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All results from a given calculation for B2H6 (Diborane)

using model chemistry: PBE1PBE/6-31G

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/6-31G
 hartrees
Energy at 0K-53.169187
Energy at 298.15K-53.175097
HF Energy-53.169187
Nuclear repulsion energy32.019864
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/6-31G
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 2660 2543 0.00 221.31 0.12 0.22
2 Ag 2198 2101 0.00 97.61 0.09 0.16
3 Ag 1200 1147 0.00 17.23 0.72 0.84
4 Ag 817 781 0.00 17.76 0.22 0.36
5 Au 870 832 0.00 0.00 0.00 0.00
6 B1g 2745 2624 0.00 103.23 0.75 0.86
7 B1g 953 911 0.00 1.95 0.75 0.86
8 B1u 2010 1922 12.39 0.00 0.00 0.00
9 B1u 1002 958 9.67 0.00 0.00 0.00
10 B2g 1871 1788 0.00 6.02 0.75 0.86
11 B2g 902 862 0.00 5.48 0.75 0.86
12 B2u 2760 2638 173.16 0.00 0.00 0.00
13 B2u 959 917 0.49 0.00 0.00 0.00
14 B2u 369 353 10.83 0.00 0.00 0.00
15 B3g 1042 996 0.00 44.93 0.75 0.86
16 B3u 2645 2528 136.86 0.00 0.00 0.00
17 B3u 1706 1630 453.02 0.00 0.00 0.00
18 B3u 1203 1150 65.09 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13955.7 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 13340.3 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/6-31G
ABC
2.67967 0.60693 0.55848

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.883 0.000 0.000
B2 -0.883 0.000 0.000
H3 0.000 0.000 0.981
H4 0.000 0.000 -0.981
H5 1.465 1.039 0.000
H6 1.465 -1.039 0.000
H7 -1.465 1.039 0.000
H8 -1.465 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76701.32041.32041.19031.19032.56762.5676
B21.76701.32041.32042.56762.56761.19031.1903
H31.32041.32041.96252.04622.04622.04622.0462
H41.32041.32041.96252.04622.04622.04622.0462
H51.19032.56762.04622.04622.07762.92933.5913
H61.19032.56762.04622.04622.07763.59132.9293
H72.56761.19032.04622.04622.92933.59132.0776
H82.56761.19032.04622.04623.59132.92932.0776

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.999 B1 H4 B2 83.999
H3 B1 H4 96.001 H3 B1 H5 109.068
H3 B1 H6 109.068 H3 B2 H4 96.001
H3 B2 H7 109.068 H3 B2 H8 109.068
H4 B1 H5 109.068 H4 B1 H6 109.068
H4 B2 H7 109.068 H4 B2 H8 109.068
H5 B1 H6 121.550 H7 B2 H8 121.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.105      
2 B -0.105      
3 H 0.057      
4 H 0.057      
5 H 0.024      
6 H 0.024      
7 H 0.024      
8 H 0.024      


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 -18.499 0.000 0.000
y 0.000 -17.556 0.000
z 0.000 0.000 -14.959
Traceless
 xyz
x -2.241 0.000 0.000
y 0.000 -0.827 0.000
z 0.000 0.000 3.068
Polar
3z2-r26.137
x2-y2-0.943
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.429 0.000 0.000
y 0.000 3.934 0.000
z 0.000 0.000 3.129


<r2> (average value of r2) Å2
<r2> 33.249
(<r2>)1/2 5.766