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All results from a given calculation for B2H6 (Diborane)

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-52.930526
Energy at 298.15K-52.936478
HF Energy-52.930526
Nuclear repulsion energy32.109654
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 M06-2X/3-21G*
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 2713 2570 0.00 196.46 0.11 0.19
2 Ag 2201 2085 0.00 90.83 0.10 0.18
3 Ag 1212 1148 0.00 13.28 0.75 0.86
4 Ag 811 768 0.00 17.09 0.26 0.41
5 Au 895 847 0.00 0.00 0.00 0.00
6 B1g 2805 2657 0.00 81.03 0.75 0.86
7 B1g 926 877 0.00 1.63 0.75 0.86
8 B1u 2000 1895 14.99 0.00 0.00 0.00
9 B1u 1017 964 9.43 0.00 0.00 0.00
10 B2g 1925 1824 0.00 3.92 0.75 0.86
11 B2g 922 874 0.00 3.09 0.75 0.86
12 B2u 2817 2668 110.50 0.00 0.00 0.00
13 B2u 992 940 1.22 0.00 0.00 0.00
14 B2u 384 363 8.10 0.00 0.00 0.00
15 B3g 1133 1073 0.00 40.17 0.75 0.86
16 B3u 2704 2561 99.06 0.00 0.00 0.00
17 B3u 1768 1674 504.22 0.00 0.00 0.00
18 B3u 1212 1148 69.52 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 14218.7 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 13468.0 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 M06-2X/3-21G*
ABC
2.68359 0.61017 0.56036

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.884 0.000 0.000
B2 -0.884 0.000 0.000
H3 0.000 0.000 0.974
H4 0.000 0.000 -0.974
H5 1.452 1.041 0.000
H6 1.452 -1.041 0.000
H7 -1.452 1.041 0.000
H8 -1.452 -1.041 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76851.31571.31571.18571.18572.55762.5576
B21.76851.31571.31572.55762.55761.18571.1857
H31.31571.31571.94852.03492.03492.03492.0349
H41.31571.31571.94852.03492.03492.03492.0349
H51.18572.55762.03492.03492.08202.90383.5730
H61.18572.55762.03492.03492.08203.57302.9038
H72.55761.18572.03492.03492.90383.57302.0820
H82.55761.18572.03492.03493.57302.90382.0820

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.457 B1 H4 B2 84.457
H3 B1 H4 95.543 H3 B1 H5 108.769
H3 B1 H6 108.769 H3 B2 H4 95.543
H3 B2 H7 108.769 H3 B2 H8 108.769
H4 B1 H5 108.769 H4 B1 H6 108.769
H4 B2 H7 108.769 H4 B2 H8 108.769
H5 B1 H6 122.795 H7 B2 H8 122.795
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.270      
2 B -0.270      
3 H 0.090      
4 H 0.090      
5 H 0.090      
6 H 0.090      
7 H 0.090      
8 H 0.090      


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 -18.468 0.000 0.000
y 0.000 -17.898 0.000
z 0.000 0.000 -15.542
Traceless
 xyz
x -1.748 0.000 0.000
y 0.000 -0.893 0.000
z 0.000 0.000 2.641
Polar
3z2-r25.282
x2-y2-0.570
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.170 0.000 0.000
y 0.000 3.548 0.000
z 0.000 0.000 2.997


<r2> (average value of r2) Å2
<r2> 33.291
(<r2>)1/2 5.770