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All results from a given calculation for C4H6O2 (2-Propenoic acid, methyl ester)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-306.126315
Energy at 298.15K-306.132757
Nuclear repulsion energy226.526590
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 PBEPBE/6-31G(2df,p)
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 3190 3157 2.12      
2 A 3129 3097 4.32      
3 A 3100 3068 14.30      
4 A 3091 3060 3.31      
5 A 3059 3027 16.79      
6 A 2982 2951 27.34      
7 A 1748 1730 136.07      
8 A 1648 1631 19.58      
9 A 1445 1430 6.07      
10 A 1426 1412 6.99      
11 A 1415 1400 24.42      
12 A 1380 1366 52.15      
13 A 1283 1270 51.13      
14 A 1175 1163 248.91      
15 A 1159 1147 73.90      
16 A 1134 1123 0.42      
17 A 1040 1029 2.70      
18 A 1008 997 14.39      
19 A 1003 993 19.28      
20 A 954 944 15.46      
21 A 841 832 7.93      
22 A 803 795 19.50      
23 A 644 637 4.43      
24 A 518 513 0.04      
25 A 462 457 1.29      
26 A 327 323 15.52      
27 A 212 209 2.89      
28 A 203 201 3.18      
29 A 107 106 0.15      
30 A 100 99 2.56      

Unscaled Zero Point Vibrational Energy (zpe) 20291.8 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 20082.8 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 PBEPBE/6-31G(2df,p)
ABC
0.33760 0.07732 0.06368

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.044 -0.891 -0.003
H2 -2.409 0.551 -0.892
H3 -2.411 0.547 0.894
C4 -2.297 -0.086 -0.000
O5 -1.017 -0.740 0.000
O6 -0.068 1.332 0.000
C7 0.044 0.118 0.000
H8 1.236 -1.737 -0.000
C9 1.316 -0.647 -0.000
H10 3.444 -0.549 -0.000
H11 2.521 1.083 0.000
C12 2.495 -0.010 -0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.80921.80901.09792.03223.71393.24794.36274.36676.49695.90455.6081
H21.80921.78601.10152.09752.62332.64524.39524.01346.02215.03815.0156
H31.80901.78601.10152.09752.62762.64754.39554.01496.02405.04135.0179
C41.09791.10151.10151.43772.64152.34973.90033.65695.76024.95814.7927
O52.03222.09752.09751.43772.27861.36422.46402.33514.46533.98023.5869
O63.71392.62332.62762.64152.27861.21903.33482.41533.98482.60152.8934
C73.24792.64522.64752.34971.36421.21902.20551.48503.46562.65882.4546
H84.36274.39524.39553.90032.46403.33482.20551.09302.50713.09922.1370
C94.36674.01344.01493.65692.33512.41531.48501.09302.13022.10841.3397
H106.49696.02216.02405.76024.46533.98483.46562.50712.13021.87571.0919
H115.90455.03815.04134.95813.98022.60152.65883.09922.10841.87571.0936
C125.60815.01565.01794.79273.58692.89342.45462.13701.33971.09191.0936

picture of 2-Propenoic acid, methyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 110.687 H1 C4 H3 110.674
H1 C4 O5 105.766 H2 C4 H3 108.332
H2 C4 O5 110.697 H3 C4 O5 110.694
C4 O5 C7 113.965 O5 C7 O6 123.697
O5 C7 C9 110.017 O6 C7 C9 126.286
C7 C9 H8 116.812 C7 C9 C12 120.602
H8 C9 C12 122.586 C9 C12 H10 122.007
C9 C12 H11 119.759 H10 C12 H11 118.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.141      
2 H 0.151      
3 H 0.151      
4 C -0.286      
5 O -0.205      
6 O -0.343      
7 C 0.407      
8 H 0.119      
9 C -0.123      
10 H 0.137      
11 H 0.149      
12 C -0.297      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.130 -1.447 -0.000 1.453
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.539 -0.657 0.000
y -0.657 -37.596 0.000
z 0.000 0.000 -35.442
Traceless
 xyz
x 9.980 -0.657 0.000
y -0.657 -6.606 0.000
z 0.000 0.000 -3.375
Polar
3z2-r2-6.749
x2-y211.058
xy-0.657
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.648 0.409 -0.000
y 0.409 7.139 0.000
z -0.000 0.000 4.469


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000