 0.000
H8 -1.478 -1.049 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.81581.34631.34631.19381.19382.60622.6062
B21.81581.34631.34632.60622.60621.19381.1938
H31.34631.34631.98832.06712.06712.06712.0671
H41.34631.34631.98832.06712.06712.06712.0671
H51.19382.60622.06712.06712.09782.95583.6246
H61.19382.60622.06712.06712.09783.62462.9558
H72.60621.19382.06712.06712.95583.62462.0978
H82.60621.19382.06712.06713.62462.95582.0978

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.807 B1 H4 B2 84.807
H3 B1 H4 95.193 H3 B1 H5 108.783
H3 B1 H6 108.783 H3 B2 H4 95.193
H3 B2 H7 108.783 H3 B2 H8 108.783
H4 B1 H5 108.783 H4 B1 H6 108.783
H4 B2 H7 108.783 H4 B2 H8 108.783
H5 B1 H6 122.958 H7 B2 H8 122.958
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.161      
2 B -0.161      
3 H 0.076      
4 H 0.076      
5 H 0.042      
6 H 0.042      
7 H 0.042      
8 H 0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.588 0.000 0.000
y 0.000 -17.487 0.000
z 0.000 0.000 -14.960
Traceless
 xyz
x -2.364 0.000 0.000
y 0.000 -0.713 0.000
z 0.000 0.000 3.078
Polar
3z2-r26.155
x2-y2-1.101
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.567 0.000 0.000
y 0.000 4.046 0.000
z 0.000 0.000 3.205


<r2> (average value of r2) Å2
<r2> 30.685
(<r2>)1/2 5.539