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All results from a given calculation for B2H6 (Diborane)

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-52.836227
Energy at 298.15K-52.842261
HF Energy-52.836227
Nuclear repulsion energy32.047690
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/Def2TZVPP
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 2702 2449 0.00 274.55 0.09 0.16
2 Ag 2242 2032 0.00 76.73 0.08 0.14
3 Ag 1296 1175 0.00 5.77 0.74 0.85
4 Ag 821 744 0.00 19.57 0.16 0.27
5 Au 889 806 0.00 0.00 0.18 0.30
6 B1g 2769 2509 0.00 103.94 0.75 0.86
7 B1g 992 899 0.00 0.80 0.75 0.86
8 B1u 2018 1829 39.88 0.00 0.00 0.00
9 B1u 1061 962 27.59 0.00 0.73 0.85
10 B2g 1902 1724 0.00 4.80 0.75 0.86
11 B2g 901 817 0.00 0.00 0.75 0.86
12 B2u 2785 2524 250.69 0.00 0.00 0.00
13 B2u 1093 990 3.95 0.00 0.00 0.00
14 B2u 408 370 15.00 0.00 0.00 0.00
15 B3g 1160 1052 0.00 9.11 0.75 0.86
16 B3u 2682 2431 186.12 0.00 0.00 0.00
17 B3u 1787 1620 724.94 0.00 0.00 0.00
18 B3u 1277 1157 125.41 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14392.3 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 13045.1 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/Def2TZVPP
ABC
2.70460 0.60388 0.55601

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

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 0.975
H4 0.000 0.000 -0.975
H5 1.463 1.035 0.000
H6 1.463 -1.035 0.000
H7 -1.463 1.035 0.000
H8 -1.463 -1.035 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.77651.31871.31871.18381.18382.56892.5689
B21.77651.31871.31872.56892.56891.18381.1838
H31.31871.31871.94932.03992.03992.03992.0399
H41.31871.31871.94932.03992.03992.03992.0399
H51.18382.56892.03992.03992.07002.92593.5841
H61.18382.56892.03992.03992.07003.58412.9259
H72.56891.18382.03992.03992.92593.58412.0700
H82.56891.18382.03992.03993.58412.92592.0700

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.691 B1 H4 B2 84.691
H3 B1 H4 95.309 H3 B1 H5 109.086
H3 B1 H6 109.086 H3 B2 H4 95.309
H3 B2 H7 109.086 H3 B2 H8 109.086
H4 B1 H5 109.086 H4 B1 H6 109.086
H4 B2 H7 109.086 H4 B2 H8 109.086
H5 B1 H6 121.917 H7 B2 H8 121.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.017      
2 B 0.017      
3 H 0.011      
4 H 0.011      
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 -18.965 0.000 0.000
y 0.000 -18.183 0.000
z 0.000 0.000 -15.024
Traceless
 xyz
x -2.361 0.000 0.000
y 0.000 -1.188 0.000
z 0.000 0.000 3.549
Polar
3z2-r27.099
x2-y2-0.782
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.518 0.000 0.000
y 0.000 4.450 0.000
z 0.000 0.000 3.752


<r2> (average value of r2) Å2
<r2> 33.497
(<r2>)1/2 5.788