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All results from a given calculation for Al2H6 (dialane)

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-487.552680
Energy at 298.15K-487.559556
HF Energy-487.306685
Nuclear repulsion energy77.581138
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 CCSD(T)=FULL/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 1959 1902        
2 Ag 1546 1502        
3 Ag 750 729        
4 Ag 378 367        
5 Au 427 414        
6 B1g 1967 1910        
7 B1g 472 458        
8 B1u 1281 1244        
9 B1u 638 619        
10 B2g 1407 1366        
11 B2g 490 476        
12 B2u 1972 1916        
13 B2u 861 836        
14 B2u 215 209        
15 B3g 770 748        
16 B3u 1951 1895        
17 B3u 1496 1452        
18 B3u 706 685        

Unscaled Zero Point Vibrational Energy (zpe) 9642.4 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 9364.7 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 CCSD(T)=FULL/aug-cc-pVDZ
ABC
1.55769 0.15106 0.14392

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.312 0.000 0.000
Al2 -1.312 0.000 0.000
H3 0.000 0.000 1.145
H4 0.000 0.000 -1.145
H5 1.997 1.424 0.000
H6 1.997 -1.424 0.000
H7 -1.997 1.424 0.000
H8 -1.997 -1.424 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.62381.74131.74131.58071.58073.60273.6027
Al22.62381.74131.74133.60273.60271.58071.5807
H31.74131.74132.29012.70722.70722.70722.7072
H41.74131.74132.29012.70722.70722.70722.7072
H51.58073.60272.70722.70722.84883.99444.9063
H61.58073.60272.70722.70722.84884.90633.9944
H73.60271.58072.70722.70723.99444.90632.8488
H83.60271.58072.70722.70724.90633.99442.8488

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.115 Al1 Al2 H4 41.115
Al1 Al2 H7 115.694 Al1 Al2 H8 115.694
Al1 H3 Al2 97.770 Al1 H4 Al2 97.770
Al2 Al1 H3 41.115 Al2 Al1 H4 41.115
Al2 Al1 H5 115.694 Al2 Al1 H6 115.694
H3 Al1 H4 82.230 H3 Al1 H5 109.065
H3 Al1 H6 109.065 H3 Al2 H4 82.230
H3 Al2 H7 109.065 H3 Al2 H8 109.065
H4 Al1 H5 109.065 H4 Al1 H6 109.065
H4 Al2 H7 109.065 H4 Al2 H8 109.065
H5 Al1 H6 128.613 H7 Al2 H8 128.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability