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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3LYP/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-53.312039
Energy at 298.15K-53.317937
HF Energy-53.312039
Nuclear repulsion energy32.183340
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/aug-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 2621 2536 0.00 310.76 0.06 0.12
2 Ag 2178 2107 0.00 82.03 0.05 0.10
3 Ag 1205 1166 0.00 6.36 0.62 0.77
4 Ag 800 774 0.00 18.48 0.14 0.25
5 Au 850 823 0.00 0.00 0.16 0.28
6 B1g 2695 2607 0.00 117.25 0.75 0.86
7 B1g 940 909 0.00 0.45 0.75 0.86
8 B1u 1995 1930 7.87 0.00 0.00 0.00
9 B1u 992 960 23.42 0.00 0.00 0.00
10 B2g 1859 1799 0.00 3.69 0.75 0.86
11 B2g 894 865 0.00 0.05 0.75 0.86
12 B2u 2710 2622 173.84 0.00 0.00 0.00
13 B2u 956 925 0.32 0.00 0.00 0.00
14 B2u 362 350 16.69 0.00 0.00 0.00
15 B3g 1022 989 0.00 5.62 0.75 0.86
16 B3u 2608 2523 145.06 0.00 0.00 0.00
17 B3u 1716 1660 457.35 0.00 0.00 0.00
18 B3u 1197 1158 75.40 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13799.1 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 13350.7 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 B3LYP/aug-cc-pVTZ
ABC
2.70582 0.61318 0.56381

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-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
B11.75871.31211.31211.18521.18522.55512.5551
B21.75871.31211.31212.55512.55511.18521.1852
H31.31211.31211.94752.03502.03502.03502.0350
H41.31211.31211.94752.03502.03502.03502.0350
H51.18522.55512.03502.03502.07012.91333.5739
H61.18522.55512.03502.03502.07013.57392.9133
H72.55511.18522.03502.03502.91333.57392.0701
H82.55511.18522.03502.03503.57392.91332.0701

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.168 B1 H4 B2 84.168
H3 B1 H4 95.832 H3 B1 H5 109.054
H3 B1 H6 109.054 H3 B2 H4 95.832
H3 B2 H7 109.054 H3 B2 H8 109.054
H4 B1 H5 109.054 H4 B1 H6 109.054
H4 B2 H7 109.054 H4 B2 H8 109.054
H5 B1 H6 121.700 H7 B2 H8 121.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.163      
2 B 0.163      
3 H 0.003      
4 H 0.003      
5 H -0.083      
6 H -0.083      
7 H -0.083      
8 H -0.083      


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 -18.979 0.000 0.000
y 0.000 -18.039 0.000
z 0.000 0.000 -14.922
Traceless
 xyz
x -2.498 0.000 0.000
y 0.000 -1.088 0.000
z 0.000 0.000 3.586
Polar
3z2-r27.173
x2-y2-0.940
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.964 0.000 0.000
y 0.000 4.855 0.000
z 0.000 0.000 4.197


<r2> (average value of r2) Å2
<r2> 33.216
(<r2>)1/2 5.763