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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-153.705333
Energy at 298.15K-153.709259
HF Energy-153.705333
Nuclear repulsion energy69.907022
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 HSEh1PBE/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3168 3043 9.19 52.21 0.72 0.84
2 A' 3044 2924 1.66 149.06 0.01 0.02
3 A' 2887 2773 138.80 160.61 0.33 0.50
4 A' 1856 1782 185.88 9.14 0.70 0.82
5 A' 1455 1397 22.80 16.72 0.63 0.77
6 A' 1427 1371 13.04 5.33 0.58 0.74
7 A' 1369 1315 31.09 4.52 0.73 0.84
8 A' 1133 1088 25.76 2.03 0.30 0.46
9 A' 897 861 7.07 5.07 0.42 0.59
10 A' 510 490 13.87 1.45 0.49 0.66
11 A" 3112 2988 6.90 68.66 0.75 0.86
12 A" 1465 1407 13.02 9.20 0.75 0.86
13 A" 1137 1092 0.72 1.34 0.75 0.86
14 A" 774 743 1.14 5.41 0.75 0.86
15 A" 161 155 0.37 1.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12197.0 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 11714.0 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 HSEh1PBE/6-311G**
ABC
1.91272 0.34093 0.30568

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.460 0.000
C2 -0.927 -0.717 0.000
O3 1.198 0.385 0.000
H4 -0.502 1.454 0.000
H5 -0.360 -1.647 0.000
H6 -1.580 -0.672 0.879
H7 -1.580 -0.672 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.49821.20081.11362.13792.13312.1331
C21.49822.39442.21181.08991.09541.0954
O31.20082.39442.00862.56143.10003.1000
H41.11362.21182.00863.10462.54042.5404
H52.13791.08992.56143.10461.79201.7920
H62.13311.09543.10002.54041.79201.7571
H72.13311.09543.10002.54041.79201.7571

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