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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: CCSD(T)/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-192.732253
Energy at 298.15K-192.738601
HF Energy-191.972715
Nuclear repulsion energy118.417793
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(2df,p)
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' 3169 3169        
2 A' 3088 3088        
3 A' 3058 3058        
4 A' 2939 2939        
5 A' 1805 1805        
6 A' 1520 1520        
7 A' 1479 1479        
8 A' 1440 1440        
9 A' 1424 1424        
10 A' 1378 1378        
11 A' 1123 1123        
12 A' 1008 1008        
13 A' 870 870        
14 A' 668 668        
15 A' 258 258        
16 A" 3173 3173        
17 A" 3093 3093        
18 A" 1516 1516        
19 A" 1290 1290        
20 A" 1154 1154        
21 A" 903 903        
22 A" 678 678        
23 A" 235 235        
24 A" 139 139        

Unscaled Zero Point Vibrational Energy (zpe) 18702.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18702.9 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(2df,p)
ABC
0.54967 0.19851 0.15411

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.448 0.438 0.000
C2 0.000 0.925 0.000
C3 -1.001 -0.209 0.000
O4 -0.701 -1.383 0.000
H5 2.141 1.283 0.000
H6 1.647 -0.177 0.880
H7 1.647 -0.177 -0.880
H8 -0.218 1.554 0.873
H9 -0.218 1.554 -0.873
H10 -2.067 0.102 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52722.53302.81681.09261.09231.09232.18712.18713.5306
C21.52721.51302.41232.17032.16842.16841.09841.09842.2247
C32.53301.51301.21163.47822.79092.79092.11812.11811.1104
O42.81682.41231.21163.89662.78282.78283.10233.10232.0180
H51.09262.17033.47823.89661.77471.77472.52992.52994.3700
H61.09232.16842.79092.78281.77471.76062.54483.09063.8272
H71.09232.16842.79092.78281.77471.76063.09062.54483.8272
H82.18711.09842.11813.10232.52992.54483.09061.74702.5077
H92.18711.09842.11813.10232.52993.09062.54481.74702.5077
H103.53062.22471.11042.01804.37003.82723.82722.50772.5077

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.850 C1 C2 H8 111.772
C1 C2 H9 111.772 C2 C1 H5 110.781
C2 C1 H6 110.646 C2 C1 H7 110.646
C2 C3 O4 124.226 C2 C3 H10 115.129
C3 C2 H8 107.336 C3 C2 H9 107.336
O4 C3 H10 120.644 H5 C1 H6 108.635
H5 C1 H7 108.635 H6 C1 H7 107.398
H8 C2 H9 105.350
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability