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All results from a given calculation for B2H6 (Diborane)

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-52.931756
Energy at 298.15K-52.937435
HF Energy-52.931756
Nuclear repulsion energy32.138855
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*
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 2594 2546 0.00      
2 Ag 2197 2156 0.00      
3 Ag 1143 1121 0.00      
4 Ag 822 806 0.00      
5 Au 838 822 0.00      
6 B1g 2677 2627 0.00      
7 B1g 909 892 0.00      
8 B1u 2072 2033 0.75      
9 B1u 945 927 10.72      
10 B2g 1898 1862 0.00      
11 B2g 887 871 0.00      
12 B2u 2689 2639 117.37      
13 B2u 845 829 0.67      
14 B2u 263 258 17.83      
15 B3g 928 910 0.00      
16 B3u 2582 2534 115.35      
17 B3u 1708 1676 281.26      
18 B3u 1145 1124 37.10      

Unscaled Zero Point Vibrational Energy (zpe) 13570.2 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 13316.4 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 LSDA/6-31G*
ABC
2.63866 0.62234 0.57065

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

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 1.455 1.047 0.000
H6 1.455 -1.047 0.000
H7 -1.455 1.047 0.000
H8 -1.455 -1.047 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.73591.31501.31501.20061.20062.54802.5480
B21.73591.31501.31502.54802.54801.20061.2006
H31.31501.31501.97592.04692.04692.04692.0469
H41.31501.31501.97592.04692.04692.04692.0469
H51.20062.54802.04692.04692.09452.90993.5853
H61.20062.54802.04692.04692.09453.58532.9099
H72.54801.20062.04692.04692.90993.58532.0945
H82.54801.20062.04692.04693.58532.90992.0945

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 82.600 B1 H4 B2 82.600
H3 B1 H4 97.400 H3 B1 H5 108.826
H3 B1 H6 108.826 H3 B2 H4 97.400
H3 B2 H7 108.826 H3 B2 H8 108.826
H4 B1 H5 108.826 H4 B1 H6 108.826
H4 B2 H7 108.826 H4 B2 H8 108.826
H5 B1 H6 121.458 H7 B2 H8 121.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.241      
2 B -0.241      
3 H 0.143      
4 H 0.143      
5 H 0.049      
6 H 0.049      
7 H 0.049      
8 H 0.049      


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 -18.526 0.000 0.000
y 0.000 -17.340 0.000
z 0.000 0.000 -14.565
Traceless
 xyz
x -2.573 0.000 0.000
y 0.000 -0.795 0.000
z 0.000 0.000 3.368
Polar
3z2-r26.737
x2-y2-1.186
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.543 0.000 0.000
y 0.000 4.106 0.000
z 0.000 0.000 3.199


<r2> (average value of r2) Å2
<r2> 32.839
(<r2>)1/2 5.731