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

using model chemistry: CCD/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 CCD/cc-pVTZ
 hartrees
Energy at 0K-265.446183
Energy at 298.15K-265.447907
HF Energy-264.533753
Nuclear repulsion energy144.986591
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 CCD/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' 3841 3586 99.59      
2 A' 3495 3264 49.32      
3 A' 2254 2104 66.83      
4 A' 1884 1759 349.97      
5 A' 1410 1317 107.55      
6 A' 1226 1145 357.59      
7 A' 840 785 34.51      
8 A' 700 653 35.02      
9 A' 607 567 6.25      
10 A' 541 505 24.28      
11 A' 191 179 4.99      
12 A" 794 742 59.58      
13 A" 727 679 21.78      
14 A" 599 559 87.49      
15 A" 252 236 7.15      

Unscaled Zero Point Vibrational Energy (zpe) 9680.8 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 9038.9 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 CCD/cc-pVTZ
ABC
0.40820 0.13823 0.10326

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.497 0.000
C2 -0.239 -0.940 0.000
C3 -0.473 -2.118 0.000
O4 1.311 0.775 0.000
O5 -0.864 1.323 0.000
H6 -0.681 -3.159 0.000
H7 1.382 1.736 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45612.65661.34011.19613.71841.8567
C21.45611.20082.31182.34782.26273.1291
C32.65661.20083.39853.46321.06194.2772
O41.34012.31183.39852.24314.40960.9638
O51.19612.34783.46322.24314.48612.2841
H63.71842.26271.06194.40964.48615.3122
H71.85673.12914.27720.96382.28415.3122

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 178.257 C1 O4 H7 106.249
C2 C1 O4 111.467 C2 C1 O5 124.266
C2 C3 H6 179.912 O4 C1 O5 124.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability