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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-192.031815
Energy at 298.15K-192.038210
HF Energy-192.031815
Nuclear repulsion energy118.345729
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 mPW1PW91/3-21G
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' 3170 3027 14.06      
2 A' 3093 2953 12.63      
3 A' 3058 2919 17.53      
4 A' 2942 2808 129.14      
5 A' 1769 1689 78.14      
6 A' 1565 1494 10.12      
7 A' 1505 1436 24.31      
8 A' 1474 1407 17.36      
9 A' 1448 1382 4.76      
10 A' 1373 1311 14.49      
11 A' 1131 1080 21.44      
12 A' 1036 989 0.74      
13 A' 868 828 21.83      
14 A' 692 661 2.88      
15 A' 272 259 10.76      
16 A" 3169 3026 14.65      
17 A" 3089 2949 4.21      
18 A" 1566 1495 10.62      
19 A" 1324 1264 0.15      
20 A" 1177 1124 1.08      
21 A" 944 901 2.48      
22 A" 703 672 9.55      
23 A" 241 230 0.46      
24 A" 124 118 1.26      

Unscaled Zero Point Vibrational Energy (zpe) 18865.6 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 18009.1 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 mPW1PW91/3-21G
ABC
0.53933 0.20167 0.15523

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.437 0.418 0.000
C2 0.000 0.937 0.000
C3 -0.998 -0.194 0.000
O4 -0.694 -1.384 0.000
H5 2.153 1.244 0.000
H6 1.614 -0.204 0.881
H7 1.614 -0.204 -0.881
H8 -0.202 1.566 0.879
H9 -0.202 1.566 -0.879
H10 -2.055 0.135 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52802.51142.79091.09301.09321.09322.18612.18613.5032
C21.52801.50872.42222.17512.16422.16421.09981.09982.2056
C32.51141.50871.22773.46432.75722.75722.12282.12281.1062
O42.79092.42221.22773.87452.73802.73803.11733.11732.0387
H51.09302.17513.46433.87451.77861.77862.53482.53484.3516
H61.09322.16422.75722.73801.77861.76302.53643.08743.7882
H71.09322.16422.75722.73801.77861.76303.08742.53643.7882
H82.18611.09982.12283.11732.53482.53643.08741.75782.5006
H92.18611.09982.12283.11732.53483.08742.53641.75782.5006
H103.50322.20561.10622.03874.35163.78823.78822.50062.5006

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.584 C1 C2 H8 111.552
C1 C2 H9 111.552 C2 C1 H5 111.087
C2 C1 H6 110.205 C2 C1 H7 110.205
C2 C3 O4 124.220 C2 C3 H10 114.130
C3 C2 H8 107.904 C3 C2 H9 107.904
O4 C3 H10 121.651 H5 C1 H6 108.891
H5 C1 H7 108.891 H6 C1 H7 107.473
H8 C2 H9 106.089
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.617      
2 C -0.577      
3 C 0.260      
4 O -0.425      
5 H 0.215      
6 H 0.233      
7 H 0.233      
8 H 0.248      
9 H 0.248      
10 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.135 2.504 0.000 2.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.794 -1.604 0.000
y -1.604 -28.027 0.000
z 0.000 0.000 -24.116
Traceless
 xyz
x 2.277 -1.604 0.000
y -1.604 -4.071 0.000
z 0.000 0.000 1.795
Polar
3z2-r23.589
x2-y24.232
xy-1.604
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.981 -0.040 0.000
y -0.040 5.228 0.000
z 0.000 0.000 3.584


<r2> (average value of r2) Å2
<r2> 83.701
(<r2>)1/2 9.149