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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-193.071768
Energy at 298.15K-193.078081
HF Energy-193.071768
Nuclear repulsion energy118.376098
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 B3PW91/6-31G*
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' 3154 3018 19.59      
2 A' 3076 2943 17.29      
3 A' 3033 2901 24.92      
4 A' 2907 2781 147.55      
5 A' 1849 1769 140.17      
6 A' 1524 1458 8.66      
7 A' 1475 1411 13.86      
8 A' 1442 1380 14.93      
9 A' 1428 1366 2.25      
10 A' 1381 1321 9.56      
11 A' 1124 1076 15.40      
12 A' 1013 970 0.85      
13 A' 869 832 21.32      
14 A' 676 647 5.23      
15 A' 256 245 8.90      
16 A" 3158 3021 19.07      
17 A" 3063 2930 10.09      
18 A" 1520 1454 7.27      
19 A" 1289 1233 0.14      
20 A" 1152 1102 0.10      
21 A" 906 867 3.15      
22 A" 674 645 4.26      
23 A" 231 221 0.32      
24 A" 133 127 1.65      

Unscaled Zero Point Vibrational Energy (zpe) 18667.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 17859.1 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 B3PW91/6-31G*
ABC
0.55682 0.19628 0.15330

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.451 0.455 0.000
C2 0.000 0.915 0.000
C3 -0.997 -0.216 0.000
O4 -0.708 -1.391 0.000
H5 2.131 1.313 0.000
H6 1.665 -0.157 0.881
H7 1.665 -0.157 -0.881
H8 -0.227 1.548 0.872
H9 -0.227 1.548 -0.872
H10 -2.066 0.102 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52162.53832.84011.09461.09411.09412.18392.18393.5339
C21.52161.50732.41122.16782.16742.16741.10141.10142.2196
C32.53831.50731.21003.48172.80542.80542.11292.11291.1145
O42.84012.41121.21003.92002.81622.81623.10273.10272.0178
H51.09462.16783.48173.92001.77561.77562.52512.52514.3676
H61.09412.16742.80542.81621.77561.76222.54743.09213.8424
H71.09412.16742.80542.81621.77561.76223.09212.54743.8424
H82.18391.10142.11293.10272.52512.54743.09211.74332.4961
H92.18391.10142.11293.10272.52513.09212.54741.74332.4961
H103.53392.21961.11452.01784.36763.84243.84242.49612.4961

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.866 C1 C2 H8 111.737
C1 C2 H9 111.737 C2 C1 H5 110.860
C2 C1 H6 110.853 C2 C1 H7 110.853
C2 C3 O4 124.727 C2 C3 H10 114.861
C3 C2 H8 107.150 C3 C2 H9 107.150
O4 C3 H10 120.412 H5 C1 H6 108.438
H5 C1 H7 108.438 H6 C1 H7 107.278
H8 C2 H9 104.637
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.506      
2 C -0.406      
3 C 0.244      
4 O -0.383      
5 H 0.169      
6 H 0.188      
7 H 0.188      
8 H 0.190      
9 H 0.190      
10 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.050 2.579 0.000 2.580
CHELPG        
AIM        
ESP -0.032 2.556 0.000 2.556


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.758 -1.626 0.000
y -1.626 -27.841 0.000
z 0.000 0.000 -23.858
Traceless
 xyz
x 2.092 -1.626 0.000
y -1.626 -4.033 0.000
z 0.000 0.000 1.941
Polar
3z2-r23.883
x2-y24.084
xy-1.626
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.491 0.012 0.000
y 0.012 5.662 0.000
z 0.000 0.000 3.963


<r2> (average value of r2) Å2
<r2> 84.429
(<r2>)1/2 9.189