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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: CCSD(T)/cc-pVTZ

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)/cc-pVTZ
 hartrees
Energy at 0K-192.827003
Energy at 298.15K-192.833366
HF Energy-192.022938
Nuclear repulsion energy118.494471
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)/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3131 3052        
2 A' 3054 2977        
3 A' 3027 2951        
4 A' 2918 2844        
5 A' 1788 1743        
6 A' 1507 1469        
7 A' 1462 1425        
8 A' 1428 1392        
9 A' 1412 1377        
10 A' 1372 1338        
11 A' 1120 1092        
12 A' 1006 980        
13 A' 867 845        
14 A' 669 652        
15 A' 256 250        
16 A" 3132 3053        
17 A" 3058 2981        
18 A" 1501 1463        
19 A" 1287 1254        
20 A" 1148 1119        
21 A" 902 879        
22 A" 676 659        
23 A" 241 235        
24 A" 140 136        

Unscaled Zero Point Vibrational Energy (zpe) 18551.0 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 18083.5 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)/cc-pVTZ
ABC
0.55448 0.19754 0.15386

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.448 0.448 0.000
C2 0.000 0.920 0.000
C3 -0.999 -0.212 0.000
O4 -0.703 -1.387 0.000
H5 2.131 1.299 0.000
H6 1.654 -0.163 0.879
H7 1.654 -0.163 -0.879
H8 -0.223 1.546 0.872
H9 -0.223 1.546 -0.872
H10 -2.063 0.097 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52302.53482.82821.09071.09041.09042.18132.18133.5285
C21.52301.50942.41182.16422.16382.16381.09641.09642.2206
C32.53481.50941.21213.47532.79542.79542.11012.11011.1076
O42.82822.41181.21213.90492.79792.79793.09773.09772.0129
H51.09072.16423.47533.90491.77161.77162.52202.52204.3622
H61.09042.16382.79542.79791.77161.75752.53903.08403.8283
H71.09042.16382.79542.79791.77161.75753.08402.53903.8283
H82.18131.09642.11013.09772.52202.53903.08401.74352.4988
H92.18131.09642.11013.09772.52203.08402.53901.74352.4988
H103.52852.22061.10762.01294.36223.82833.82832.49882.4988

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.417 C1 C2 H8 111.726
C1 C2 H9 111.726 C2 C1 H5 110.703
C2 C1 H6 110.688 C2 C1 H7 110.688
C2 C3 O4 124.437 C2 C3 H10 115.242
C3 C2 H8 107.081 C3 C2 H9 107.081
O4 C3 H10 120.321 H5 C1 H6 108.633
H5 C1 H7 108.633 H6 C1 H7 107.398
H8 C2 H9 105.329
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability