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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: QCISD/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/cc-pVDZ
 hartrees
Energy at 0K-192.611368
Energy at 298.15K-192.617757
HF Energy-191.966031
Nuclear repulsion energy117.797762
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/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' 3158 3030 21.40      
2 A' 3074 2949 15.39      
3 A' 3049 2926 29.78      
4 A' 2933 2814 138.94      
5 A' 1825 1750 121.67      
6 A' 1498 1437 6.64      
7 A' 1462 1402 7.17      
8 A' 1429 1371 9.76      
9 A' 1415 1358 5.95      
10 A' 1382 1326 4.52      
11 A' 1127 1082 12.01      
12 A' 1012 971 1.12      
13 A' 878 843 18.13      
14 A' 671 644 7.63      
15 A' 263 252 8.13      
16 A" 3162 3034 21.98      
17 A" 3088 2962 12.70      
18 A" 1493 1433 5.37      
19 A" 1284 1232 0.34      
20 A" 1151 1105 0.22      
21 A" 904 867 1.70      
22 A" 683 655 1.85      
23 A" 247 237 0.38      
24 A" 143 137 2.13      

Unscaled Zero Point Vibrational Energy (zpe) 18665.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 17907.3 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/cc-pVDZ
ABC
0.54694 0.19588 0.15247

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.454 0.448 0.000
C2 0.000 0.925 0.000
C3 -1.004 -0.215 0.000
O4 -0.705 -1.392 0.000
H5 2.148 1.306 0.000
H6 1.661 -0.172 0.889
H7 1.661 -0.172 -0.889
H8 -0.223 1.560 0.882
H9 -0.223 1.560 -0.882
H10 -2.080 0.105 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52992.54602.83661.10381.10371.10372.19642.19643.5507
C21.52991.51892.42172.18152.18012.18011.10911.10912.2361
C32.54601.51891.21503.50012.81052.81052.12972.12971.1223
O42.83662.42171.21503.92692.80712.80713.11793.11792.0329
H51.10382.18153.50013.92691.79231.79232.54212.54214.3956
H61.10372.18012.81052.80711.79231.77882.55883.11203.8558
H71.10372.18012.81052.80711.79231.77883.11202.55883.8558
H82.19641.10912.12973.11792.54212.55883.11201.76352.5185
H92.19641.10912.12973.11792.54213.11202.55881.76352.5185
H103.55072.23611.12232.03294.39563.85583.85582.51852.5185

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.247 C1 C2 H8 111.679
C1 C2 H9 111.679 C2 C1 H5 110.806
C2 C1 H6 110.708 C2 C1 H7 110.708
C2 C3 O4 124.328 C2 C3 H10 114.858
C3 C2 H8 107.236 C3 C2 H9 107.236
O4 C3 H10 120.814 H5 C1 H6 108.564
H5 C1 H7 108.564 H6 C1 H7 107.385
H8 C2 H9 105.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability