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All results from a given calculation for B2H6 (Diborane)

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-52.772248
Energy at 298.15K-52.778209
HF Energy-52.772248
Nuclear repulsion energy31.613340
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/LANL2DZ
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 2736 2462 0.00 228.94 0.11 0.20
2 Ag 2158 1942 0.00 93.06 0.15 0.26
3 Ag 1229 1106 0.00 22.62 0.75 0.86
4 Ag 787 708 0.00 21.52 0.32 0.49
5 Au 883 794 0.00 0.00 0.51 0.68
6 B1g 2835 2551 0.00 95.69 0.75 0.86
7 B1g 974 876 0.00 10.40 0.75 0.86
8 B1u 1904 1713 102.75 0.00 0.00 0.00
9 B1u 1066 960 2.98 0.00 0.75 0.86
10 B2g 1801 1621 0.00 10.15 0.75 0.86
11 B2g 817 736 0.00 0.00 0.75 0.86
12 B2u 2851 2565 295.37 0.00 0.75 0.86
13 B2u 1074 966 3.55 0.00 0.00 0.00
14 B2u 405 364 7.90 0.00 0.00 0.00
15 B3g 1169 1052 0.00 41.51 0.75 0.86
16 B3u 2714 2442 208.92 0.00 0.00 0.00
17 B3u 1719 1547 1125.15 0.00 0.00 0.00
18 B3u 1214 1093 140.81 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14167.0 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 12748.9 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/LANL2DZ
ABC
2.68143 0.57712 0.53290

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.915 0.000 0.000
B2 -0.915 0.000 0.000
H3 0.000 0.000 0.979
H4 0.000 0.000 -0.979
H5 1.480 1.039 0.000
H6 1.480 -1.039 0.000
H7 -1.480 1.039 0.000
H8 -1.480 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.83091.34031.34031.18261.18262.61092.6109
B21.83091.34031.34032.61092.61091.18261.1826
H31.34031.34031.95792.05622.05622.05622.0562
H41.34031.34031.95792.05622.05622.05622.0562
H51.18262.61092.05622.05622.07882.95933.6164
H61.18262.61092.05622.05622.07883.61642.9593
H72.61091.18262.05622.05622.95933.61642.0788
H82.61091.18262.05622.05623.61642.95932.0788

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 86.160 B1 H4 B2 86.160
H3 B1 H4 93.840 H3 B1 H5 109.017
H3 B1 H6 109.017 H3 B2 H4 93.840
H3 B2 H7 109.017 H3 B2 H8 109.017
H4 B1 H5 109.017 H4 B1 H6 109.017
H4 B2 H7 109.017 H4 B2 H8 109.017
H5 B1 H6 123.013 H7 B2 H8 123.013
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.237      
2 B -0.237      
3 H 0.061      
4 H 0.061      
5 H 0.088      
6 H 0.088      
7 H 0.088      
8 H 0.088      


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 -18.815 0.000 0.000
y 0.000 -17.841 0.000
z 0.000 0.000 -15.636
Traceless
 xyz
x -2.076 0.000 0.000
y 0.000 -0.615 0.000
z 0.000 0.000 2.691
Polar
3z2-r25.383
x2-y2-0.974
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.835 0.000 0.000
y 0.000 3.360 0.000
z 0.000 0.000 2.771


<r2> (average value of r2) Å2
<r2> 34.263
(<r2>)1/2 5.853