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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-265.207291
Energy at 298.15K-265.208923
HF Energy-264.449746
Nuclear repulsion energy143.379341
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/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' 3761 3574 99.06      
2 A' 3500 3327 61.17      
3 A' 2151 2044 58.92      
4 A' 1823 1733 263.72      
5 A' 1387 1318 107.98      
6 A' 1204 1144 347.03      
7 A' 830 789 30.80      
8 A' 666 633 30.34      
9 A' 581 552 5.47      
10 A' 530 504 23.43      
11 A' 181 172 4.38      
12 A" 778 739 58.08      
13 A" 669 635 10.51      
14 A" 605 575 92.37      
15 A" 256 243 6.28      

Unscaled Zero Point Vibrational Energy (zpe) 9459.9 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 8990.7 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/cc-pVDZ
ABC
0.39892 0.13545 0.10111

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.501 0.000
C2 -0.215 -0.944 0.000
C3 -0.469 -2.148 0.000
O4 1.318 0.795 0.000
O5 -0.890 1.326 0.000
H6 -0.681 -3.202 0.000
H7 1.353 1.769 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.46022.68951.35081.21393.76491.8548
C21.46021.23042.31822.36842.30603.1334
C32.68951.23043.44323.49941.07564.3199
O41.35082.31823.44322.27094.46960.9745
O51.21392.36843.49942.27094.53342.2861
H63.76492.30601.07564.46964.53345.3714
H71.85483.13344.31990.97452.28615.3714

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 176.524 C1 O4 H7 104.652
C2 C1 O4 111.054 C2 C1 O5 124.415
C2 C3 H6 179.438 O4 C1 O5 124.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability