return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for Al2H6 (dialane)

using model chemistry: B3LYP/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-488.532004
Energy at 298.15K-488.538861
HF Energy-488.532004
Nuclear repulsion energy77.969487
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 B3LYP/aug-cc-pVQZ
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 1974 1913 0.00      
2 Ag 1535 1487 0.00      
3 Ag 757 734 0.00      
4 Ag 374 362 0.00      
5 Au 420 407 0.00      
6 B1g 1981 1919 0.00      
7 B1g 474 459 0.00      
8 B1u 1284 1244 308.44      
9 B1u 632 613 252.96      
10 B2g 1398 1355 0.00      
11 B2g 484 469 0.00      
12 B2u 1988 1926 392.34      
13 B2u 851 825 195.92      
14 B2u 222 215 15.05      
15 B3g 752 728 0.00      
16 B3u 1968 1907 127.76      
17 B3u 1479 1433 1060.61      
18 B3u 716 694 619.44      

Unscaled Zero Point Vibrational Energy (zpe) 9643.8 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 9343.9 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 B3LYP/aug-cc-pVQZ
ABC
1.58411 0.15237 0.14529

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.305 0.000 0.000
Al2 -1.305 0.000 0.000
H3 0.000 0.000 1.142
H4 0.000 0.000 -1.142
H5 1.997 1.410 0.000
H6 1.997 -1.410 0.000
H7 -1.997 1.410 0.000
H8 -1.997 -1.410 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.61051.73421.73421.57041.57043.59053.5905
Al22.61051.73421.73423.59053.59051.57041.5704
H31.73421.73422.28372.69792.69792.69792.6979
H41.73421.73422.28372.69792.69792.69792.6979
H51.57043.59052.69792.69792.81993.99364.8888
H61.57043.59052.69792.69792.81994.88883.9936
H73.59051.57042.69792.69793.99364.88882.8199
H83.59051.57042.69792.69794.88883.99362.8199

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.179 Al1 Al2 H4 41.179
Al1 Al2 H7 116.127 Al1 Al2 H8 116.127
Al1 H3 Al2 97.642 Al1 H4 Al2 97.642
Al2 Al1 H3 41.179 Al2 Al1 H4 41.179
Al2 Al1 H5 116.127 Al2 Al1 H6 116.127
H3 Al1 H4 82.358 H3 Al1 H5 109.356
H3 Al1 H6 109.356 H3 Al2 H4 82.358
H3 Al2 H7 109.356 H3 Al2 H8 109.356
H4 Al1 H5 109.356 H4 Al1 H6 109.356
H4 Al2 H7 109.356 H4 Al2 H8 109.356
H5 Al1 H6 127.747 H7 Al2 H8 127.747
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Al 0.103      
2 Al 0.103      
3 H -0.186      
4 H -0.186      
5 H 0.042      
6 H 0.042      
7 H 0.042      
8 H 0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.982 0.000 0.000
y 0.000 -36.067 0.000
z 0.000 0.000 -27.667
Traceless
 xyz
x -1.115 0.000 0.000
y 0.000 -5.742 0.000
z 0.000 0.000 6.858
Polar
3z2-r213.715
x2-y23.085
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.104 0.000 0.000
y 0.000 9.157 0.000
z 0.000 0.000 7.769


<r2> (average value of r2) Å2
<r2> 90.940
(<r2>)1/2 9.536