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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-53.311675
Energy at 298.15K-53.317571
HF Energy-53.311675
Nuclear repulsion energy32.183276
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 B3LYP/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 2622 2534 0.00 277.09 0.09 0.16
2 Ag 2179 2106 0.00 76.21 0.07 0.12
3 Ag 1205 1164 0.00 7.79 0.72 0.84
4 Ag 800 774 0.00 18.29 0.17 0.28
5 Au 850 822 0.00 0.00 0.00 0.00
6 B1g 2695 2605 0.00 112.98 0.75 0.86
7 B1g 940 909 0.00 0.77 0.75 0.86
8 B1u 1995 1929 8.59 0.00 0.00 0.00
9 B1u 992 959 22.93 0.00 0.00 0.00
10 B2g 1860 1797 0.00 3.93 0.75 0.86
11 B2g 894 864 0.00 0.38 0.75 0.86
12 B2u 2710 2620 171.27 0.00 0.00 0.00
13 B2u 954 923 0.30 0.00 0.00 0.00
14 B2u 361 349 16.69 0.00 0.00 0.00
15 B3g 1022 988 0.00 15.71 0.75 0.86
16 B3u 2609 2521 144.03 0.00 0.00 0.00
17 B3u 1716 1658 457.80 0.00 0.00 0.00
18 B3u 1197 1157 74.35 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13800.4 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 13339.4 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 B3LYP/cc-pVTZ
ABC
2.70598 0.61316 0.56381

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

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 0.974
H4 0.000 0.000 -0.974
H5 1.457 1.035 0.000
H6 1.457 -1.035 0.000
H7 -1.457 1.035 0.000
H8 -1.457 -1.035 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75881.31211.31211.18511.18512.55512.5551
B21.75881.31211.31212.55512.55511.18511.1851
H31.31211.31211.94772.03512.03512.03512.0351
H41.31211.31211.94772.03512.03512.03512.0351
H51.18512.55512.03512.03512.06992.91343.5739
H61.18512.55512.03512.03512.06993.57392.9134
H72.55511.18512.03512.03512.91343.57392.0699
H82.55511.18512.03512.03513.57392.91342.0699

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.164 B1 H4 B2 84.164
H3 B1 H4 95.836 H3 B1 H5 109.056
H3 B1 H6 109.056 H3 B2 H4 95.836
H3 B2 H7 109.056 H3 B2 H8 109.056
H4 B1 H5 109.056 H4 B1 H6 109.056
H4 B2 H7 109.056 H4 B2 H8 109.056
H5 B1 H6 121.693 H7 B2 H8 121.693
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.211      
2 B -0.211      
3 H 0.112      
4 H 0.112      
5 H 0.050      
6 H 0.050      
7 H 0.050      
8 H 0.050      


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 -0.001 0.000 0.000 0.001


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.003 0.000 0.000
y 0.000 -18.049 0.000
z 0.000 0.000 -14.916
Traceless
 xyz
x -2.521 0.000 0.000
y 0.000 -1.089 0.000
z 0.000 0.000 3.610
Polar
3z2-r27.220
x2-y2-0.954
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.865 0.000 0.000
y 0.000 4.652 0.000
z 0.000 0.000 3.874


<r2> (average value of r2) Å2
<r2> 33.222
(<r2>)1/2 5.764