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

using model chemistry: MP3=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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-265.174043
Energy at 298.15K-265.175724
HF Energy-264.427690
Nuclear repulsion energy144.468616
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 MP3=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' 3765 3532 90.69      
2 A' 3532 3314 43.86      
3 A' 2307 2165 75.47      
4 A' 1916 1798 338.02      
5 A' 1435 1347 107.56      
6 A' 1251 1174 377.80      
7 A' 854 801 33.34      
8 A' 661 620 43.48      
9 A' 612 574 5.56      
10 A' 544 510 28.94      
11 A' 197 185 4.19      
12 A" 788 739 79.79      
13 A" 659 618 4.16      
14 A" 625 587 124.22      
15 A" 260 244 5.05      

Unscaled Zero Point Vibrational Energy (zpe) 9702.4 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 9103.8 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 MP3=FULL/6-31G*
ABC
0.40447 0.13770 0.10273

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.490 0.000
C2 -0.236 -0.942 0.000
C3 -0.470 -2.122 0.000
O4 1.313 0.784 0.000
O5 -0.871 1.323 0.000
H6 -0.675 -3.169 0.000
H7 1.372 1.758 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45112.65351.34591.20563.72041.8681
C21.45111.20282.31932.35252.26983.1423
C32.65351.20283.40943.46821.06704.2946
O41.34592.31933.40942.25014.42500.9756
O51.20562.35253.46822.25014.49612.2847
H63.72042.26981.06704.42504.49615.3352
H71.86813.14234.29460.97562.28475.3352

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 178.130 C1 O4 H7 106.065
C2 C1 O4 111.983 C2 C1 O5 124.371
C2 C3 H6 179.891 O4 C1 O5 123.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability