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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-193.094032
Energy at 298.15K-193.100365
HF Energy-193.094032
Nuclear repulsion energy118.634577
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 mPW1PW91/6-31G*
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' 3175 3010 18.75      
2 A' 3095 2935 16.71      
3 A' 3053 2895 24.47      
4 A' 2936 2784 140.91      
5 A' 1868 1771 142.57      
6 A' 1532 1453 9.00      
7 A' 1484 1407 13.52      
8 A' 1451 1376 15.60      
9 A' 1436 1362 2.55      
10 A' 1391 1319 9.55      
11 A' 1132 1074 15.39      
12 A' 1020 967 0.87      
13 A' 878 833 20.92      
14 A' 681 645 5.62      
15 A' 258 245 9.07      
16 A" 3178 3014 18.07      
17 A" 3085 2925 9.47      
18 A" 1528 1449 7.53      
19 A" 1297 1230 0.13      
20 A" 1160 1100 0.10      
21 A" 912 864 3.13      
22 A" 678 643 4.28      
23 A" 234 221 0.36      
24 A" 134 127 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 18796.4 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 17824.6 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 mPW1PW91/6-31G*
ABC
0.55763 0.19765 0.15417

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.447 0.451 0.000
C2 0.000 0.914 0.000
C3 -0.996 -0.214 0.000
O4 -0.705 -1.386 0.000
H5 2.129 1.304 0.000
H6 1.658 -0.162 0.880
H7 1.658 -0.162 -0.880
H8 -0.225 1.547 0.871
H9 -0.225 1.547 -0.871
H10 -2.062 0.101 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.51912.53132.82841.09291.09251.09252.18062.18063.5264
C21.51911.50482.40552.16472.16362.16361.09961.09962.2169
C32.53131.50481.20743.47432.79652.79652.11012.11011.1121
O42.82842.40551.20743.90722.80272.80273.09653.09652.0134
H51.09292.16473.47433.90721.77321.77322.52212.52214.3609
H61.09252.16362.79652.80271.77321.75952.54293.08713.8322
H71.09252.16362.79652.80271.77321.75953.08712.54293.8322
H82.18061.09962.11013.09652.52212.54293.08711.74132.4947
H92.18061.09962.11013.09652.52213.08712.54291.74132.4947
H103.52642.21691.11212.01344.36093.83223.83222.49472.4947

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.666 C1 C2 H8 111.758
C1 C2 H9 111.758 C2 C1 H5 110.885
C2 C1 H6 110.819 C2 C1 H7 110.819
C2 C3 O4 124.608 C2 C3 H10 114.982
C3 C2 H8 107.206 C3 C2 H9 107.206
O4 C3 H10 120.410 H5 C1 H6 108.462
H5 C1 H7 108.462 H6 C1 H7 107.272
H8 C2 H9 104.708
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.515      
2 C -0.418      
3 C 0.247      
4 O -0.388      
5 H 0.173      
6 H 0.191      
7 H 0.191      
8 H 0.195      
9 H 0.195      
10 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.072 2.594 0.000 2.595
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.709 -1.635 0.000
y -1.635 -27.849 0.000
z 0.000 0.000 -23.850
Traceless
 xyz
x 2.141 -1.635 0.000
y -1.635 -4.070 0.000
z 0.000 0.000 1.929
Polar
3z2-r23.858
x2-y24.140
xy-1.635
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.432 0.004 0.000
y 0.004 5.614 0.000
z 0.000 0.000 3.936


<r2> (average value of r2) Å2
<r2> 84.049
(<r2>)1/2 9.168