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All results from a given calculation for Al2H6 (dialane)

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-487.460820
Energy at 298.15K-487.467796
HF Energy-487.283220
Nuclear repulsion energy78.211779
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=FULL/6-31+G**
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 2042 1918 0.00      
2 Ag 1605 1508 0.00      
3 Ag 781 734 0.00      
4 Ag 388 365 0.00      
5 Au 439 412 0.00      
6 B1g 2054 1929 0.00      
7 B1g 485 456 0.00      
8 B1u 1356 1274 426.13      
9 B1u 660 619 296.92      
10 B2g 1472 1383 0.00      
11 B2g 507 476 0.00      
12 B2u 2060 1935 471.25      
13 B2u 910 855 289.93      
14 B2u 220 207 14.33      
15 B3g 806 757 0.00      
16 B3u 2035 1911 141.51      
17 B3u 1564 1469 1256.74      
18 B3u 734 690 698.40      

Unscaled Zero Point Vibrational Energy (zpe) 10058.9 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 9447.3 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 MP2=FULL/6-31+G**
ABC
1.58817 0.15352 0.14634

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.300 0.000 0.000
Al2 -1.300 0.000 0.000
H3 0.000 0.000 1.139
H4 0.000 0.000 -1.139
H5 1.989 1.409 0.000
H6 1.989 -1.409 0.000
H7 -1.989 1.409 0.000
H8 -1.989 -1.409 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.60071.72851.72851.56801.56803.57813.5781
Al22.60071.72851.72853.57813.57811.56801.5680
H31.72851.72852.27752.69012.69012.69012.6901
H41.72851.72852.27752.69012.69012.69012.6901
H51.56803.57812.69012.69012.81763.97754.8744
H61.56803.57812.69012.69012.81764.87443.9775
H73.57811.56802.69012.69013.97754.87442.8176
H83.57811.56802.69012.69014.87443.97752.8176

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.209 Al1 Al2 H4 41.209
Al1 Al2 H7 116.043 Al1 Al2 H8 116.043
Al1 H3 Al2 97.582 Al1 H4 Al2 97.582
Al2 Al1 H3 41.209 Al2 Al1 H4 41.209
Al2 Al1 H5 116.043 Al2 Al1 H6 116.043
H3 Al1 H4 82.418 H3 Al1 H5 109.287
H3 Al1 H6 109.287 H3 Al2 H4 82.418
H3 Al2 H7 109.287 H3 Al2 H8 109.287
H4 Al1 H5 109.287 H4 Al1 H6 109.287
H4 Al2 H7 109.287 H4 Al2 H8 109.287
H5 Al1 H6 127.915 H7 Al2 H8 127.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability