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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-265.048866
Energy at 298.15K-265.050708
HF Energy-264.429389
Nuclear repulsion energy145.180814
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 CID/6-31G*
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' 3873 3577 114.53      
2 A' 3596 3322 45.19      
3 A' 2358 2178 87.18      
4 A' 1955 1805 395.66      
5 A' 1463 1352 132.22      
6 A' 1282 1184 378.42      
7 A' 872 805 38.01      
8 A' 732 676 43.45      
9 A' 634 586 7.29      
10 A' 557 515 30.70      
11 A' 210 194 4.73      
12 A" 818 755 90.98      
13 A" 750 693 18.39      
14 A" 642 593 108.65      
15 A" 276 255 6.81      

Unscaled Zero Point Vibrational Energy (zpe) 10009.1 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 9245.4 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 CID/6-31G*
ABC
0.40923 0.13878 0.10364

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.493 0.000
C2 -0.236 -0.940 0.000
C3 -0.470 -2.113 0.000
O4 1.307 0.775 0.000
O5 -0.866 1.322 0.000
H6 -0.676 -3.155 0.000
H7 1.387 1.738 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.45212.64781.33661.19823.71021.8639
C21.45211.19602.30632.34722.25863.1315
C32.64781.19603.39023.45691.06254.2754
O41.33662.30633.39022.24004.40150.9672
O51.19822.34723.45692.24004.48062.2906
H63.71022.25861.06254.40154.48065.3105
H71.86393.13154.27540.96722.29065.3105

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 178.073 C1 O4 H7 106.918
C2 C1 O4 111.521 C2 C1 O5 124.388
C2 C3 H6 179.879 O4 C1 O5 124.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability