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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-192.655247
Energy at 298.15K-192.661639
HF Energy-192.017358
Nuclear repulsion energy118.567623
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 MP2/TZVP
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' 3191 3025 17.62      
2 A' 3101 2940 16.28      
3 A' 3076 2916 21.69      
4 A' 2963 2808 126.27      
5 A' 1768 1676 103.30      
6 A' 1521 1442 7.92      
7 A' 1480 1403 9.42      
8 A' 1454 1378 14.00      
9 A' 1439 1364 1.79      
10 A' 1391 1319 9.39      
11 A' 1137 1078 11.98      
12 A' 1020 967 1.05      
13 A' 877 831 20.54      
14 A' 681 645 5.53      
15 A' 264 250 7.69      
16 A" 3193 3027 18.92      
17 A" 3118 2955 7.94      
18 A" 1518 1439 6.75      
19 A" 1295 1227 0.74      
20 A" 1164 1103 0.60      
21 A" 915 867 1.23      
22 A" 685 649 1.95      
23 A" 248 235 0.19      
24 A" 132 125 2.70      

Unscaled Zero Point Vibrational Energy (zpe) 18814.2 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 17834.0 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 MP2/TZVP
ABC
0.55720 0.19731 0.15392

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.447 0.454 0.000
C2 0.000 0.916 0.000
C3 -0.996 -0.211 0.000
O4 -0.704 -1.391 0.000
H5 2.122 1.308 0.000
H6 1.657 -0.155 0.878
H7 1.657 -0.155 -0.878
H8 -0.225 1.539 0.872
H9 -0.225 1.539 -0.872
H10 -2.058 0.099 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.51862.53142.83321.08921.08881.08882.17542.17543.5227
C21.51861.50422.41202.15762.15942.15941.09501.09502.2144
C32.53141.50421.21553.46822.79492.79492.10192.10191.1068
O42.83322.41201.21553.90772.80542.80543.09443.09442.0140
H51.08922.15763.46823.90771.76871.76872.51402.51404.3513
H61.08882.15942.79492.80541.76871.75562.53223.07793.8260
H71.08882.15942.79492.80541.76871.75563.07792.53223.8260
H82.17541.09502.10193.09442.51402.53223.07791.74382.4888
H92.17541.09502.10193.09442.51403.07792.53221.74382.4888
H103.52272.21441.10682.01404.35133.82603.82602.48882.4888

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.739 C1 C2 H8 111.654
C1 C2 H9 111.654 C2 C1 H5 110.580
C2 C1 H6 110.747 C2 C1 H7 110.747
C2 C3 O4 124.625 C2 C3 H10 115.167
C3 C2 H8 106.878 C3 C2 H9 106.878
O4 C3 H10 120.208 H5 C1 H6 108.606
H5 C1 H7 108.606 H6 C1 H7 107.458
H8 C2 H9 105.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability