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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-193.102004
Energy at 298.15K-193.108327
HF Energy-193.102004
Nuclear repulsion energy118.676446
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' 3174 3020 17.50      
2 A' 3089 2940 16.35      
3 A' 3051 2903 22.77      
4 A' 2924 2782 137.26      
5 A' 1865 1775 142.36      
6 A' 1515 1441 8.58      
7 A' 1465 1394 12.09      
8 A' 1437 1367 16.16      
9 A' 1424 1355 2.90      
10 A' 1380 1313 9.71      
11 A' 1126 1072 15.23      
12 A' 1013 963 0.84      
13 A' 876 833 21.56      
14 A' 680 647 5.63      
15 A' 256 244 9.18      
16 A" 3176 3022 17.03      
17 A" 3084 2935 8.72      
18 A" 1510 1436 7.16      
19 A" 1287 1224 0.14      
20 A" 1154 1098 0.13      
21 A" 908 864 3.06      
22 A" 672 640 4.30      
23 A" 232 220 0.40      
24 A" 130 124 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 18713.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 17805.5 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
0.55793 0.19781 0.15427

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 1.446 0.451 0.000
C2 0.000 0.914 0.000
C3 -0.996 -0.214 0.000
O4 -0.704 -1.385 0.000
H5 2.129 1.304 0.000
H6 1.658 -0.161 0.879
H7 1.658 -0.161 -0.879
H8 -0.227 1.546 0.870
H9 -0.227 1.546 -0.870
H10 -2.062 0.103 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.51852.53112.82781.09181.09151.09152.18062.18063.5257
C21.51851.50412.40422.16402.16212.16211.09881.09882.2156
C32.53111.50411.20753.47332.79572.79572.10762.10761.1122
O42.82782.40421.20753.90552.80152.80153.09423.09422.0148
H51.09182.16403.47333.90551.77161.77162.52282.52284.3592
H61.09152.16212.79572.80151.77161.75742.54273.08573.8312
H71.09152.16212.79572.80151.77161.75743.08572.54273.8312
H82.18061.09882.10763.09422.52282.54273.08571.73912.4907
H92.18061.09882.10763.09422.52283.08572.54271.73912.4907
H103.52572.21561.11222.01484.35923.83123.83122.49072.4907

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.729 C1 C2 H8 111.849
C1 C2 H9 111.849 C2 C1 H5 110.941
C2 C1 H6 110.800 C2 C1 H7 110.800
C2 C3 O4 124.552 C2 C3 H10 114.920
C3 C2 H8 107.110 C3 C2 H9 107.110
O4 C3 H10 120.528 H5 C1 H6 108.476
H5 C1 H7 108.476 H6 C1 H7 107.226
H8 C2 H9 104.633
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 -0.392      
2 C -0.340      
3 C 0.288      
4 O -0.398      
5 H 0.132      
6 H 0.153      
7 H 0.153      
8 H 0.156      
9 H 0.156      
10 H 0.092      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.061 2.595 0.000 2.596
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.660 -1.642 0.000
y -1.642 -27.835 0.000
z 0.000 0.000 -23.860
Traceless
 xyz
x 2.188 -1.642 0.000
y -1.642 -4.075 0.000
z 0.000 0.000 1.887
Polar
3z2-r23.774
x2-y24.175
xy-1.642
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.517 0.006 0.000
y 0.006 5.671 0.000
z 0.000 0.000 3.995


<r2> (average value of r2) Å2
<r2> 83.988
(<r2>)1/2 9.165