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All results from a given calculation for B2H6 (Diborane)

using model chemistry: B3LYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-53.309571
Energy at 298.15K-53.315459
HF Energy-53.309571
Nuclear repulsion energy32.204447
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 B3LYP/6-311+G(3df,2p)
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 2620 2534 0.00 293.02 0.07 0.13
2 Ag 2176 2104 0.00 79.27 0.05 0.10
3 Ag 1205 1165 0.00 5.75 0.65 0.79
4 Ag 800 773 0.00 18.51 0.15 0.26
5 Au 850 822 0.00 0.00 0.00 0.00
6 B1g 2694 2605 0.00 115.93 0.75 0.86
7 B1g 939 908 0.00 0.52 0.75 0.86
8 B1u 1990 1925 7.87 0.00 0.00 0.00
9 B1u 991 959 23.58 0.00 0.00 0.00
10 B2g 1856 1795 0.00 3.55 0.75 0.86
11 B2g 893 863 0.00 0.08 0.75 0.86
12 B2u 2709 2619 172.70 0.00 0.00 0.00
13 B2u 951 919 0.31 0.00 0.00 0.00
14 B2u 360 348 16.67 0.00 0.00 0.00
15 B3g 1018 985 0.00 5.46 0.75 0.86
16 B3u 2607 2521 144.76 0.00 0.00 0.00
17 B3u 1712 1656 457.43 0.00 0.00 0.00
18 B3u 1197 1157 75.44 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13783.2 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 13328.4 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 B3LYP/6-311+G(3df,2p)
ABC
2.71084 0.61377 0.56439

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.879 0.000 0.000
B2 -0.879 0.000 0.000
H3 0.000 0.000 0.973
H4 0.000 0.000 -0.973
H5 1.456 1.034 0.000
H6 1.456 -1.034 0.000
H7 -1.456 1.034 0.000
H8 -1.456 -1.034 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.75801.31111.31111.18421.18422.55372.5537
B21.75801.31111.31112.55372.55371.18421.1842
H31.31111.31111.94572.03362.03362.03362.0336
H41.31111.31111.94572.03362.03362.03362.0336
H51.18422.55372.03362.03362.06822.91203.5717
H61.18422.55372.03362.03362.06823.57172.9120
H72.55371.18422.03362.03362.91203.57172.0682
H82.55371.18422.03362.03363.57172.91202.0682

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.197 B1 H4 B2 84.197
H3 B1 H4 95.803 H3 B1 H5 109.066
H3 B1 H6 109.066 H3 B2 H4 95.803
H3 B2 H7 109.066 H3 B2 H8 109.066
H4 B1 H5 109.066 H4 B1 H6 109.066
H4 B2 H7 109.066 H4 B2 H8 109.066
H5 B1 H6 121.679 H7 B2 H8 121.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.419      
2 B -0.419      
3 H 0.238      
4 H 0.238      
5 H 0.091      
6 H 0.091      
7 H 0.091      
8 H 0.091      


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 -18.960 0.000 0.000
y 0.000 -18.033 0.000
z 0.000 0.000 -14.941
Traceless
 xyz
x -2.473 0.000 0.000
y 0.000 -1.083 0.000
z 0.000 0.000 3.556
Polar
3z2-r27.112
x2-y2-0.927
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.918 0.000 0.000
y 0.000 4.815 0.000
z 0.000 0.000 4.154


<r2> (average value of r2) Å2
<r2> 33.189
(<r2>)1/2 5.761