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All results from a given calculation for Al2H6 (dialane)

using model chemistry: MP4=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 MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-487.549413
Energy at 298.15K-487.556303
HF Energy-487.306688
Nuclear repulsion energy77.631683
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 MP4=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 1970 1922        
2 Ag 1553 1514        
3 Ag 754 736        
4 Ag 379 370        
5 Au 428 418        
6 B1g 1979 1930        
7 B1g 473 461        
8 B1u 1286 1254        
9 B1u 641 625        
10 B2g 1414 1379        
11 B2g 492 480        
12 B2u 1984 1935        
13 B2u 865 843        
14 B2u 215 210        
15 B3g 773 754        
16 B3u 1963 1914        
17 B3u 1502 1464        
18 B3u 709 691        

Unscaled Zero Point Vibrational Energy (zpe) 9689.8 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 9449.5 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 MP4=FULL/aug-cc-pVDZ
ABC
1.56052 0.15122 0.14407

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.311 0.000 0.000
Al2 -1.311 0.000 0.000
H3 0.000 0.000 1.144
H4 0.000 0.000 -1.144
H5 1.995 1.423 0.000
H6 1.995 -1.423 0.000
H7 -1.995 1.423 0.000
H8 -1.995 -1.423 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.62261.74011.74011.57911.57913.60003.6000
Al22.62261.74011.74013.60003.60001.57911.5791
H31.74011.74012.28782.70482.70482.70482.7048
H41.74011.74012.28782.70482.70482.70482.7048
H51.57913.60002.70482.70482.84633.99104.9020
H61.57913.60002.70482.70482.84634.90203.9910
H73.60001.57912.70482.70483.99104.90202.8463
H83.60001.57912.70482.70484.90203.99102.8463

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.100 Al1 Al2 H4 41.100
Al1 Al2 H7 115.676 Al1 Al2 H8 115.676
Al1 H3 Al2 97.800 Al1 H4 Al2 97.800
Al2 Al1 H3 41.100 Al2 Al1 H4 41.100
Al2 Al1 H5 115.676 Al2 Al1 H6 115.676
H3 Al1 H4 82.200 H3 Al1 H5 109.057
H3 Al1 H6 109.057 H3 Al2 H4 82.200
H3 Al2 H7 109.057 H3 Al2 H8 109.057
H4 Al1 H5 109.057 H4 Al1 H6 109.057
H4 Al2 H7 109.057 H4 Al2 H8 109.057
H5 Al1 H6 128.648 H7 Al2 H8 128.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability