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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-192.568557
Energy at 298.15K-192.574917
HF Energy-191.949209
Nuclear repulsion energy118.009214
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' 3146 3026        
2 A' 3069 2952        
3 A' 3032 2917        
4 A' 2934 2823        
5 A' 1799 1731        
6 A' 1542 1483        
7 A' 1508 1451        
8 A' 1464 1408        
9 A' 1438 1384        
10 A' 1403 1350        
11 A' 1137 1094        
12 A' 1024 985        
13 A' 881 848        
14 A' 676 651        
15 A' 268 258        
16 A" 3152 3033        
17 A" 3064 2948        
18 A" 1539 1481        
19 A" 1304 1255        
20 A" 1170 1125        
21 A" 912 877        
22 A" 694 667        
23 A" 235 226        
24 A" 134 129        

Unscaled Zero Point Vibrational Energy (zpe) 18762.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 18051.1 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
0.54667 0.19731 0.15322

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 1.449 0.443 0.000
C2 0.000 0.926 0.000
C3 -1.003 -0.207 0.000
O4 -0.702 -1.392 0.000
H5 2.141 1.294 0.000
H6 1.652 -0.173 0.884
H7 1.652 -0.173 -0.884
H8 -0.216 1.559 0.877
H9 -0.216 1.559 -0.877
H10 -2.074 0.100 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52702.53622.82651.09721.09631.09632.18792.18793.5389
C21.52701.51292.42152.17212.17172.17171.10311.10312.2321
C32.53621.51291.22273.48362.79812.79812.12302.12301.1136
O42.82652.42151.22273.91062.79372.79373.11663.11662.0266
H51.09722.17213.48363.91061.78141.78142.52852.52854.3802
H61.09632.17172.79812.79371.78141.76832.54723.09673.8383
H71.09632.17172.79812.79371.78141.76833.09672.54723.8383
H82.18791.10312.12303.11662.52852.54723.09671.75392.5198
H92.18791.10312.12303.11662.52853.09672.54721.75392.5198
H103.53892.23211.11362.02664.38023.83833.83832.51982.5198

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.086 C1 C2 H8 111.560
C1 C2 H9 111.560 C2 C1 H5 110.659
C2 C1 H6 110.684 C2 C1 H7 110.684
C2 C3 O4 124.202 C2 C3 H10 115.550
C3 C2 H8 107.457 C3 C2 H9 107.457
O4 C3 H10 120.248 H5 C1 H6 108.607
H5 C1 H7 108.607 H6 C1 H7 107.505
H8 C2 H9 105.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability