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All results from a given calculation for CH3CH2COOH (Propanoic Acid)

using model chemistry: QCISD(T)/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 QCISD(T)/6-31G*
 hartrees
Energy at 0K-267.643687
Energy at 298.15K 
HF Energy-266.842131
Nuclear repulsion energy177.473761
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)/6-31G*
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/6-31G*
ABC
0.33383 0.12693 0.09521

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.569 0.000
C2 -0.609 -0.815 0.000
C3 0.450 -1.915 0.000
O4 -0.964 1.535 0.000
O5 1.190 0.832 0.000
H6 -1.268 -0.887 0.878
H7 -1.268 -0.887 -0.878
H8 -0.028 -2.903 0.000
H9 1.093 -1.838 -0.885
H10 1.093 -1.838 0.885
H11 -0.480 2.387 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51242.52531.36421.21852.12112.12113.47272.78762.78761.8796
C21.51241.52722.37672.43871.10011.10012.16722.17322.17323.2045
C32.52531.52723.72892.84492.18682.18681.09761.09631.09634.4016
O41.36422.37673.72892.26562.59372.59374.53564.04794.04790.9798
O51.21852.43872.84492.26563.12503.12503.92852.81392.81392.2816
H62.12111.10012.18682.59373.12501.75512.52463.09582.54503.4796
H72.12111.10012.18682.59373.12501.75512.52462.54503.09583.4796
H83.47272.16721.09764.53563.92852.52462.52461.78181.78185.3092
H92.78762.17321.09634.04792.81393.09582.54501.78181.77044.5935
H102.78762.17321.09634.04792.81392.54503.09581.78181.77044.5935
H111.87963.20454.40160.97982.28163.47963.47965.30924.59354.5935

picture of Propanoic Acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.361 C1 C2 H6 107.510
C1 C2 H7 107.510 C1 O4 H11 105.440
C2 C1 O4 111.318 C2 C1 O5 126.163
C2 C3 H8 110.239 C2 C3 H9 110.795
C2 C3 H10 110.795 C3 C2 H6 111.648
C3 C2 H7 111.648 O4 C1 O5 122.518
H6 C2 H7 105.819 H8 C3 H9 108.618
H8 C3 H10 108.618 H9 C3 H10 107.693
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability