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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B1B95/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 B1B95/STO-3G
 hartrees
Energy at 0K-52.587415
Energy at 298.15K-52.593236
HF Energy-52.587415
Nuclear repulsion energy32.064722
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 B1B95/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 3046 2690 0.00 60.89 0.17 0.28
2 Ag 2361 2085 0.00 35.61 0.23 0.37
3 Ag 1332 1177 0.00 17.53 0.74 0.85
4 Ag 849 750 0.00 11.35 0.42 0.59
5 Au 936 827 0.00 0.00 0.00 0.00
6 B1g 3199 2825 0.00 43.46 0.75 0.86
7 B1g 1017 898 0.00 7.35 0.75 0.86
8 B1u 2251 1987 0.67 0.00 0.00 0.00
9 B1u 1097 968 44.07 0.00 0.00 0.00
10 B2g 1895 1674 0.00 8.89 0.75 0.86
11 B2g 941 831 0.00 0.25 0.75 0.86
12 B2u 3201 2827 1.66 0.00 0.00 0.00
13 B2u 1065 940 0.06 0.00 0.00 0.00
14 B2u 363 320 18.94 0.00 0.00 0.00
15 B3g 1208 1067 0.00 17.41 0.75 0.86
16 B3u 3045 2688 9.83 0.00 0.00 0.00
17 B3u 1728 1526 566.15 0.00 0.00 0.00
18 B3u 1323 1168 97.87 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 15428.8 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 13623.6 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 B1B95/STO-3G
ABC
2.73409 0.59785 0.55396

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.896 0.000 0.000
B2 -0.896 0.000 0.000
H3 0.000 0.000 0.988
H4 0.000 0.000 -0.988
H5 1.456 1.021 0.000
H6 1.456 -1.021 0.000
H7 -1.456 1.021 0.000
H8 -1.456 -1.021 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.79241.33361.33361.16411.16412.56412.5641
B21.79241.33361.33362.56412.56411.16411.1641
H31.33361.33361.97512.03392.03392.03392.0339
H41.33361.33361.97512.03392.03392.03392.0339
H51.16412.56412.03392.03392.04142.91193.5562
H61.16412.56412.03392.03392.04143.55622.9119
H72.56411.16412.03392.03392.91193.55622.0414
H82.56411.16412.03392.03393.55622.91192.0414

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.449 B1 H4 B2 84.449
H3 B1 H4 95.551 H3 B1 H5 108.853
H3 B1 H6 108.853 H3 B2 H4 95.551
H3 B2 H7 108.853 H3 B2 H8 108.853
H4 B1 H5 108.853 H4 B1 H6 108.853
H4 B2 H7 108.853 H4 B2 H8 108.853
H5 B1 H6 122.519 H7 B2 H8 122.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.004      
2 B -0.004      
3 H 0.032      
4 H 0.032      
5 H -0.014      
6 H -0.014      
7 H -0.014      
8 H -0.014      


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 -17.730 0.000 0.000
y 0.000 -16.156 0.000
z 0.000 0.000 -14.084
Traceless
 xyz
x -2.609 0.000 0.000
y 0.000 -0.249 0.000
z 0.000 0.000 2.859
Polar
3z2-r25.717
x2-y2-1.573
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.874 0.000 0.000
y 0.000 1.801 0.000
z 0.000 0.000 1.503


<r2> (average value of r2) Å2
<r2> 32.616
(<r2>)1/2 5.711