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

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-265.202733
Energy at 298.15K-265.204431
HF Energy-264.452755
Nuclear repulsion energy143.773391
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 CCD/cc-pVDZ
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' 3821 3655 89.62      
2 A' 3484 3333 49.52      
3 A' 2237 2141 63.56      
4 A' 1900 1818 331.10      
5 A' 1414 1353 102.70      
6 A' 1241 1187 361.70      
7 A' 839 802 36.99      
8 A' 687 657 31.03      
9 A' 594 569 7.03      
10 A' 539 516 22.55      
11 A' 188 179 4.34      
12 A" 790 756 62.52      
13 A" 709 679 15.87      
14 A" 598 572 89.46      
15 A" 259 248 6.85      

Unscaled Zero Point Vibrational Energy (zpe) 9649.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9231.7 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 CCD/cc-pVDZ
ABC
0.40337 0.13547 0.10141

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.505 0.000
C2 -0.229 -0.948 0.000
C3 -0.471 -2.143 0.000
O4 1.316 0.791 0.000
O5 -0.877 1.329 0.000
H6 -0.680 -3.201 0.000
H7 1.370 1.760 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.47042.68951.34621.20323.76721.8579
C21.47041.21972.32552.36692.29753.1445
C32.68951.21973.43503.49571.07784.3154
O41.34622.32553.43502.25734.46230.9708
O51.20322.36693.49572.25734.53372.2874
H63.76722.29751.07784.46234.53375.3673
H71.85793.14454.31540.97082.28745.3673

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 177.531 C1 O4 H7 105.466
C2 C1 O4 111.228 C2 C1 O5 124.264
C2 C3 H6 179.744 O4 C1 O5 124.508
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability