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

using model chemistry: CCD/6-31G

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/6-31G
 hartrees
Energy at 0K-264.829877
Energy at 298.15K-264.831546
HF Energy-264.303625
Nuclear repulsion energy141.749118
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/6-31G
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' 3648 3500 52.40      
2 A' 3446 3307 33.17      
3 A' 2219 2129 54.58      
4 A' 1755 1683 241.77      
5 A' 1400 1344 57.28      
6 A' 1160 1113 404.72      
7 A' 814 781 16.59      
8 A' 733 704 44.14      
9 A' 619 594 10.88      
10 A' 525 504 29.76      
11 A' 203 194 4.40      
12 A" 749 719 50.76      
13 A" 668 641 49.06      
14 A" 611 586 171.83      
15 A" 248 238 5.63      

Unscaled Zero Point Vibrational Energy (zpe) 9399.4 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 9018.8 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 CCD/6-31G
ABC
0.38582 0.13356 0.09922

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.486 0.000
C2 -0.261 -0.949 0.000
C3 -0.524 -2.143 0.000
O4 1.359 0.764 0.000
O5 -0.863 1.373 0.000
H6 -0.754 -3.191 0.000
H7 1.501 1.735 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45842.68061.38721.23773.75361.9532
C21.45841.22262.35802.39832.29593.2112
C32.68061.22263.46373.53201.07324.3752
O41.38722.35803.46372.30434.48450.9815
O51.23772.39833.53202.30434.56512.3924
H63.75362.29591.07324.48454.56515.4183
H71.95323.21124.37520.98152.39245.4183

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 177.919 C1 O4 H7 109.910
C2 C1 O4 111.894 C2 C1 O5 125.441
C2 C3 H6 179.999 O4 C1 O5 122.665
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability