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

using model chemistry: QCISD(T)/aug-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 QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-265.297006
Energy at 298.15K-265.298348
HF Energy-264.465268
Nuclear repulsion energy142.697601
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 QCISD(T)/aug-cc-pVDZ
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' 3727 3644        
2 A' 3440 3363        
3 A' 2145 2097        
4 A' 1760 1721        
5 A' 1358 1327        
6 A' 1173 1147        
7 A' 808 790        
8 A' 596 583        
9 A' 550 537        
10 A' 511 499        
11 A' 148 145        
12 A" 745 728        
13 A" 616 602        
14 A" 590 577        
15 A" 177 173        

Unscaled Zero Point Vibrational Energy (zpe) 9170.2 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 8966.6 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 QCISD(T)/aug-cc-pVDZ
ABC
0.39446 0.13425 0.10016

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.500 0.000
C2 -0.220 -0.950 0.000
C3 -0.482 -2.153 0.000
O4 1.330 0.800 0.000
O5 -0.890 1.332 0.000
H6 -0.694 -3.210 0.000
H7 1.383 1.773 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.46642.69571.36351.21853.77361.8798
C21.46641.23062.33792.37852.30863.1598
C32.69571.23063.46413.50871.07814.3458
O41.36352.33793.46412.28274.49130.9743
O51.21852.37853.50872.28274.54612.3150
H63.77362.30861.07814.49134.54615.3979
H71.87983.15984.34580.97432.31505.3979

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 176.370 C1 O4 H7 105.839
C2 C1 O4 111.359 C2 C1 O5 124.464
C2 C3 H6 179.072 O4 C1 O5 124.177
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability