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

using model chemistry: PBEPBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-306.126581
Energy at 298.15K-306.133023
Nuclear repulsion energy225.558983
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/6-31+G**
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 3196 3159 2.26      
2 A 3134 3098 4.04      
3 A 3115 3079 12.47      
4 A 3097 3062 3.76      
5 A 3075 3039 15.82      
6 A 2994 2960 30.90      
7 A 1728 1708 187.22      
8 A 1649 1630 20.83      
9 A 1448 1432 8.40      
10 A 1434 1418 10.00      
11 A 1418 1401 26.28      
12 A 1388 1372 53.02      
13 A 1287 1272 54.98      
14 A 1177 1164 264.09      
15 A 1157 1144 88.32      
16 A 1129 1117 0.23      
17 A 1047 1035 3.30      
18 A 998 986 14.37      
19 A 987 976 32.13      
20 A 954 944 24.58      
21 A 840 830 11.42      
22 A 794 785 23.23      
23 A 643 636 4.02      
24 A 510 504 0.11      
25 A 461 456 1.45      
26 A 325 321 14.40      
27 A 212 210 4.76      
28 A 201 199 4.70      
29 A 123 122 0.11      
30 A 98 97 3.43      

Unscaled Zero Point Vibrational Energy (zpe) 20308.0 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 20076.4 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 PBEPBE/6-31+G**
ABC
0.33515 0.07648 0.06303

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.047 -0.908 -0.002
H2 -2.429 0.541 -0.895
H3 -2.431 0.538 0.897
C4 -2.314 -0.090 -0.000
O5 -1.021 -0.735 0.000
O6 -0.065 1.342 -0.000
C7 0.046 0.120 0.000
H8 1.239 -1.738 -0.000
C9 1.320 -0.647 -0.000
H10 3.449 -0.572 -0.000
H11 2.552 1.078 0.000
C12 2.508 -0.016 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.81051.81041.09752.03293.73503.25934.36584.37436.50435.94065.6259
H21.81051.79211.10132.10042.65132.66574.41064.03306.04915.08945.0484
H31.81041.79211.10132.10042.65482.66764.41074.03426.05055.09195.0502
C41.09751.10131.10131.44492.66652.37003.91713.67645.78345.00484.8229
O52.03292.10042.10041.44492.28641.36772.47312.34264.47314.00693.6017
O63.73502.65132.65482.66652.28641.22713.34502.42354.00172.63072.9096
C73.25932.66572.66762.37001.36771.22712.20811.48643.47232.68272.4654
H84.36584.41064.41073.91712.47313.34502.20811.09442.49833.10702.1391
C94.37434.03304.03423.67642.34262.42351.48641.09442.13052.11971.3453
H106.50436.04916.05055.78344.47314.00173.47232.49832.13051.87801.0931
H115.94065.08945.09195.00484.00692.63072.68273.10702.11971.87801.0947
C125.62595.04845.05024.82293.60172.90962.46542.13911.34531.09311.0947

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 110.850 H1 C4 H3 110.841
H1 C4 O5 105.365 H2 C4 H3 108.901
H2 C4 O5 110.433 H3 C4 O5 110.428
C4 O5 C7 114.814 O5 C7 O6 123.473
O5 C7 C9 110.257 O6 C7 C9 126.270
C7 C9 H8 116.840 C7 C9 C12 120.986
H8 C9 C12 122.175 C9 C12 H10 121.442
C9 C12 H11 120.274 H10 C12 H11 118.283
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.169      
2 H 0.184      
3 H 0.184      
4 C -0.256      
5 O -0.232      
6 O -0.455      
7 C 0.059      
8 H 0.161      
9 C 0.234      
10 H 0.162      
11 H 0.186      
12 C -0.396      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.144 -1.552 -0.000 1.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.338 -0.743 0.001
y -0.743 -39.438 0.000
z 0.001 0.000 -36.957
Traceless
 xyz
x 11.860 -0.743 0.001
y -0.743 -7.791 0.000
z 0.001 0.000 -4.069
Polar
3z2-r2-8.138
x2-y213.100
xy-0.743
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.366 0.518 -0.000
y 0.518 8.092 0.000
z -0.000 0.000 5.618


<r2> (average value of r2) Å2
<r2> 180.040
(<r2>)1/2 13.418