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All results from a given calculation for Al2H6 (dialane)

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-487.539666
Energy at 298.15K-487.546582
HF Energy-487.334063
Nuclear repulsion energy77.928187
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/aug-cc-pVTZ
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 2003 1908 0.00      
2 Ag 1568 1494 0.00      
3 Ag 764 728 0.00      
4 Ag 384 366 0.00      
5 Au 426 406 0.00      
6 B1g 2009 1914 0.00      
7 B1g 468 446 0.00      
8 B1u 1314 1252 351.88      
9 B1u 653 622 295.48      
10 B2g 1443 1375 0.00      
11 B2g 503 479 0.00      
12 B2u 2016 1921 417.61      
13 B2u 872 830 223.63      
14 B2u 214 204 17.75      
15 B3g 772 735 0.00      
16 B3u 1995 1901 130.50      
17 B3u 1526 1454 1157.45      
18 B3u 720 686 681.16      

Unscaled Zero Point Vibrational Energy (zpe) 9824.1 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 9361.4 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 MP2/aug-cc-pVTZ
ABC
1.57550 0.15239 0.14528

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.306 0.000 0.000
Al2 -1.306 0.000 0.000
H3 0.000 0.000 1.145
H4 0.000 0.000 -1.145
H5 1.993 1.414 0.000
H6 1.993 -1.414 0.000
H7 -1.993 1.414 0.000
H8 -1.993 -1.414 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.61101.73671.73671.57181.57183.58833.5883
Al22.61101.73671.73673.58833.58831.57181.5718
H31.73671.73672.29062.69832.69832.69832.6983
H41.73671.73672.29062.69832.69832.69832.6983
H51.57183.58832.69832.69832.82733.98534.8863
H61.57183.58832.69832.69832.82734.88633.9853
H73.58831.57182.69832.69833.98534.88632.8273
H83.58831.57182.69832.69834.88633.98532.8273

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.259 Al1 Al2 H4 41.259
Al1 Al2 H7 115.923 Al1 Al2 H8 115.923
Al1 H3 Al2 97.481 Al1 H4 Al2 97.481
Al2 Al1 H3 41.259 Al2 Al1 H4 41.259
Al2 Al1 H5 115.923 Al2 Al1 H6 115.923
H3 Al1 H4 82.519 H3 Al1 H5 109.186
H3 Al1 H6 109.186 H3 Al2 H4 82.519
H3 Al2 H7 109.186 H3 Al2 H8 109.186
H4 Al1 H5 109.186 H4 Al1 H6 109.186
H4 Al2 H7 109.186 H4 Al2 H8 109.186
H5 Al1 H6 128.154 H7 Al2 H8 128.154
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability