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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-52.644237
Energy at 298.15K-52.650053
HF Energy-52.644237
Nuclear repulsion energy31.906910
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/STO-3G
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 3025 2699 0.00 61.72 0.16 0.28
2 Ag 2323 2073 0.00 36.06 0.24 0.38
3 Ag 1334 1190 0.00 17.32 0.74 0.85
4 Ag 827 738 0.00 11.69 0.42 0.59
5 Au 927 827 0.00 0.00 0.00 0.00
6 B1g 3177 2835 0.00 43.97 0.75 0.86
7 B1g 1017 907 0.00 7.23 0.75 0.86
8 B1u 2194 1958 0.01 0.00 0.00 0.00
9 B1u 1099 981 46.18 0.00 0.00 0.00
10 B2g 1833 1636 0.00 8.69 0.75 0.86
11 B2g 899 802 0.00 0.53 0.75 0.86
12 B2u 3179 2837 2.43 0.00 0.00 0.00
13 B2u 1076 960 0.29 0.00 0.00 0.00
14 B2u 379 338 18.11 0.00 0.00 0.00
15 B3g 1207 1078 0.00 17.15 0.75 0.86
16 B3u 3023 2698 11.17 0.00 0.00 0.00
17 B3u 1682 1501 599.15 0.00 0.00 0.00
18 B3u 1323 1181 114.90 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 15261.5 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 13619.4 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/STO-3G
ABC
2.72485 0.58879 0.54590

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.905 0.000 0.000
B2 -0.905 0.000 0.000
H3 0.000 0.000 0.988
H4 0.000 0.000 -0.988
H5 1.464 1.023 0.000
H6 1.464 -1.023 0.000
H7 -1.464 1.023 0.000
H8 -1.464 -1.023 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.80931.33981.33981.16591.16592.58032.5803
B21.80931.33981.33982.58032.58031.16591.1659
H31.33981.33981.97662.04132.04132.04132.0413
H41.33981.33981.97662.04132.04132.04132.0413
H51.16592.58032.04132.04132.04582.92843.5722
H61.16592.58032.04132.04132.04583.57222.9284
H72.58031.16592.04132.04132.92843.57222.0458
H82.58031.16592.04132.04133.57222.92842.0458

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.939 B1 H4 B2 84.939
H3 B1 H4 95.061 H3 B1 H5 108.908
H3 B1 H6 108.908 H3 B2 H4 95.061
H3 B2 H7 108.908 H3 B2 H8 108.908
H4 B1 H5 108.908 H4 B1 H6 108.908
H4 B2 H7 108.908 H4 B2 H8 108.908
H5 B1 H6 122.639 H7 B2 H8 122.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.011      
2 B 0.011      
3 H 0.025      
4 H 0.025      
5 H -0.018      
6 H -0.018      
7 H -0.018      
8 H -0.018      


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 -17.733 0.000 0.000
y 0.000 -16.219 0.000
z 0.000 0.000 -14.136
Traceless
 xyz
x -2.555 0.000 0.000
y 0.000 -0.285 0.000
z 0.000 0.000 2.840
Polar
3z2-r25.681
x2-y2-1.514
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.928 0.000 0.000
y 0.000 1.812 0.000
z 0.000 0.000 1.527


<r2> (average value of r2) Å2
<r2> 32.910
(<r2>)1/2 5.737