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

using model chemistry: CCD/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 CCD/6-31+G**
 hartrees
Energy at 0K-265.194543
Energy at 298.15K-265.196157
HF Energy-264.444682
Nuclear repulsion energy144.027947
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/6-31+G**
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' 3853 3631 95.51      
2 A' 3523 3320 47.10      
3 A' 2260 2130 68.47      
4 A' 1865 1758 390.83      
5 A' 1399 1318 115.21      
6 A' 1224 1154 380.03      
7 A' 843 794 30.96      
8 A' 672 633 44.64      
9 A' 598 564 6.34      
10 A' 535 504 25.30      
11 A' 184 173 5.40      
12 A" 772 727 75.22      
13 A" 669 630 15.34      
14 A" 588 554 113.52      
15 A" 240 226 5.29      

Unscaled Zero Point Vibrational Energy (zpe) 9612.5 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 9057.9 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/6-31+G**
ABC
0.40123 0.13690 0.10207

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.496 0.000
C2 -0.242 -0.941 0.000
C3 -0.479 -2.128 0.000
O4 1.321 0.775 0.000
O5 -0.870 1.335 0.000
H6 -0.690 -3.172 0.000
H7 1.407 1.739 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45702.66731.35011.20943.73201.8779
C21.45701.21052.32072.36172.27543.1470
C32.66731.21053.41553.48571.06494.3030
O41.35012.32073.41552.26194.42930.9687
O51.20942.36173.48572.26194.51092.3129
H63.73202.27541.06494.42934.51095.3404
H71.87793.14704.30300.96872.31295.3404

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 178.251 C1 O4 H7 107.014
C2 C1 O4 111.469 C2 C1 O5 124.424
C2 C3 H6 179.855 O4 C1 O5 124.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability