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

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-304.792575
Energy at 298.15K-304.799531
Nuclear repulsion energy230.238377
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 HF/6-311+G(3df,2p)
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 3387 3078 2.46      
2 A 3346 3040 2.82      
3 A 3296 2995 6.89      
4 A 3290 2990 24.52      
5 A 3271 2972 26.93      
6 A 3198 2906 40.73      
7 A 1960 1781 296.44      
8 A 1833 1665 43.25      
9 A 1624 1476 6.47      
10 A 1613 1466 8.44      
11 A 1613 1465 40.86      
12 A 1557 1415 120.51      
13 A 1444 1312 182.69      
14 A 1369 1244 397.32      
15 A 1325 1204 66.61      
16 A 1292 1174 2.93      
17 A 1170 1063 1.48      
18 A 1145 1040 23.40      
19 A 1127 1024 20.33      
20 A 1115 1013 36.83      
21 A 949 862 11.01      
22 A 929 844 41.29      
23 A 726 660 10.29      
24 A 577 524 0.00      
25 A 505 459 2.71      
26 A 369 335 17.38      
27 A 239 217 5.64      
28 A 204 185 4.17      
29 A 163 148 1.11      
30 A 92 84 3.09      

Unscaled Zero Point Vibrational Energy (zpe) 22363.5 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 20319.4 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 HF/6-311+G(3df,2p)
ABC
0.35721 0.07845 0.06510

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.991 -0.917 -0.002
H2 -2.424 0.513 -0.879
H3 -2.425 0.510 0.881
C4 -2.288 -0.099 0.000
O5 -1.005 -0.689 0.000
O6 -0.055 1.301 -0.000
C7 0.035 0.122 -0.000
H8 1.237 -1.709 -0.000
C9 1.312 -0.640 -0.000
H10 3.396 -0.558 0.000
H11 2.517 1.057 0.000
C12 2.470 -0.015 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.77041.77031.07771.99923.67943.19914.30174.31226.39665.85055.5345
H21.77041.75991.07982.05722.64712.64074.37204.00785.98245.04805.0002
H31.77031.75991.07982.05722.64952.64214.37224.00865.98345.04975.0014
C41.07771.07981.07981.41262.63612.33393.87563.64115.70254.94224.7588
O51.99922.05722.05721.41262.20541.31842.46312.31774.40233.93053.5392
O63.67942.64712.64952.63612.20541.18333.27642.37453.92002.58362.8477
C73.19912.64072.64212.33391.31841.18332.19021.48703.42862.65212.4385
H84.30174.37204.37223.87562.46313.27642.19021.07232.44643.04772.0950
C94.31224.00784.00863.64112.31772.37451.48701.07232.08482.08041.3150
H106.39665.98245.98345.70254.40233.92003.42862.44642.08481.83851.0732
H115.85055.04805.04974.94223.93052.58362.65213.04772.08041.83851.0731
C125.53455.00025.00144.75883.53922.84772.43852.09501.31501.07321.0731

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 110.278 H1 C4 H3 110.274
H1 C4 O5 106.011 H2 C4 H3 109.160
H2 C4 O5 110.546 H3 C4 O5 110.544
C4 O5 C7 117.386 O5 C7 O6 123.565
O5 C7 C9 111.269 O6 C7 C9 125.166
C7 C9 H8 116.764 C7 C9 C12 120.865
H8 C9 C12 122.370 C9 C12 H10 121.279
C9 C12 H11 120.854 H10 C12 H11 117.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.121      
2 H 0.128      
3 H 0.128      
4 C 0.158      
5 O -0.770      
6 O -0.910      
7 C 0.934      
8 H 0.121      
9 C -0.047      
10 H 0.144      
11 H 0.158      
12 C -0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.012 -1.721 -0.000 1.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.734 -0.480 0.001
y -0.480 -39.303 0.001
z 0.001 0.001 -36.523
Traceless
 xyz
x 12.179 -0.480 0.001
y -0.480 -8.175 0.001
z 0.001 0.001 -4.004
Polar
3z2-r2-8.008
x2-y213.569
xy-0.480
xz0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.704 0.478 0.000
y 0.478 7.350 0.000
z 0.000 0.000 5.734


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