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: B2PLYP=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 B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-488.161480
Energy at 298.15K-488.168376
HF Energy-488.102324
Nuclear repulsion energy77.925265
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 B2PLYP=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 2002 1904 0.00      
2 Ag 1568 1491 0.00      
3 Ag 767 729 0.00      
4 Ag 378 360 0.00      
5 Au 428 407 0.00      
6 B1g 2012 1914 0.00      
7 B1g 480 456 0.00      
8 B1u 1317 1253 394.30      
9 B1u 643 612 257.80      
10 B2g 1423 1353 0.00      
11 B2g 491 467 0.00      
12 B2u 2019 1920 451.93      
13 B2u 879 836 253.98      
14 B2u 221 210 12.79      
15 B3g 776 738 0.00      
16 B3u 1995 1897 141.79      
17 B3u 1512 1438 1197.41      
18 B3u 721 686 653.13      

Unscaled Zero Point Vibrational Energy (zpe) 9815.6 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 9334.6 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 B2PLYP=FULL/6-31+G**
ABC
1.57876 0.15228 0.14519

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 1.306 0.000 0.000
Al2 -1.306 0.000 0.000
H3 0.000 0.000 1.144
H4 0.000 0.000 -1.144
H5 1.995 1.412 0.000
H6 1.995 -1.412 0.000
H7 -1.995 1.412 0.000
H8 -1.995 -1.412 0.000

Atom - Atom Distances (Å)
  Al1 Al2 H3 H4 H5 H6 H7 H8
Al12.61171.73591.73591.57151.57153.59033.5903
Al22.61171.73591.73593.59033.59031.57151.5715
H31.73591.73592.28752.69862.69862.69862.6986
H41.73591.73592.28752.69862.69862.69862.6986
H51.57153.59032.69862.69862.82463.98994.8886
H61.57153.59032.69862.69862.82464.88863.9899
H73.59031.57152.69862.69863.98994.88862.8246
H83.59031.57152.69862.69864.88863.98992.8246

picture of dialane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 Al2 H3 41.214 Al1 Al2 H4 41.214
Al1 Al2 H7 116.009 Al1 Al2 H8 116.009
Al1 H3 Al2 97.571 Al1 H4 Al2 97.571
Al2 Al1 H3 41.214 Al2 Al1 H4 41.214
Al2 Al1 H5 116.009 Al2 Al1 H6 116.009
H3 Al1 H4 82.429 H3 Al1 H5 109.261
H3 Al1 H6 109.261 H3 Al2 H4 82.429
H3 Al2 H7 109.261 H3 Al2 H8 109.261
H4 Al1 H5 109.261 H4 Al1 H6 109.261
H4 Al2 H7 109.261 H4 Al2 H8 109.261
H5 Al1 H6 127.982 H7 Al2 H8 127.982
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability