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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G
 hartrees
Energy at 0K-264.835708
Energy at 298.15K-264.837309
HF Energy-264.300055
Nuclear repulsion energy141.135091
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=FULL/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' 3591 3412 64.29      
2 A' 3482 3308 43.49      
3 A' 2150 2043 55.52      
4 A' 1671 1588 184.34      
5 A' 1367 1298 65.37      
6 A' 1126 1070 413.70      
7 A' 802 762 12.34      
8 A' 708 673 44.19      
9 A' 616 585 7.94      
10 A' 517 491 29.61      
11 A' 200 190 4.32      
12 A" 745 708 48.22      
13 A" 629 598 133.36      
14 A" 621 590 81.87      
15 A" 234 223 4.02      

Unscaled Zero Point Vibrational Energy (zpe) 9228.9 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 8768.4 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=FULL/6-31G
ABC
0.37997 0.13315 0.09860

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.482 0.000
C2 -0.251 -0.948 0.000
C3 -0.527 -2.149 0.000
O4 1.366 0.764 0.000
O5 -0.874 1.378 0.000
H6 -0.764 -3.192 0.000
H7 1.494 1.742 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45192.68291.39521.25163.75271.9547
C21.45191.23202.35532.40772.30203.2066
C32.68291.23203.47423.54331.07004.3844
O41.39522.35533.47422.32314.49330.9861
O51.25162.40773.54332.32314.57122.3965
H63.75272.30201.07004.49334.57125.4263
H71.95473.20664.38440.98612.39655.4263

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 177.000 C1 O4 H7 109.131
C2 C1 O4 111.622 C2 C1 O5 125.740
C2 C3 H6 179.815 O4 C1 O5 122.638
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability