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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-35.654984
Energy at 298.15K-35.661466
HF Energy-35.654984
Nuclear repulsion energy66.836085
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 HF/CEP-121G*
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' 3266 2951 46.84 67.55 0.75 0.86
2 A' 3198 2889 19.96 196.60 0.01 0.02
3 A' 3180 2873 73.70 80.91 0.11 0.20
4 A' 3121 2820 117.11 125.70 0.47 0.64
5 A' 1973 1782 231.69 9.94 0.52 0.68
6 A' 1630 1472 7.22 5.88 0.75 0.86
7 A' 1598 1444 7.71 11.58 0.73 0.85
8 A' 1557 1407 7.79 5.72 0.56 0.72
9 A' 1529 1381 14.67 6.99 0.55 0.71
10 A' 1502 1357 2.58 1.30 0.13 0.22
11 A' 1195 1080 16.00 3.90 0.44 0.61
12 A' 1065 962 1.91 5.36 0.68 0.81
13 A' 901 814 14.58 14.20 0.18 0.30
14 A' 709 640 14.43 1.74 0.75 0.86
15 A' 269 243 10.14 0.48 0.43 0.60
16 A" 3281 2964 50.82 40.16 0.75 0.86
17 A" 3207 2897 26.41 95.89 0.75 0.86
18 A" 1623 1467 5.25 12.30 0.75 0.86
19 A" 1392 1257 0.76 5.69 0.75 0.86
20 A" 1259 1137 0.00 1.04 0.75 0.86
21 A" 974 880 1.87 4.05 0.75 0.86
22 A" 728 658 0.98 3.43 0.75 0.86
23 A" 246 222 0.61 0.71 0.75 0.86
24 A" 133 121 5.18 1.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19767.9 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 17858.4 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 HF/CEP-121G*
ABC
0.56403 0.19372 0.15218

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.464 0.462 0.000
C2 0.000 0.914 0.000
C3 -1.002 -0.226 0.000
O4 -0.720 -1.387 0.000
H5 2.123 1.326 0.000
H6 1.685 -0.139 0.876
H7 1.685 -0.139 -0.876
H8 -0.224 1.534 0.868
H9 -0.224 1.534 -0.868
H10 -2.057 0.083 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53192.56032.86141.08681.08511.08512.17972.17973.5415
C21.53191.51802.41092.16292.17152.17151.09051.09052.2188
C32.56031.51801.19473.48972.82812.82812.11202.11201.0996
O42.86142.41091.19473.92982.84812.84813.08813.08811.9876
H51.08682.16293.48973.92981.76171.76172.51112.51114.3615
H61.08512.17152.82812.84811.76171.75222.53833.08003.8503
H71.08512.17152.82812.84811.76171.75223.08002.53833.8503
H82.17971.09052.11203.08812.51112.53833.08001.73662.4947
H92.17971.09052.11203.08812.51113.08002.53831.73662.4947
H103.54152.21881.09961.98764.36153.85033.85032.49472.4947

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.167 C1 C2 H8 111.333
C1 C2 H9 111.333 C2 C1 H5 110.215
C2 C1 H6 110.999 C2 C1 H7 110.999
C2 C3 O4 125.010 C2 C3 H10 114.979
C3 C2 H8 106.983 C3 C2 H9 106.983
O4 C3 H10 120.011 H5 C1 H6 108.420
H5 C1 H7 108.420 H6 C1 H7 107.689
H8 C2 H9 105.545
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.504      
2 C -0.275      
3 C 0.180      
4 O -0.368      
5 H 0.167      
6 H 0.169      
7 H 0.169      
8 H 0.169      
9 H 0.169      
10 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.216 3.013 0.000 3.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.916 -1.940 0.000
y -1.940 -29.243 0.000
z 0.000 0.000 -24.224
Traceless
 xyz
x 2.817 -1.940 0.000
y -1.940 -5.173 0.000
z 0.000 0.000 2.355
Polar
3z2-r24.711
x2-y25.326
xy-1.940
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.492 -0.110 0.000
y -0.110 5.751 0.000
z 0.000 0.000 4.259


<r2> (average value of r2) Å2
<r2> 71.829
(<r2>)1/2 8.475