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All results from a given calculation for B2H6 (Diborane)

using model chemistry: HF/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-52.815987
Energy at 298.15K-52.821990
HF Energy-52.815987
Nuclear repulsion energy31.754622
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/cc-pVDZ
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 2715 2465 0.00 277.14 0.11 0.20
2 Ag 2248 2041 0.00 95.65 0.09 0.17
3 Ag 1277 1160 0.00 8.10 0.75 0.86
4 Ag 822 746 0.00 20.07 0.19 0.31
5 Au 873 793 0.00 0.00 0.60 0.75
6 B1g 2791 2534 0.00 113.27 0.75 0.86
7 B1g 978 888 0.00 1.04 0.75 0.86
8 B1u 2028 1841 52.20 0.00 0.00 0.00
9 B1u 1051 954 22.61 0.00 0.00 0.00
10 B2g 1879 1707 0.00 6.79 0.75 0.86
11 B2g 879 798 0.00 3.26 0.75 0.86
12 B2u 2805 2547 267.96 0.00 0.00 0.00
13 B2u 1076 977 4.28 0.00 0.00 0.00
14 B2u 396 360 13.62 0.00 0.00 0.00
15 B3g 1142 1037 0.00 33.48 0.75 0.86
16 B3u 2693 2445 201.56 0.00 0.00 0.00
17 B3u 1771 1608 762.23 0.00 0.00 0.00
18 B3u 1256 1140 127.79 0.00 0.75 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14338.8 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 13019.6 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 HF/cc-pVDZ
ABC
2.65239 0.59290 0.54570

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.897 0.000 0.000
B2 -0.897 0.000 0.000
H3 0.000 0.000 0.983
H4 0.000 0.000 -0.983
H5 1.474 1.046 0.000
H6 1.474 -1.046 0.000
H7 -1.474 1.046 0.000
H8 -1.474 -1.046 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.79431.33101.33101.19431.19432.59172.5917
B21.79431.33101.33102.59172.59171.19431.1943
H31.33101.33101.96632.05752.05752.05752.0575
H41.33101.33101.96632.05752.05752.05752.0575
H51.19432.59172.05752.05752.09122.94863.6149
H61.19432.59172.05752.05752.09123.61492.9486
H72.59171.19432.05752.05752.94863.61492.0912
H82.59171.19432.05752.05753.61492.94862.0912

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.763 B1 H4 B2 84.763
H3 B1 H4 95.237 H3 B1 H5 109.010
H3 B1 H6 109.010 H3 B2 H4 95.237
H3 B2 H7 109.010 H3 B2 H8 109.010
H4 B1 H5 109.010 H4 B1 H6 109.010
H4 B2 H7 109.010 H4 B2 H8 109.010
H5 B1 H6 122.206 H7 B2 H8 122.206
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.031      
2 B 0.031      
3 H 0.029      
4 H 0.029      
5 H -0.030      
6 H -0.030      
7 H -0.030      
8 H -0.030      


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 -18.951 0.000 0.000
y 0.000 -18.204 0.000
z 0.000 0.000 -15.101
Traceless
 xyz
x -2.299 0.000 0.000
y 0.000 -1.178 0.000
z 0.000 0.000 3.477
Polar
3z2-r26.953
x2-y2-0.747
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.533 0.000 0.000
y 0.000 4.286 0.000
z 0.000 0.000 3.489


<r2> (average value of r2) Å2
<r2> 33.928
(<r2>)1/2 5.825