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All results from a given calculation for Al2H6 (dialane)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-487.391735
Energy at 298.15K-487.398635
HF Energy-487.274885
Nuclear repulsion energy77.628204
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 MP2/6-31G*
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 2011 1896 0.00      
2 Ag 1572 1482 0.00      
3 Ag 769 725 0.00      
4 Ag 382 361 0.00      
5 Au 433 408 0.00      
6 B1g 2024 1908 0.00      
7 B1g 479 452 0.00      
8 B1u 1336 1260 409.03      
9 B1u 650 613 264.32      
10 B2g 1448 1365 0.00      
11 B2g 498 469 0.00      
12 B2u 2030 1914 448.72      
13 B2u 888 838 282.68      
14 B2u 218 205 12.41      
15 B3g 792 747 0.00      
16 B3u 2003 1889 135.58      
17 B3u 1540 1452 1269.37      
18 B3u 724 683 651.39      

Unscaled Zero Point Vibrational Energy (zpe) 9897.3 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 9333.2 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 MP2/6-31G*
ABC
1.55691 0.15151 0.14440

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.313 0.000 0.000
Al2 -1.313 0.000 0.000
H3 0.000 0.000 1.151
H4 0.000 0.000 -1.151
H5 2.008 1.421 0.000
H6 2.008 -1.421 0.000
H7 -2.008 1.421 0.000
H8 -2.008 -1.421 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.62511.74591.74591.58191.58193.61183.6118
Al22.62511.74591.74593.61183.61181.58191.5819
H31.74591.74592.30242.71602.71602.71602.7160
H41.74591.74592.30242.71602.71602.71602.7160
H51.58193.61182.71602.71602.84174.01614.9198
H61.58193.61182.71602.71602.84174.91984.0161
H73.61181.58192.71602.71604.01614.91982.8417
H83.61181.58192.71602.71604.91984.01612.8417

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.253 Al1 Al2 H4 41.253
Al1 Al2 H7 116.082 Al1 Al2 H8 116.082
Al1 H3 Al2 97.493 Al1 H4 Al2 97.493
Al2 Al1 H3 41.253 Al2 Al1 H4 41.253
Al2 Al1 H5 116.082 Al2 Al1 H6 116.082
H3 Al1 H4 82.507 H3 Al1 H5 109.301
H3 Al1 H6 109.301 H3 Al2 H4 82.507
H3 Al2 H7 109.301 H3 Al2 H8 109.301
H4 Al1 H5 109.301 H4 Al1 H6 109.301
H4 Al2 H7 109.301 H4 Al2 H8 109.301
H5 Al1 H6 127.836 H7 Al2 H8 127.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability