return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: BLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-311G*
 hartrees
Energy at 0K-193.115099
Energy at 298.15K-193.121314
HF Energy-193.115099
Nuclear repulsion energy117.302097
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 BLYP/6-311G*
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' 3033 3025 29.38      
2 A' 2974 2967 22.86      
3 A' 2923 2916 31.82      
4 A' 2747 2740 192.09      
5 A' 1737 1733 141.11      
6 A' 1484 1480 8.35      
7 A' 1428 1424 18.65      
8 A' 1396 1392 12.12      
9 A' 1378 1374 2.45      
10 A' 1323 1320 12.35      
11 A' 1078 1075 15.05      
12 A' 976 974 1.10      
13 A' 813 811 24.37      
14 A' 654 652 3.72      
15 A' 249 248 8.03      
16 A" 3036 3028 31.54      
17 A" 2937 2930 15.80      
18 A" 1477 1473 8.29      
19 A" 1255 1251 0.27      
20 A" 1112 1109 0.34      
21 A" 879 877 2.05      
22 A" 654 652 3.67      
23 A" 222 222 0.36      
24 A" 124 124 1.32      

Unscaled Zero Point Vibrational Energy (zpe) 17943.3 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 17898.4 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 BLYP/6-311G*
ABC
0.55345 0.19035 0.14945

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.471 0.474 0.000
C2 0.000 0.917 0.000
C3 -1.006 -0.226 0.000
O4 -0.722 -1.409 0.000
H5 2.142 1.344 0.000
H6 1.700 -0.137 0.884
H7 1.700 -0.137 -0.884
H8 -0.235 1.555 0.874
H9 -0.235 1.555 -0.874
H10 -2.082 0.100 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53582.57392.89051.09911.09841.09842.19972.19973.5721
C21.53581.52262.43512.18452.18622.18621.10681.10682.2363
C32.57391.52261.21643.51832.84782.84782.12802.12801.1240
O42.89052.43511.21643.97302.87492.87493.12763.12762.0309
H51.09912.18453.51833.97301.78041.78042.54122.54124.4036
H61.09842.18622.84782.87491.78041.76742.56953.11293.8906
H71.09842.18622.84782.87491.78041.76743.11292.56953.8906
H82.19971.10682.12803.12762.54122.56953.11291.74712.5081
H92.19971.10682.12803.12762.54123.11292.56951.74712.5081
H103.57212.23631.12402.03094.40363.89063.89062.50812.5081

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.618 C1 C2 H8 111.664
C1 C2 H9 111.664 C2 C1 H5 110.923
C2 C1 H6 111.093 C2 C1 H7 111.093
C2 C3 O4 125.143 C2 C3 H10 114.505
C3 C2 H8 106.997 C3 C2 H9 106.997
O4 C3 H10 120.352 H5 C1 H6 108.231
H5 C1 H7 108.231 H6 C1 H7 107.123
H8 C2 H9 104.233
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.582      
2 C -0.445      
3 C 0.098      
4 O -0.249      
5 H 0.198      
6 H 0.208      
7 H 0.208      
8 H 0.212      
9 H 0.212      
10 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.026 2.471 0.000 2.472
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.806 -1.494 0.000
y -1.494 -28.647 0.000
z 0.000 0.000 -24.641
Traceless
 xyz
x 1.838 -1.494 0.000
y -1.494 -3.924 0.000
z 0.000 0.000 2.086
Polar
3z2-r24.171
x2-y23.841
xy-1.494
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.243 -0.014 0.000
y -0.014 6.233 0.000
z 0.000 0.000 4.391


<r2> (average value of r2) Å2
<r2> 86.646
(<r2>)1/2 9.308