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All results from a given calculation for Al2H6 (dialane)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-488.448905
Energy at 298.15K-488.455689
HF Energy-488.448905
Nuclear repulsion energy77.594175
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 mPW1PW91/aug-cc-pVDZ
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 1941 1860 0.00      
2 Ag 1516 1453 0.00      
3 Ag 740 709 0.00      
4 Ag 372 357 0.00      
5 Au 418 400 0.00      
6 B1g 1951 1870 0.00      
7 B1g 467 448 0.00      
8 B1u 1280 1227 274.91      
9 B1u 627 601 234.56      
10 B2g 1383 1325 0.00      
11 B2g 471 451 0.00      
12 B2u 1958 1876 351.35      
13 B2u 815 781 176.67      
14 B2u 206 197 12.89      
15 B3g 736 706 0.00      
16 B3u 1935 1854 122.21      
17 B3u 1449 1389 1007.20      
18 B3u 697 668 592.16      

Unscaled Zero Point Vibrational Energy (zpe) 9480.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9085.3 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 mPW1PW91/aug-cc-pVDZ
ABC
1.54444 0.15178 0.14468

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.308 0.000 0.000
Al2 -1.308 0.000 0.000
H3 0.000 0.000 1.164
H4 0.000 0.000 -1.164
H5 1.995 1.425 0.000
H6 1.995 -1.425 0.000
H7 -1.995 1.425 0.000
H8 -1.995 -1.425 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.61551.75091.75091.58191.58193.59703.5970
Al22.61551.75091.75093.59703.59701.58191.5819
H31.75091.75092.32842.71402.71402.71402.7140
H41.75091.75092.32842.71402.71402.71402.7140
H51.58193.59702.71402.71402.84953.99014.9031
H61.58193.59702.71402.71402.84954.90313.9901
H73.59701.58192.71402.71403.99014.90312.8495
H83.59701.58192.71402.71404.90313.99012.8495

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.677 Al1 Al2 H4 41.677
Al1 Al2 H7 115.754 Al1 Al2 H8 115.754
Al1 H3 Al2 96.646 Al1 H4 Al2 96.646
Al2 Al1 H3 41.677 Al2 Al1 H4 41.677
Al2 Al1 H5 115.754 Al2 Al1 H6 115.754
H3 Al1 H4 83.354 H3 Al1 H5 108.937
H3 Al1 H6 108.937 H3 Al2 H4 83.354
H3 Al2 H7 108.937 H3 Al2 H8 108.937
H4 Al1 H5 108.937 H4 Al1 H6 108.937
H4 Al2 H7 108.937 H4 Al2 H8 108.937
H5 Al1 H6 128.493 H7 Al2 H8 128.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al -0.309      
2 Al -0.309      
3 H 0.110      
4 H 0.110      
5 H 0.099      
6 H 0.099      
7 H 0.099      
8 H 0.099      


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 -32.533 0.000 0.000
y 0.000 -35.800 0.000
z 0.000 0.000 -27.858
Traceless
 xyz
x -0.704 0.000 0.000
y 0.000 -5.604 0.000
z 0.000 0.000 6.308
Polar
3z2-r212.616
x2-y23.267
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.311 0.000 0.000
y 0.000 9.268 0.000
z 0.000 0.000 7.927


<r2> (average value of r2) Å2
<r2> 91.243
(<r2>)1/2 9.552