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: M06-2X/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at M06-2X/cc-pVDZ
 hartrees
Energy at 0K-53.234820
Energy at 298.15K-53.240660
HF Energy-53.234820
Nuclear repulsion energy31.915873
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 M06-2X/cc-pVDZ
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 2656 0.00 276.17 0.11 0.20
2 Ag 2207 2207 0.00 99.00 0.08 0.14
3 Ag 1183 1183 0.00 9.89 0.74 0.85
4 Ag 812 812 0.00 20.27 0.18 0.31
5 Au 840 840 0.00 0.00 0.73 0.84
6 B1g 2744 2744 0.00 112.38 0.75 0.86
7 B1g 914 914 0.00 1.54 0.75 0.86
8 B1u 2043 2043 12.08 0.00 0.00 0.00
9 B1u 984 984 15.78 0.00 0.00 0.00
10 B2g 1890 1890 0.00 4.00 0.75 0.86
11 B2g 875 875 0.00 4.00 0.75 0.86
12 B2u 2756 2756 175.38 0.00 0.00 0.00
13 B2u 936 936 0.12 0.00 0.00 0.00
14 B2u 331 331 15.24 0.00 0.00 0.00
15 B3g 1028 1028 0.00 31.64 0.75 0.86
16 B3u 2640 2640 152.55 0.00 0.00 0.00
17 B3u 1726 1726 527.29 0.00 0.00 0.00
18 B3u 1170 1170 69.57 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13866.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13866.5 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 M06-2X/cc-pVDZ
ABC
2.63912 0.60558 0.55615

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.886 0.000 0.000
B2 -0.886 0.000 0.000
H3 0.000 0.000 0.985
H4 0.000 0.000 -0.985
H5 1.462 1.048 0.000
H6 1.462 -1.048 0.000
H7 -1.462 1.048 0.000
H8 -1.462 -1.048 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77111.32481.32481.19631.19632.57082.5708
B21.77111.32481.32482.57082.57081.19631.1963
H31.32481.32481.97062.05112.05112.05112.0511
H41.32481.32481.97062.05112.05112.05112.0511
H51.19632.57082.05112.05112.09682.92363.5978
H61.19632.57082.05112.05112.09683.59782.9236
H72.57081.19632.05112.05112.92363.59782.0968
H82.57081.19632.05112.05113.59782.92362.0968

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.895 B1 H4 B2 83.895
H3 B1 H4 96.105 H3 B1 H5 108.784
H3 B1 H6 108.784 H3 B2 H4 96.105
H3 B2 H7 108.784 H3 B2 H8 108.784
H4 B1 H5 108.784 H4 B1 H6 108.784
H4 B2 H7 108.784 H4 B2 H8 108.784
H5 B1 H6 122.405 H7 B2 H8 122.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.094      
2 B -0.094      
3 H 0.092      
4 H 0.092      
5 H 0.001      
6 H 0.001      
7 H 0.001      
8 H 0.001      


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 -18.566 0.000 0.000
y 0.000 -17.669 0.000
z 0.000 0.000 -14.767
Traceless
 xyz
x -2.348 0.000 0.000
y 0.000 -1.002 0.000
z 0.000 0.000 3.351
Polar
3z2-r26.701
x2-y2-0.897
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.729 0.000 0.000
y 0.000 4.444 0.000
z 0.000 0.000 3.566


<r2> (average value of r2) Å2
<r2> 33.345
(<r2>)1/2 5.775