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All results from a given calculation for Al2H6 (dialane)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-488.311507
Energy at 298.15K-488.318181
HF Energy-488.311507
Nuclear repulsion energy76.053119
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 B3PW91/6-31G
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 1912 1831 0.00      
2 Ag 1465 1403 0.00      
3 Ag 695 666 0.00      
4 Ag 362 347 0.00      
5 Au 412 395 0.00      
6 B1g 1936 1854 0.00      
7 B1g 454 435 0.00      
8 B1u 1214 1162 363.29      
9 B1u 611 585 204.40      
10 B2g 1303 1248 0.00      
11 B2g 450 431 0.00      
12 B2u 1944 1861 410.95      
13 B2u 818 783 269.91      
14 B2u 227 217 6.24      
15 B3g 737 706 0.00      
16 B3u 1904 1823 147.07      
17 B3u 1392 1333 1232.38      
18 B3u 648 621 622.07      

Unscaled Zero Point Vibrational Energy (zpe) 9241.6 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 8850.7 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 B3PW91/6-31G
ABC
1.50555 0.14426 0.13756

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.346 0.000 0.000
Al2 -1.346 0.000 0.000
H3 0.000 0.000 1.169
H4 0.000 0.000 -1.169
H5 2.015 1.447 0.000
H6 2.015 -1.447 0.000
H7 -2.015 1.447 0.000
H8 -2.015 -1.447 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.69151.78231.78231.59461.59463.65943.6594
Al22.69151.78231.78233.65943.65941.59461.5946
H31.78231.78232.33732.74252.74252.74252.7425
H41.78231.78232.33732.74252.74252.74252.7425
H51.59463.65942.74252.74252.89464.03054.9622
H61.59463.65942.74252.74252.89464.96224.0305
H73.65941.59462.74252.74254.03054.96222.8946
H83.65941.59462.74252.74254.96224.03052.8946

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 40.971 Al1 Al2 H4 40.971
Al1 Al2 H7 114.824 Al1 Al2 H8 114.824
Al1 H3 Al2 98.059 Al1 H4 Al2 98.059
Al2 Al1 H3 40.971 Al2 Al1 H4 40.971
Al2 Al1 H5 114.824 Al2 Al1 H6 114.824
H3 Al1 H4 81.941 H3 Al1 H5 108.481
H3 Al1 H6 108.481 H3 Al2 H4 81.941
H3 Al2 H7 108.481 H3 Al2 H8 108.481
H4 Al1 H5 108.481 H4 Al1 H6 108.481
H4 Al2 H7 108.481 H4 Al2 H8 108.481
H5 Al1 H6 130.352 H7 Al2 H8 130.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.570      
2 Al 0.570      
3 H -0.278      
4 H -0.278      
5 H -0.146      
6 H -0.146      
7 H -0.146      
8 H -0.146      


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 -31.427 0.000 0.000
y 0.000 -35.981 0.000
z 0.000 0.000 -29.088
Traceless
 xyz
x 1.108 0.000 0.000
y 0.000 -5.723 0.000
z 0.000 0.000 4.615
Polar
3z2-r29.231
x2-y24.554
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.315 0.000 0.000
y 0.000 7.621 0.000
z 0.000 0.000 5.430


<r2> (average value of r2) Å2
<r2> 94.532
(<r2>)1/2 9.723