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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-192.082971
Energy at 298.15K-192.089336
HF Energy-192.082971
Nuclear repulsion energy117.899162
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/3-21G
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' 3138 3028 17.71      
2 A' 3071 2963 13.90      
3 A' 3032 2925 18.45      
4 A' 2902 2800 138.75      
5 A' 1743 1682 75.88      
6 A' 1565 1510 8.40      
7 A' 1508 1455 21.26      
8 A' 1471 1420 11.59      
9 A' 1442 1391 5.15      
10 A' 1365 1317 11.65      
11 A' 1120 1081 20.08      
12 A' 1019 983 1.55      
13 A' 846 816 21.09      
14 A' 684 660 2.75      
15 A' 270 261 10.14      
16 A" 3137 3027 19.20      
17 A" 3055 2948 6.49      
18 A" 1565 1510 8.43      
19 A" 1319 1273 0.21      
20 A" 1173 1132 0.75      
21 A" 937 904 2.35      
22 A" 704 679 7.09      
23 A" 237 229 0.38      
24 A" 120 116 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 18711.5 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 18054.8 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/3-21G
ABC
0.53710 0.19923 0.15360

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.446 0.423 0.000
C2 0.000 0.939 0.000
C3 -1.003 -0.198 0.000
O4 -0.700 -1.390 0.000
H5 2.158 1.254 0.000
H6 1.627 -0.198 0.882
H7 1.627 -0.198 -0.882
H8 -0.204 1.569 0.879
H9 -0.204 1.569 -0.879
H10 -2.060 0.136 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53572.52722.81031.09371.09391.09392.19272.19273.5183
C21.53571.51632.43252.18112.17182.17181.10041.10042.2112
C32.52721.51631.23043.47882.77392.77392.12922.12921.1083
O42.81032.43251.23043.89382.75962.75963.12673.12672.0441
H51.09372.18113.47883.89381.77981.77982.53982.53984.3639
H61.09392.17182.77392.75961.77981.76472.54363.09413.8054
H71.09392.17182.77392.75961.77981.76473.09412.54363.8054
H82.19271.10042.12923.12672.53982.54363.09411.75862.5046
H92.19271.10042.12923.12672.53983.09412.54361.75862.5046
H103.51832.21121.10832.04414.36393.80543.80542.50462.5046

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.795 C1 C2 H8 111.494
C1 C2 H9 111.494 C2 C1 H5 110.976
C2 C1 H6 110.231 C2 C1 H7 110.231
C2 C3 O4 124.321 C2 C3 H10 113.901
C3 C2 H8 107.856 C3 C2 H9 107.856
O4 C3 H10 121.779 H5 C1 H6 108.894
H5 C1 H7 108.894 H6 C1 H7 107.532
H8 C2 H9 106.076
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.543      
2 C -0.506      
3 C 0.267      
4 O -0.412      
5 H 0.188      
6 H 0.206      
7 H 0.206      
8 H 0.219      
9 H 0.219      
10 H 0.156      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.107 2.413 0.000 2.415
CHELPG        
AIM        
ESP -0.080 2.369 0.000 2.370


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.046 -1.541 0.000
y -1.541 -28.080 0.000
z 0.000 0.000 -24.191
Traceless
 xyz
x 2.089 -1.541 0.000
y -1.541 -3.962 0.000
z 0.000 0.000 1.873
Polar
3z2-r23.745
x2-y24.034
xy-1.541
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.030 -0.032 0.000
y -0.032 5.253 0.000
z 0.000 0.000 3.597


<r2> (average value of r2) Å2
<r2> 84.441
(<r2>)1/2 9.189