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

using model chemistry: PBEPBE/6-311G*

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/6-311G*
 hartrees
Energy at 0K-306.178801
Energy at 298.15K-306.185277
Nuclear repulsion energy226.312928
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/6-311G*
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 3175 3142 5.70      
2 A 3118 3085 5.74      
3 A 3103 3071 19.39      
4 A 3080 3048 7.06      
5 A 3059 3027 24.49      
6 A 2986 2955 31.43      
7 A 1739 1721 161.44      
8 A 1650 1633 21.74      
9 A 1465 1450 8.58      
10 A 1448 1433 9.90      
11 A 1428 1414 20.79      
12 A 1393 1378 55.56      
13 A 1291 1278 44.29      
14 A 1180 1168 122.66      
15 A 1159 1147 231.41      
16 A 1140 1129 0.16      
17 A 1051 1041 2.37      
18 A 999 989 16.59      
19 A 993 982 28.90      
20 A 943 933 23.18      
21 A 844 836 10.52      
22 A 795 787 25.19      
23 A 649 642 3.85      
24 A 514 509 0.08      
25 A 463 458 1.38      
26 A 330 327 15.69      
27 A 215 212 3.45      
28 A 204 202 3.97      
29 A 124 122 0.10      
30 A 100 99 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 20318.2 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 20106.9 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/6-311G*
ABC
0.33767 0.07702 0.06347

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.041 -0.900 -0.002
H2 -2.420 0.544 -0.892
H3 -2.422 0.541 0.894
C4 -2.306 -0.088 -0.000
O5 -1.018 -0.735 0.000
O6 -0.065 1.334 -0.000
C7 0.045 0.121 0.000
H8 1.240 -1.737 -0.000
C9 1.317 -0.646 -0.000
H10 3.444 -0.559 -0.000
H11 2.535 1.079 0.000
C12 2.498 -0.013 -0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.80621.80611.09552.02943.72143.25044.36154.36566.49365.91675.6089
H21.80621.78681.09942.09762.64012.65624.40414.02316.03355.06365.0294
H31.80611.78681.09942.09752.64362.65814.40434.02436.03495.06615.0312
C41.09551.09941.09941.44112.65402.36013.91013.66595.76874.97944.8038
O52.02942.09762.09751.44112.27841.36502.47002.33724.46543.98973.5891
O63.72142.64012.64362.65402.27841.21853.33652.41503.98652.61212.8950
C73.25042.65622.65812.36011.36501.21852.20831.48553.46582.66802.4560
H84.36154.40414.40433.91012.47003.33652.20831.09332.49923.09992.1337
C94.36564.02314.02433.66592.33722.41501.48551.09332.12822.11211.3392
H106.49366.03356.03495.76874.46543.98653.46582.49922.12821.87341.0922
H115.91675.06365.06614.97943.98972.61212.66803.09992.11211.87341.0934
C125.60895.02945.03124.80383.58912.89502.45602.13371.33921.09221.0934

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 110.754 H1 C4 H3 110.745
H1 C4 O5 105.454 H2 C4 H3 108.704
H2 C4 O5 110.589 H3 C4 O5 110.584
C4 O5 C7 114.475 O5 C7 O6 123.655
O5 C7 C9 110.088 O6 C7 C9 126.258
C7 C9 H8 117.006 C7 C9 C12 120.709
H8 C9 C12 122.284 C9 C12 H10 121.830
C9 C12 H11 120.167 H10 C12 H11 118.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.224      
2 H 0.230      
3 H 0.230      
4 C -0.485      
5 O -0.277      
6 O -0.319      
7 C 0.380      
8 H 0.210      
9 C -0.277      
10 H 0.219      
11 H 0.229      
12 C -0.365      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.172 -1.455 -0.000 1.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.420 -0.718 0.001
y -0.718 -38.472 0.000
z 0.001 0.000 -36.428
Traceless
 xyz
x 11.030 -0.718 0.001
y -0.718 -7.047 0.000
z 0.001 0.000 -3.982
Polar
3z2-r2-7.965
x2-y212.051
xy-0.718
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.626 0.473 -0.000
y 0.473 7.233 0.000
z -0.000 0.000 4.437


<r2> (average value of r2) Å2
<r2> 178.659
(<r2>)1/2 13.366