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All results from a given calculation for C3H2O2 (Propiolic acid)

using model chemistry: MP2=FULL/cc-pVTZ

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=FULL/cc-pVTZ
 hartrees
Energy at 0K-265.522383
Energy at 298.15K-265.524077
HF Energy-264.531571
Nuclear repulsion energy144.843339
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=FULL/cc-pVTZ
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' 3774 3583 106.55      
2 A' 3506 3329 58.76      
3 A' 2173 2063 61.27      
4 A' 1808 1716 278.10      
5 A' 1381 1311 112.58      
6 A' 1186 1126 343.66      
7 A' 834 792 27.17      
8 A' 689 654 33.18      
9 A' 593 563 5.82      
10 A' 532 505 24.57      
11 A' 183 174 5.00      
12 A" 787 747 47.29      
13 A" 707 671 27.62      
14 A" 615 583 84.92      
15 A" 260 247 7.18      

Unscaled Zero Point Vibrational Energy (zpe) 9513.1 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9031.8 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 MP2=FULL/cc-pVTZ
ABC
0.40501 0.13880 0.10337

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.490 0.000
C2 -0.225 -0.933 0.000
C3 -0.471 -2.117 0.000
O4 1.312 0.779 0.000
O5 -0.875 1.318 0.000
H6 -0.684 -3.152 0.000
H7 1.363 1.746 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44072.64911.34371.20513.70581.8537
C21.44071.20922.30082.34362.26613.1144
C32.64911.20923.40113.45891.05694.2764
O41.34372.30083.40112.25314.40910.9683
O51.20512.34363.45892.25314.47442.2792
H63.70582.26611.05694.40914.47445.3088
H71.85373.11444.27640.96832.27925.3088

picture of Propiolic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 177.198 C1 O4 H7 105.445
C2 C1 O4 111.390 C2 C1 O5 124.450
C2 C3 H6 179.860 O4 C1 O5 124.160
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability