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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-192.905444
Energy at 298.15K-192.911647
HF Energy-192.905444
Nuclear repulsion energy117.678557
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 PBEPBE/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' 3086 3044 16.48      
2 A' 3004 2963 16.15      
3 A' 2954 2914 21.79      
4 A' 2783 2745 159.19      
5 A' 1777 1752 126.68      
6 A' 1464 1444 7.75      
7 A' 1411 1391 13.13      
8 A' 1383 1364 12.73      
9 A' 1370 1351 2.55      
10 A' 1319 1301 11.25      
11 A' 1087 1072 13.53      
12 A' 978 965 0.84      
13 A' 843 832 23.83      
14 A' 656 647 3.38      
15 A' 247 243 8.39      
16 A" 3085 3043 16.61      
17 A" 2983 2942 8.43      
18 A" 1458 1438 6.74      
19 A" 1237 1220 0.14      
20 A" 1104 1089 0.20      
21 A" 872 860 3.19      
22 A" 644 636 4.46      
23 A" 225 222 0.18      
24 A" 120 118 1.00      

Unscaled Zero Point Vibrational Energy (zpe) 18045.2 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 17798.0 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 PBEPBE/6-31G**
ABC
0.55043 0.19416 0.15159

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.457 0.463 0.000
C2 0.000 0.918 0.000
C3 -1.001 -0.217 0.000
O4 -0.709 -1.402 0.000
H5 2.142 1.324 0.000
H6 1.673 -0.155 0.885
H7 1.673 -0.155 -0.885
H8 -0.237 1.557 0.875
H9 -0.237 1.557 -0.875
H10 -2.078 0.111 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52602.55002.85761.10061.10071.10072.19792.19793.5522
C21.52601.51322.42582.18032.17532.17531.10901.10902.2291
C32.55001.51321.22093.50062.81732.81732.12042.12041.1261
O42.85762.42581.22093.94432.83032.83033.12173.12172.0415
H51.10062.18033.50063.94431.78601.78602.54552.54554.3910
H61.10072.17532.81732.83031.78601.77032.56483.11043.8633
H71.10072.17532.81732.83031.78601.77033.11042.56483.8633
H82.19791.10902.12043.12172.54552.56483.11041.74912.4989
H92.19791.10902.12043.12172.54553.11042.56481.74912.4989
H103.55222.22911.12612.04154.39103.86333.86332.49892.4989

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.075 C1 C2 H8 112.080
C1 C2 H9 112.080 C2 C1 H5 111.181
C2 C1 H6 110.778 C2 C1 H7 110.778
C2 C3 O4 124.710 C2 C3 H10 114.457
C3 C2 H8 106.916 C3 C2 H9 106.916
O4 C3 H10 120.833 H5 C1 H6 108.454
H5 C1 H7 108.454 H6 C1 H7 107.058
H8 C2 H9 104.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.362      
2 C -0.296      
3 C 0.260      
4 O -0.358      
5 H 0.120      
6 H 0.141      
7 H 0.141      
8 H 0.143      
9 H 0.143      
10 H 0.070      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.040 2.451 0.000 2.452
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.019 -1.536 0.000
y -1.536 -27.697 0.000
z 0.000 0.000 -24.014
Traceless
 xyz
x 1.836 -1.536 0.000
y -1.536 -3.680 0.000
z 0.000 0.000 1.844
Polar
3z2-r23.688
x2-y23.678
xy-1.536
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.826 0.054 0.000
y 0.054 5.905 0.000
z 0.000 0.000 4.090


<r2> (average value of r2) Å2
<r2> 85.253
(<r2>)1/2 9.233