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

using model chemistry: MP4=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-265.315569
Energy at 298.15K-265.316932
HF Energy-264.463836
Nuclear repulsion energy142.518081
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 MP4=FULL/aug-cc-pVDZ
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' 3711 3619        
2 A' 3454 3368        
3 A' 2110 2058        
4 A' 1717 1675        
5 A' 1345 1312        
6 A' 1158 1130        
7 A' 803 783        
8 A' 606 591        
9 A' 553 540        
10 A' 509 496        
11 A' 152 148        
12 A" 742 724        
13 A" 621 605        
14 A" 593 578        
15 A" 184 179        

Unscaled Zero Point Vibrational Energy (zpe) 9128.1 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 8901.7 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 MP4=FULL/aug-cc-pVDZ
ABC
0.39252 0.13422 0.10002

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.497 0.000
C2 -0.207 -0.951 0.000
C3 -0.482 -2.154 0.000
O4 1.330 0.806 0.000
O5 -0.898 1.329 0.000
H6 -0.695 -3.209 0.000
H7 1.375 1.780 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.46282.69421.36561.22403.77081.8809
C21.46281.23362.33492.38212.31023.1566
C32.69421.23363.47063.50721.07684.3503
O41.36562.33493.47062.28874.49720.9750
O51.22402.38213.50722.28874.54242.3178
H63.77082.31021.07684.49724.54245.4019
H71.88093.15664.35030.97502.31785.4019

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 175.281 C1 O4 H7 105.739
C2 C1 O4 111.233 C2 C1 O5 124.655
C2 C3 H6 178.550 O4 C1 O5 124.112
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability