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/daug-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 wB97X-D/daug-cc-pVTZ
 hartrees
Energy at 0K-53.285674
Energy at 298.15K-53.291555
HF Energy-53.285674
Nuclear repulsion energy32.133825
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/daug-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 2615 2615 0.00 304.28 0.06 0.12
2 Ag 2183 2183 0.00 84.74 0.05 0.09
3 Ag 1204 1204 0.00 5.90 0.67 0.80
4 Ag 813 813 0.00 19.56 0.14 0.25
5 Au 854 854 0.00 0.00 0.38 0.55
6 B1g 2691 2691 0.00 111.19 0.75 0.86
7 B1g 938 938 0.00 0.47 0.75 0.86
8 B1u 2025 2025 6.39 0.00 0.00 0.00
9 B1u 989 989 21.89 0.00 0.75 0.85
10 B2g 1883 1883 0.00 3.06 0.75 0.86
11 B2g 907 907 0.00 0.05 0.75 0.86
12 B2u 2705 2705 171.35 0.00 0.75 0.86
13 B2u 947 947 0.20 0.00 0.00 0.00
14 B2u 353 353 17.49 0.00 0.00 0.00
15 B3g 1030 1030 0.00 5.63 0.75 0.86
16 B3u 2600 2600 146.34 0.00 0.75 0.86
17 B3u 1710 1710 462.91 0.00 0.00 0.00
18 B3u 1196 1196 65.56 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13820.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13820.4 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/daug-cc-pVTZ
ABC
2.68241 0.61373 0.56413

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/daug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.878 0.000 0.000
B2 -0.878 0.000 0.000
H3 0.000 0.000 0.980
H4 0.000 0.000 -0.980
H5 1.457 1.039 0.000
H6 1.457 -1.039 0.000
H7 -1.457 1.039 0.000
H8 -1.457 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75631.31571.31571.18901.18902.55542.5554
B21.75631.31571.31572.55542.55541.18901.1890
H31.31571.31571.95952.03982.03982.03982.0398
H41.31571.31571.95952.03982.03982.03982.0398
H51.18902.55542.03982.03982.07752.91333.5781
H61.18902.55542.03982.03982.07753.57812.9133
H72.55541.18902.03982.03982.91333.57812.0775
H82.55541.18902.03982.03983.57812.91332.0775

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.739 B1 H4 B2 83.739
H3 B1 H4 96.261 H3 B1 H5 108.950
H3 B1 H6 108.950 H3 B2 H4 96.261
H3 B2 H7 108.950 H3 B2 H8 108.950
H4 B1 H5 108.950 H4 B1 H6 108.950
H4 B2 H7 108.950 H4 B2 H8 108.950
H5 B1 H6 121.770 H7 B2 H8 121.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.123      
2 B -0.123      
3 H 0.146      
4 H 0.146      
5 H -0.012      
6 H -0.012      
7 H -0.012      
8 H -0.012      


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 -18.811 0.000 0.000
y 0.000 -17.868 0.000
z 0.000 0.000 -14.809
Traceless
 xyz
x -2.472 0.000 0.000
y 0.000 -1.058 0.000
z 0.000 0.000 3.531
Polar
3z2-r27.061
x2-y2-0.943
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.939 0.000 0.000
y 0.000 4.859 0.000
z 0.000 0.000 4.201


<r2> (average value of r2) Å2
<r2> 33.154
(<r2>)1/2 5.758