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All results from a given calculation for C3H4O2 (2-Propenoic acid)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-266.433799
Energy at 298.15K 
HF Energy-265.670298
Nuclear repulsion energy161.962102
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.35452 0.14531 0.10306

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.337 0.333 0.000
H2 1.779 1.197 0.000
O3 -0.486 1.693 0.000
C4 0.000 0.572 0.000
C5 -0.809 -0.672 0.000
H6 -1.877 -0.498 0.000
C7 -0.286 -1.908 0.000
H8 0.783 -2.071 0.000
H9 -0.923 -2.782 0.000

Atom - Atom Distances (Å)
  O1 H2 O3 C4 C5 H6 C7 H8 H9
O10.97022.27371.35802.36983.31962.76692.46673.8486
H20.97022.31821.88523.19244.02973.72873.41574.8096
O32.27372.31821.22082.38692.59543.60643.97144.4962
C41.35801.88521.22081.48482.16112.49722.75683.4795
C52.36983.19242.38691.48481.08191.34232.11922.1131
H63.31964.02972.59542.16111.08192.12613.09022.4753
C72.76693.72873.60642.49721.34232.12611.08111.0817
H82.46673.41573.97142.75682.11923.09021.08111.8485
H93.84864.80964.49623.47952.11312.47531.08171.8485

picture of 2-Propenoic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C4 O3 123.602 O1 C4 C5 112.869
H2 O1 C4 106.952 O3 C4 C5 123.529
C4 C5 H6 113.772 C4 C5 C7 124.015
C5 C7 H8 121.598 C5 C7 H9 120.948
H6 C5 C7 122.212 H8 C7 H9 117.454
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability