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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: CCSD(T)/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31G**
 hartrees
Energy at 0K-192.618754
Energy at 298.15K-192.625119
HF Energy-191.959518
Nuclear repulsion energy118.202617
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(T)/6-31G**
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' 3193 3028        
2 A' 3108 2948        
3 A' 3075 2917        
4 A' 2973 2820        
5 A' 1802 1709        
6 A' 1549 1469        
7 A' 1509 1432        
8 A' 1467 1391        
9 A' 1444 1370        
10 A' 1406 1333        
11 A' 1140 1081        
12 A' 1022 970        
13 A' 880 835        
14 A' 674 639        
15 A' 264 251        
16 A" 3198 3033        
17 A" 3113 2953        
18 A" 1546 1467        
19 A" 1310 1242        
20 A" 1171 1110        
21 A" 913 866        
22 A" 692 656        
23 A" 237 225        
24 A" 131 124        

Unscaled Zero Point Vibrational Energy (zpe) 18908.3 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 17934.5 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 CCSD(T)/6-31G**
ABC
0.54935 0.19740 0.15340

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.448 0.446 0.000
C2 0.000 0.925 0.000
C3 -1.002 -0.208 0.000
O4 -0.701 -1.393 0.000
H5 2.134 1.294 0.000
H6 1.649 -0.166 0.879
H7 1.649 -0.166 -0.879
H8 -0.217 1.553 0.873
H9 -0.217 1.553 -0.873
H10 -2.066 0.101 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52482.53562.82771.09091.09031.09032.18132.18133.5300
C21.52481.51292.42132.16562.16442.16441.09691.09692.2237
C32.53561.51291.22213.47732.79402.79402.11672.11671.1076
O42.82772.42131.22213.90552.79312.79313.11003.11002.0236
H51.09092.16563.47733.90551.77191.77192.52112.52114.3656
H61.09032.16442.79402.79311.77191.75892.53743.08373.8271
H71.09032.16442.79402.79311.77191.75893.08372.53743.8271
H82.18131.09692.11673.11002.52112.53743.08371.74582.5072
H92.18131.09692.11673.11002.52113.08372.53741.74582.5072
H103.53002.22371.10762.02364.36563.82713.82712.50722.5072

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.172 C1 C2 H8 111.567
C1 C2 H9 111.567 C2 C1 H5 110.676
C2 C1 H6 110.619 C2 C1 H7 110.619
C2 C3 O4 124.236 C2 C3 H10 115.248
C3 C2 H8 107.324 C3 C2 H9 107.324
O4 C3 H10 120.516 H5 C1 H6 108.652
H5 C1 H7 108.652 H6 C1 H7 107.532
H8 C2 H9 105.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability