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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-192.990201
Energy at 298.15K-192.984167
HF Energy-193.145344
Nuclear repulsion energy118.131423
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 B3LYP/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' 3137 3012 22.60      
2 A' 3068 2946 17.92      
3 A' 3020 2900 25.85      
4 A' 2894 2779 146.98      
5 A' 1835 1763 137.53      
6 A' 1530 1469 7.50      
7 A' 1482 1423 12.55      
8 A' 1448 1390 11.26      
9 A' 1431 1375 3.25      
10 A' 1383 1328 7.89      
11 A' 1120 1076 15.83      
12 A' 1010 970 1.06      
13 A' 858 824 20.34      
14 A' 674 647 5.58      
15 A' 258 248 8.79      
16 A" 3141 3016 22.51      
17 A" 3044 2923 12.58      
18 A" 1525 1464 5.87      
19 A" 1292 1241 0.18      
20 A" 1157 1111 0.04      
21 A" 907 871 3.07      
22 A" 679 652 3.02      
23 A" 230 221 0.30      
24 A" 131 126 1.67      

Unscaled Zero Point Vibrational Energy (zpe) 18626.6 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 17887.1 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 B3LYP/6-31G*
ABC
0.55520 0.19501 0.15240

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.456 0.457 0.000
C2 0.000 0.916 0.000
C3 -1.000 -0.217 0.000
O4 -0.711 -1.394 0.000
H5 2.135 1.316 0.000
H6 1.672 -0.154 0.881
H7 1.672 -0.154 -0.881
H8 -0.227 1.550 0.872
H9 -0.227 1.550 -0.872
H10 -2.068 0.102 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52682.54762.85041.09461.09421.09422.18802.18803.5424
C21.52681.51202.41712.17192.17212.17211.10141.10142.2228
C32.54761.51201.21143.49022.81472.81472.11672.11671.1146
O42.85042.41711.21143.92992.82722.82723.10773.10772.0196
H51.09462.17193.49023.92991.77561.77562.52862.52864.3750
H61.09422.17212.81472.82721.77561.76252.55153.09583.8512
H71.09422.17212.81472.82721.77561.76253.09582.55153.8512
H82.18801.10142.11673.10772.52862.55153.09581.74412.4991
H92.18801.10142.11673.10772.52863.09582.55151.74412.4991
H103.54242.22281.11462.01964.37503.85123.85122.49912.4991

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.919 C1 C2 H8 111.693
C1 C2 H9 111.693 C2 C1 H5 110.815
C2 C1 H6 110.861 C2 C1 H7 110.861
C2 C3 O4 124.748 C2 C3 H10 114.787
C3 C2 H8 107.138 C3 C2 H9 107.138
O4 C3 H10 120.465 H5 C1 H6 108.441
H5 C1 H7 108.441 H6 C1 H7 107.303
H8 C2 H9 104.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.436      
2 C -0.340      
3 C 0.256      
4 O -0.381      
5 H 0.145      
6 H 0.164      
7 H 0.164      
8 H 0.163      
9 H 0.163      
10 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.046 2.545 0.000 2.546
CHELPG -0.030 2.526 0.000 2.527
AIM 0.305 -1.745 0.000 1.771
ESP -0.031 2.526 0.000 2.527


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 84.909
(<r2>)1/2 9.215