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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-265.312388
Energy at 298.15K 
HF Energy-264.521967
Nuclear repulsion energy144.195280
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/TZVP
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' 3771 3575 96.92      
2 A' 3511 3328 58.09      
3 A' 2167 2054 60.96      
4 A' 1789 1696 305.60      
5 A' 1369 1298 85.94      
6 A' 1188 1126 398.48      
7 A' 831 787 26.99      
8 A' 670 635 35.99      
9 A' 595 564 4.34      
10 A' 535 507 21.73      
11 A' 179 169 5.24      
12 A" 744 705 78.82      
13 A" 585 555 20.87      
14 A" 506 480 85.31      
15 A" 150i 142i 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 9144.1 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 8667.7 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/TZVP
ABC
0.40067 0.13772 0.10249

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.492 0.000
C2 -0.237 -0.935 0.000
C3 -0.486 -2.122 0.000
O4 1.324 0.767 0.000
O5 -0.868 1.335 0.000
H6 -0.702 -3.163 0.000
H7 1.396 1.736 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44662.65911.35191.21003.72161.8696
C21.44661.21302.30932.35582.27573.1304
C32.65911.21303.40893.47821.06274.2922
O41.35192.30933.40892.26444.42080.9712
O51.21002.35583.47822.26444.50072.2998
H63.72162.27571.06274.42084.50075.3285
H71.86963.13044.29220.97122.29985.3285

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 177.639 C1 O4 H7 106.012
C2 C1 O4 111.170 C2 C1 O5 124.697
C2 C3 H6 179.924 O4 C1 O5 124.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability