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All results from a given calculation for Al2H6 (dialane)

using model chemistry: CISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at CISD/3-21G
 hartrees
Energy at 0K-484.723646
Energy at 298.15K-484.730456
HF Energy-484.607285
Nuclear repulsion energy75.877150
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 CISD/3-21G
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 1915 1802 0.00      
2 Ag 1504 1416 0.00      
3 Ag 714 672 0.00      
4 Ag 365 344 0.00      
5 Au 430 404 0.00      
6 B1g 1932 1819 0.00      
7 B1g 463 436 0.00      
8 B1u 1216 1145 436.97      
9 B1u 626 589 262.60      
10 B2g 1361 1281 0.00      
11 B2g 458 431 0.00      
12 B2u 1938 1824 354.04      
13 B2u 908 855 369.22      
14 B2u 233 220 9.00      
15 B3g 794 748 0.00      
16 B3u 1906 1794 104.26      
17 B3u 1475 1389 1373.66      
18 B3u 670 630 693.92      

Unscaled Zero Point Vibrational Energy (zpe) 9453.8 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 8898.9 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 CISD/3-21G
ABC
1.51277 0.14335 0.13661

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.349 0.000 0.000
Al2 -1.349 0.000 0.000
H3 0.000 0.000 1.151
H4 0.000 0.000 -1.151
H5 2.040 1.450 0.000
H6 2.040 -1.450 0.000
H7 -2.040 1.450 0.000
H8 -2.040 -1.450 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.69731.77321.77321.60601.60603.68553.6855
Al22.69731.77321.77323.68553.68551.60601.6060
H31.77321.77322.30252.75462.75462.75462.7546
H41.77321.77322.30252.75462.75462.75462.7546
H51.60603.68552.75462.75462.89944.07955.0049
H61.60603.68552.75462.75462.89945.00494.0795
H73.68551.60602.75462.75464.07955.00492.8994
H83.68551.60602.75462.75465.00494.07952.8994

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 40.485 Al1 Al2 H4 40.485
Al1 Al2 H7 115.489 Al1 Al2 H8 115.489
Al1 H3 Al2 99.029 Al1 H4 Al2 99.029
Al2 Al1 H3 40.485 Al2 Al1 H4 40.485
Al2 Al1 H5 115.489 Al2 Al1 H6 115.489
H3 Al1 H4 80.971 H3 Al1 H5 109.105
H3 Al1 H6 109.105 H3 Al2 H4 80.971
H3 Al2 H7 109.105 H3 Al2 H8 109.105
H4 Al1 H5 109.105 H4 Al1 H6 109.105
H4 Al2 H7 109.105 H4 Al2 H8 109.105
H5 Al1 H6 129.022 H7 Al2 H8 129.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability