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

using model chemistry: MP3=FULL/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 MP3=FULL/6-31+G**
 hartrees
Energy at 0K-305.652237
Energy at 298.15K-305.658873
HF Energy-304.697689
Nuclear repulsion energy227.744385
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 MP3=FULL/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 3359 3129 2.80      
2 A 3303 3077 2.34      
3 A 3278 3054 14.99      
4 A 3257 3035 3.30      
5 A 3247 3025 18.80      
6 A 3156 2940 30.20      
7 A 1869 1742 237.73      
8 A 1756 1636 19.91      
9 A 1558 1452 8.60      
10 A 1542 1437 6.71      
11 A 1532 1427 26.38      
12 A 1492 1390 77.46      
13 A 1375 1281 154.46      
14 A 1294 1206 344.20      
15 A 1249 1163 14.60      
16 A 1213 1130 2.36      
17 A 1116 1039 3.27      
18 A 1077 1003 14.29      
19 A 1026 955 39.47      
20 A 985 917 23.41      
21 A 900 839 11.32      
22 A 823 766 30.17      
23 A 685 639 7.94      
24 A 522 486 0.02      
25 A 483 450 1.78      
26 A 352 328 16.64      
27 A 228 213 4.56      
28 A 184 171 6.05      
29 A 151 141 0.89      
30 A 76 71 2.10      

Unscaled Zero Point Vibrational Energy (zpe) 21542.6 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 20069.1 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 MP3=FULL/6-31+G**
ABC
0.34510 0.07757 0.06410

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -3.021 -0.898 -0.003
H2 -2.421 0.532 -0.883
H3 -2.423 0.527 0.887
C4 -2.300 -0.089 0.000
O5 -1.017 -0.716 0.000
O6 -0.055 1.324 -0.000
C7 0.037 0.117 -0.001
H8 1.238 -1.727 -0.002
C9 1.315 -0.650 -0.001
H10 3.423 -0.553 0.001
H11 2.533 1.067 0.002
C12 2.490 -0.013 0.001

Atom - Atom Distances (Å)
  H1 H2 H3 C4 O5 O6 C7 H8 C9 H10 H11 C12
H11.78321.78321.08332.01213.70553.22134.33834.34286.45335.89105.5811
H21.78321.77061.08672.07642.64642.64414.38924.01666.00965.06065.0191
H31.78321.77061.08682.07652.65172.64744.39014.01856.01165.06395.0216
C41.08331.08671.08681.42882.65262.34603.89873.65865.74254.96964.7906
O52.01212.07642.07651.42882.25541.34302.47042.33274.44313.97253.5764
O63.70552.64642.65172.65262.25541.21053.31302.40233.95262.60082.8742
C73.22132.64412.64742.34601.34301.21052.20011.49043.45242.67112.4565
H84.33834.38924.39013.89872.47043.31302.20011.07982.48073.07912.1227
C94.34284.01664.01853.65862.33272.40231.49041.07982.11062.10461.3364
H106.45336.00966.01165.74254.44313.95263.45242.48072.11061.84871.0791
H115.89105.06065.06394.96963.97252.60082.67113.07912.10461.84871.0801
C125.58115.01915.02164.79063.57642.87422.45652.12271.33641.07911.0801

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 110.521 H1 C4 H3 110.511
H1 C4 O5 105.623 H2 C4 H3 109.102
H2 C4 O5 110.525 H3 C4 O5 110.530
C4 O5 C7 115.604 O5 C7 O6 123.995
O5 C7 C9 110.721 O6 C7 C9 125.284
C7 C9 H8 116.833 C7 C9 C12 120.586
H8 C9 C12 122.582 C9 C12 H10 121.439
C9 C12 H11 120.775 H10 C12 H11 117.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability