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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBE1PBE/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 PBE1PBE/STO-3G
 hartrees
Energy at 0K-52.549720
Energy at 298.15K-52.555545
HF Energy-52.549720
Nuclear repulsion energy32.071953
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 PBE1PBE/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 3053 2693 0.00 59.50 0.17 0.29
2 Ag 2367 2088 0.00 35.60 0.24 0.38
3 Ag 1339 1181 0.00 17.35 0.74 0.85
4 Ag 857 756 0.00 11.18 0.42 0.59
5 Au 940 829 0.00 0.00 0.00 0.00
6 B1g 3206 2828 0.00 42.69 0.75 0.86
7 B1g 1025 904 0.00 7.06 0.75 0.86
8 B1u 2259 1993 1.09 0.00 0.00 0.00
9 B1u 1101 971 42.64 0.00 0.00 0.00
10 B2g 1886 1664 0.00 9.04 0.75 0.86
11 B2g 942 831 0.00 0.41 0.75 0.86
12 B2u 3208 2830 1.39 0.00 0.00 0.00
13 B2u 1056 931 0.01 0.00 0.00 0.00
14 B2u 362 319 20.76 0.00 0.00 0.00
15 B3g 1199 1058 0.00 16.96 0.75 0.86
16 B3u 3052 2692 9.27 0.00 0.00 0.00
17 B3u 1706 1505 555.09 0.00 0.00 0.00
18 B3u 1331 1174 93.44 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 15444.1 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 13623.3 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 PBE1PBE/STO-3G
ABC
2.72640 0.59980 0.55588

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.894 0.000 0.000
B2 -0.894 0.000 0.000
H3 0.000 0.000 0.991
H4 0.000 0.000 -0.991
H5 1.455 1.021 0.000
H6 1.455 -1.021 0.000
H7 -1.455 1.021 0.000
H8 -1.455 -1.021 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.78741.33481.33481.16521.16522.56132.5613
B21.78741.33481.33482.56132.56131.16521.1652
H31.33481.33481.98292.03552.03552.03552.0355
H41.33481.33481.98292.03552.03552.03552.0355
H51.16522.56132.03552.03552.04182.91063.5554
H61.16522.56132.03552.03552.04183.55542.9106
H72.56131.16522.03552.03552.91063.55542.0418
H82.56131.16522.03552.03553.55542.91062.0418

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.062 B1 H4 B2 84.062
H3 B1 H4 95.938 H3 B1 H5 108.827
H3 B1 H6 108.827 H3 B2 H4 95.938
H3 B2 H7 108.827 H3 B2 H8 108.827
H4 B1 H5 108.827 H4 B1 H6 108.827
H4 B2 H7 108.827 H4 B2 H8 108.827
H5 B1 H6 122.369 H7 B2 H8 122.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.023      
2 B -0.023      
3 H 0.043      
4 H 0.043      
5 H -0.010      
6 H -0.010      
7 H -0.010      
8 H -0.010      


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 -17.710 0.000 0.000
y 0.000 -16.098 0.000
z 0.000 0.000 -14.001
Traceless
 xyz
x -2.661 0.000 0.000
y 0.000 -0.243 0.000
z 0.000 0.000 2.903
Polar
3z2-r25.807
x2-y2-1.612
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.856 0.000 0.000
y 0.000 1.788 0.000
z 0.000 0.000 1.515


<r2> (average value of r2) Å2
<r2> 32.547
(<r2>)1/2 5.705