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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: B3LYP/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 B3LYP/CEP-121G*
 hartrees
Energy at 0K-36.539678
Energy at 298.15K-36.545925
HF Energy-36.539678
Nuclear repulsion energy66.164824
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/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' 3102 3007 33.53      
2 A' 3033 2940 24.11      
3 A' 2995 2904 37.80      
4 A' 2871 2783 158.21      
5 A' 1774 1720 160.55      
6 A' 1510 1464 8.48      
7 A' 1467 1422 15.79      
8 A' 1425 1382 12.30      
9 A' 1406 1363 4.78      
10 A' 1363 1321 7.72      
11 A' 1100 1067 14.77      
12 A' 989 959 1.22      
13 A' 836 811 20.76      
14 A' 659 639 5.97      
15 A' 247 240 8.58      
16 A" 3108 3013 35.64      
17 A" 3019 2926 18.44      
18 A" 1503 1457 7.31      
19 A" 1275 1236 0.66      
20 A" 1137 1103 0.30      
21 A" 890 863 1.69      
22 A" 664 643 3.07      
23 A" 221 214 0.45      
24 A" 125 121 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 18358.9 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 17797.1 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/CEP-121G*
ABC
0.55119 0.19103 0.14970

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.470 0.469 0.000
C2 0.000 0.921 0.000
C3 -1.008 -0.222 0.000
O4 -0.720 -1.407 0.000
H5 2.141 1.337 0.000
H6 1.693 -0.141 0.883
H7 1.693 -0.141 -0.883
H8 -0.233 1.553 0.874
H9 -0.233 1.553 -0.874
H10 -2.079 0.095 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.53802.57252.88381.09681.09601.09602.19932.19933.5685
C21.53801.52402.43702.18082.18462.18461.10311.10312.2369
C32.57251.52401.21953.51342.84222.84222.12492.12491.1170
O42.88382.43701.21953.96402.86412.86413.12443.12442.0256
H51.09682.18083.51343.96401.77891.77892.53832.53834.3985
H61.09602.18462.84222.86411.77891.76572.56423.10833.8806
H71.09602.18462.84222.86411.77891.76573.10832.56423.8806
H82.19931.10312.12493.12442.53832.56423.10831.74792.5095
H92.19931.10312.12493.12442.53833.10832.56421.74792.5095
H103.56852.23691.11702.02564.39853.88063.88062.50952.5095

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.305 C1 C2 H8 111.699
C1 C2 H9 111.699 C2 C1 H5 110.611
C2 C1 H6 110.959 C2 C1 H7 110.959
C2 C3 O4 124.948 C2 C3 H10 114.899
C3 C2 H8 106.869 C3 C2 H9 106.869
O4 C3 H10 120.152 H5 C1 H6 108.435
H5 C1 H7 108.435 H6 C1 H7 107.325
H8 C2 H9 104.799
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.530      
2 C -0.236      
3 C 0.056      
4 O -0.257      
5 H 0.167      
6 H 0.174      
7 H 0.174      
8 H 0.173      
9 H 0.173      
10 H 0.106      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.061 2.719 0.000 2.720
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.298 -1.692 0.000
y -1.692 -28.688 0.000
z 0.000 0.000 -24.349
Traceless
 xyz
x 2.221 -1.692 0.000
y -1.692 -4.364 0.000
z 0.000 0.000 2.143
Polar
3z2-r24.287
x2-y24.390
xy-1.692
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.220 -0.050 0.000
y -0.050 6.304 0.000
z 0.000 0.000 4.546


<r2> (average value of r2) Å2
<r2> 72.756
(<r2>)1/2 8.530