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

using model chemistry: MP2/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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-265.248822
Energy at 298.15K-265.250246
HF Energy-264.465005
Nuclear repulsion energy142.915881
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/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' 3728 3575 100.62      
2 A' 3481 3339 58.51      
3 A' 2134 2046 61.06      
4 A' 1756 1684 301.51      
5 A' 1353 1298 82.99      
6 A' 1173 1125 387.83      
7 A' 819 785 20.85      
8 A' 622 596 33.52      
9 A' 565 542 6.11      
10 A' 517 496 22.95      
11 A' 152 146 4.65      
12 A" 755 724 53.59      
13 A" 625 599 46.61      
14 A" 594 570 61.19      
15 A" 198 190 4.46      

Unscaled Zero Point Vibrational Energy (zpe) 9234.8 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 8856.1 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/aug-cc-pVDZ
ABC
0.39502 0.13494 0.10058

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.497 0.000
C2 -0.218 -0.944 0.000
C3 -0.481 -2.149 0.000
O4 1.328 0.794 0.000
O5 -0.889 1.332 0.000
H6 -0.696 -3.202 0.000
H7 1.381 1.768 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45742.68901.36061.22013.76361.8769
C21.45741.23302.32642.37332.30773.1484
C32.68901.23303.45443.50501.07484.3367
O41.36062.32643.45442.28124.47940.9749
O51.22012.37333.50502.28124.53832.3117
H63.76362.30771.07484.47944.53835.3863
H71.87693.14844.33670.97492.31175.3863

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 176.311 C1 O4 H7 105.773
C2 C1 O4 111.241 C2 C1 O5 124.607
C2 C3 H6 179.251 O4 C1 O5 124.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability