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All results from a given calculation for Al2H6 (dialane)

using model chemistry: CCSD/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/cc-pVDZ
 hartrees
Energy at 0K-487.518660
Energy at 298.15K-487.525554
HF Energy-487.305325
Nuclear repulsion energy77.425618
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/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 1955 1852 0.00      
2 Ag 1550 1469 0.00      
3 Ag 759 719 0.00      
4 Ag 383 363 0.00      
5 Au 426 404 0.00      
6 B1g 1966 1862 0.00      
7 B1g 475 450 0.00      
8 B1u 1281 1214 366.60      
9 B1u 646 612 269.86      
10 B2g 1405 1331 0.00      
11 B2g 487 462 0.00      
12 B2u 1971 1868 343.86      
13 B2u 868 822 232.98      
14 B2u 221 209 16.04      
15 B3g 771 730 0.00      
16 B3u 1949 1846 112.11      
17 B3u 1492 1414 1159.23      
18 B3u 715 678 634.44      

Unscaled Zero Point Vibrational Energy (zpe) 9660.8 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 9151.7 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/cc-pVDZ
ABC
1.56122 0.15015 0.14317

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.316 0.000 0.000
Al2 -1.316 0.000 0.000
H3 0.000 0.000 1.150
H4 0.000 0.000 -1.150
H5 2.005 1.420 0.000
H6 2.005 -1.420 0.000
H7 -2.005 1.420 0.000
H8 -2.005 -1.420 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.63121.74741.74741.57891.57893.61183.6118
Al22.63121.74741.74743.61183.61181.57891.5789
H31.74741.74742.30012.71312.71312.71312.7131
H41.74741.74742.30012.71312.71312.71312.7131
H51.57893.61182.71312.71312.84064.01054.9146
H61.57893.61182.71312.71312.84064.91464.0105
H73.61181.57892.71312.71314.01054.91462.8406
H83.61181.57892.71312.71314.91464.01052.8406

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.158 Al1 Al2 H4 41.158
Al1 Al2 H7 115.900 Al1 Al2 H8 115.900
Al1 H3 Al2 97.684 Al1 H4 Al2 97.684
Al2 Al1 H3 41.158 Al2 Al1 H4 41.158
Al2 Al1 H5 115.900 Al2 Al1 H6 115.900
H3 Al1 H4 82.316 H3 Al1 H5 109.200
H3 Al1 H6 109.200 H3 Al2 H4 82.316
H3 Al2 H7 109.200 H3 Al2 H8 109.200
H4 Al1 H5 109.200 H4 Al1 H6 109.200
H4 Al2 H7 109.200 H4 Al2 H8 109.200
H5 Al1 H6 128.200 H7 Al2 H8 128.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability