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All results from a given calculation for B2H6 (Diborane)

using model chemistry: LSDA/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-52.937878
Energy at 298.15K-52.943556
HF Energy-52.937878
Nuclear repulsion energy32.155365
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 LSDA/6-31G(2df,p)
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 2578 2537 0.00      
2 Ag 2171 2136 0.00      
3 Ag 1132 1114 0.00      
4 Ag 820 807 0.00      
5 Au 829 816 0.00      
6 B1g 2663 2620 0.00      
7 B1g 898 884 0.00      
8 B1u 2044 2012 0.12      
9 B1u 938 923 17.19      
10 B2g 1886 1856 0.00      
11 B2g 878 864 0.00      
12 B2u 2675 2632 97.19      
13 B2u 822 809 1.16      
14 B2u 269 265 22.01      
15 B3g 893 879 0.00      
16 B3u 2567 2526 112.22      
17 B3u 1694 1667 267.88      
18 B3u 1134 1115 36.74      

Unscaled Zero Point Vibrational Energy (zpe) 13446.2 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 13231.1 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 LSDA/6-31G(2df,p)
ABC
2.63553 0.62329 0.57138

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.868 0.000 0.000
B2 -0.868 0.000 0.000
H3 0.000 0.000 0.988
H4 0.000 0.000 -0.988
H5 1.451 1.048 0.000
H6 1.451 -1.048 0.000
H7 -1.451 1.048 0.000
H8 -1.451 -1.048 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.73631.31561.31561.19891.19892.54452.5445
B21.73631.31561.31562.54452.54451.19891.1989
H31.31561.31561.97702.04442.04442.04442.0444
H41.31561.31561.97702.04442.04442.04442.0444
H51.19892.54452.04442.04442.09582.90123.5790
H61.19892.54452.04442.04442.09583.57902.9012
H72.54451.19892.04442.04442.90123.57902.0958
H82.54451.19892.04442.04443.57902.90122.0958

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 82.582 B1 H4 B2 82.582
H3 B1 H4 97.418 H3 B1 H5 108.698
H3 B1 H6 108.698 H3 B2 H4 97.418
H3 B2 H7 108.698 H3 B2 H8 108.698
H4 B1 H5 108.698 H4 B1 H6 108.698
H4 B2 H7 108.698 H4 B2 H8 108.698
H5 B1 H6 121.867 H7 B2 H8 121.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.226      
2 B -0.226      
3 H 0.191      
4 H 0.191      
5 H 0.018      
6 H 0.018      
7 H 0.018      
8 H 0.018      


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 -18.619 0.000 0.000
y 0.000 -17.298 0.000
z 0.000 0.000 -14.459
Traceless
 xyz
x -2.741 0.000 0.000
y 0.000 -0.758 0.000
z 0.000 0.000 3.499
Polar
3z2-r26.998
x2-y2-1.322
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.624 0.000 0.000
y 0.000 4.304 0.000
z 0.000 0.000 3.454


<r2> (average value of r2) Å2
<r2> 32.788
(<r2>)1/2 5.726