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

using model chemistry: MP2=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-265.382426
Energy at 298.15K-265.384094
HF Energy-264.498686
Nuclear repulsion energy144.231699
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/6-311G**
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' 3812 3616 97.96      
2 A' 3508 3328 57.37      
3 A' 2156 2045 61.55      
4 A' 1819 1725 277.40      
5 A' 1383 1312 99.38      
6 A' 1201 1140 369.10      
7 A' 834 791 31.29      
8 A' 714 677 32.50      
9 A' 594 564 4.53      
10 A' 539 511 24.52      
11 A' 190 180 4.97      
12 A" 777 737 69.64      
13 A" 705 669 9.36      
14 A" 556 528 93.31      
15 A" 254 241 6.05      

Unscaled Zero Point Vibrational Energy (zpe) 9521.1 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 9031.7 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/6-311G**
ABC
0.40193 0.13740 0.10240

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.497 0.000
C2 -0.234 -0.936 0.000
C3 -0.473 -2.129 0.000
O4 1.318 0.775 0.000
O5 -0.874 1.330 0.000
H6 -0.687 -3.172 0.000
H7 1.377 1.741 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45172.66791.34711.20743.73251.8554
C21.45171.21662.30972.35442.28143.1237
C32.66791.21663.41153.48171.06484.2888
O41.34712.30973.41152.26144.42680.9675
O51.20742.35443.48172.26144.50552.2882
H63.73252.28141.06484.42684.50555.3283
H71.85543.12374.28880.96752.28825.3283

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 177.921 C1 O4 H7 105.388
C2 C1 O4 111.170 C2 C1 O5 124.351
C2 C3 H6 179.745 O4 C1 O5 124.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability