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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-265.361293
Energy at 298.15K-265.362896
HF Energy-264.488971
Nuclear repulsion energy144.231932
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
(Å4/u)
Dep P Dep U
1 A' 3764 3565 80.97      
2 A' 3489 3304 51.17      
3 A' 2157 2043 65.28      
4 A' 1819 1723 288.65      
5 A' 1395 1321 76.58      
6 A' 1216 1152 400.26      
7 A' 835 791 31.69      
8 A' 643 609 39.09      
9 A' 594 563 2.47      
10 A' 539 511 27.02      
11 A' 188 178 4.96      
12 A" 785 743 76.21      
13 A" 634 601 0.53      
14 A" 587 556 126.75      
15 A" 251 237 5.55      

Unscaled Zero Point Vibrational Energy (zpe) 9446.9 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 8947.2 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
0.40258 0.13732 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 0.495 0.000
C2 -0.228 -0.937 0.000
C3 -0.474 -2.129 0.000
O4 1.315 0.780 0.000
O5 -0.877 1.327 0.000
H6 -0.687 -3.173 0.000
H7 1.391 1.745 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45062.66691.34531.20813.73241.8702
C21.45061.21692.30852.35492.28273.1333
C32.66691.21693.41493.47921.06574.2998
O41.34532.30853.41492.25864.43130.9683
O51.20812.35493.47922.25864.50382.3060
H63.73242.28271.06574.43134.50385.3396
H71.87023.13334.29980.96832.30605.3396

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 177.404 C1 O4 H7 106.728
C2 C1 O4 111.259 C2 C1 O5 124.434
C2 C3 H6 179.920 O4 C1 O5 124.308
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability