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All results from a given calculation for B2H6 (Diborane)

using model chemistry: HF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at HF/6-31+G**
 hartrees
Energy at 0K-52.820864
Energy at 298.15K-52.826909
HF Energy-52.820864
Nuclear repulsion energy32.049580
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 HF/6-31+G**
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 2726 2465 0.00 261.51 0.12 0.22
2 Ag 2280 2062 0.00 89.62 0.10 0.18
3 Ag 1298 1174 0.00 10.51 0.72 0.84
4 Ag 829 750 0.00 18.11 0.20 0.33
5 Au 892 807 0.00 0.00 0.50 0.67
6 B1g 2795 2527 0.00 116.60 0.75 0.86
7 B1g 997 902 0.00 1.45 0.75 0.86
8 B1u 2045 1849 56.54 0.00 0.00 0.00
9 B1u 1065 963 23.93 0.00 0.00 0.00
10 B2g 1915 1732 0.00 7.57 0.75 0.86
11 B2g 903 817 0.00 4.23 0.75 0.86
12 B2u 2811 2542 287.61 0.00 0.00 0.00
13 B2u 1111 1005 11.25 0.00 0.00 0.00
14 B2u 415 375 11.40 0.00 0.00 0.00
15 B3g 1173 1061 0.00 29.21 0.75 0.86
16 B3u 2706 2447 194.53 0.00 0.00 0.00
17 B3u 1805 1632 768.71 0.00 0.00 0.00
18 B3u 1280 1158 137.41 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14523.3 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 13131.9 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 HF/6-31+G**
ABC
2.70541 0.60390 0.55559

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.888 0.000 0.000
B2 -0.888 0.000 0.000
H3 0.000 0.000 0.971
H4 0.000 0.000 -0.971
H5 1.463 1.036 0.000
H6 1.463 -1.036 0.000
H7 -1.463 1.036 0.000
H8 -1.463 -1.036 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77691.31641.31641.18511.18512.57002.5700
B21.77691.31641.31642.57002.57001.18511.1851
H31.31641.31641.94282.03932.03932.03932.0393
H41.31641.31641.94282.03932.03932.03932.0393
H51.18512.57002.03932.03932.07262.92673.5862
H61.18512.57002.03932.03932.07263.58622.9267
H72.57001.18512.03932.03932.92673.58622.0726
H82.57001.18512.03932.03933.58622.92672.0726

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.894 B1 H4 B2 84.894
H3 B1 H4 95.106 H3 B1 H5 109.111
H3 B1 H6 109.111 H3 B2 H4 95.106
H3 B2 H7 109.111 H3 B2 H8 109.111
H4 B1 H5 109.111 H4 B1 H6 109.111
H4 B2 H7 109.111 H4 B2 H8 109.111
H5 B1 H6 121.961 H7 B2 H8 121.961
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.105      
2 B 0.105      
3 H -0.036      
4 H -0.036      
5 H -0.035      
6 H -0.035      
7 H -0.035      
8 H -0.035      


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 -19.000 0.000 0.000
y 0.000 -18.330 0.000
z 0.000 0.000 -15.200
Traceless
 xyz
x -2.234 0.000 0.000
y 0.000 -1.230 0.000
z 0.000 0.000 3.465
Polar
3z2-r26.930
x2-y2-0.669
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.374 0.000 0.000
y 0.000 4.222 0.000
z 0.000 0.000 3.264


<r2> (average value of r2) Å2
<r2> 33.578
(<r2>)1/2 5.795