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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: QCISD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-192.670089
Energy at 298.15K-192.676388
HF Energy-191.975603
Nuclear repulsion energy117.331791
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 QCISD(T)/aug-cc-pVDZ
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' 3115 3046        
2 A' 3034 2966        
3 A' 3006 2939        
4 A' 2913 2848        
5 A' 1744 1705        
6 A' 1478 1445        
7 A' 1437 1405        
8 A' 1402 1371        
9 A' 1386 1355        
10 A' 1353 1323        
11 A' 1108 1083        
12 A' 993 971        
13 A' 860 841        
14 A' 654 640        
15 A' 251 246        
16 A" 3117 3048        
17 A" 3042 2974        
18 A" 1474 1441        
19 A" 1264 1236        
20 A" 1126 1101        
21 A" 882 862        
22 A" 663 648        
23 A" 230 225        
24 A" 134 131        

Unscaled Zero Point Vibrational Energy (zpe) 18332.4 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 17925.4 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 QCISD(T)/aug-cc-pVDZ
ABC
0.54481 0.19359 0.15095

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.462 0.456 0.000
C2 0.000 0.926 0.000
C3 -1.008 -0.214 0.000
O4 -0.710 -1.402 0.000
H5 2.146 1.322 0.000
H6 1.673 -0.161 0.891
H7 1.673 -0.161 -0.891
H8 -0.228 1.558 0.883
H9 -0.228 1.558 -0.883
H10 -2.084 0.096 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53532.55832.85771.10431.10391.10392.20232.20233.5641
C21.53531.52082.43352.18252.18492.18491.10981.10982.2431
C32.55831.52081.22533.50782.82542.82542.12712.12711.1206
O42.85772.43351.22533.94692.83062.83063.12613.12612.0337
H51.10432.18253.50783.94691.79371.79372.54422.54424.4044
H61.10392.18492.82542.83061.79371.78172.56323.11713.8702
H71.10392.18492.82542.83061.79371.78173.11712.56323.8702
H82.20231.10982.12713.12612.54422.56323.11711.76612.5218
H92.20231.10982.12713.12612.54423.11712.56321.76612.5218
H103.56412.24311.12062.03374.40443.87023.87022.52182.5218

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.672 C1 C2 H8 111.727
C1 C2 H9 111.727 C2 C1 H5 110.483
C2 C1 H6 110.694 C2 C1 H7 110.694
C2 C3 O4 124.438 C2 C3 H10 115.422
C3 C2 H8 106.883 C3 C2 H9 106.883
O4 C3 H10 120.140 H5 C1 H6 108.641
H5 C1 H7 108.641 H6 C1 H7 107.601
H8 C2 H9 105.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability