return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/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 CCD/TZVP
 hartrees
Energy at 0K-267.798149
Energy at 298.15K-267.805324
HF Energy-266.943333
Nuclear repulsion energy178.702424
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/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' 3851 3651 62.23      
2 A' 3167 3002 22.73      
3 A' 3096 2935 8.01      
4 A' 3088 2928 20.95      
5 A' 1891 1793 284.86      
6 A' 1531 1451 11.07      
7 A' 1498 1420 8.97      
8 A' 1467 1391 12.98      
9 A' 1449 1374 49.85      
10 A' 1352 1282 0.63      
11 A' 1211 1148 265.77      
12 A' 1116 1058 60.39      
13 A' 1035 981 0.90      
14 A' 842 799 8.37      
15 A' 636 603 21.49      
16 A' 477 452 19.55      
17 A' 259 246 2.06      
18 A" 3174 3009 25.12      
19 A" 3134 2971 2.76      
20 A" 1522 1443 5.80      
21 A" 1305 1237 0.00      
22 A" 1139 1080 0.61      
23 A" 829 786 9.64      
24 A" 631 598 94.47      
25 A" 514 487 35.79      
26 A" 227 215 0.00      
27 A" 24 23 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20232.8 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 19180.7 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/TZVP
ABC
0.34126 0.12765 0.09619

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.571 0.000
C2 -0.598 -0.813 0.000
C3 0.457 -1.910 0.000
O4 -0.961 1.524 0.000
O5 1.171 0.836 0.000
H6 -1.249 -0.886 0.874
H7 -1.249 -0.886 -0.874
H8 -0.022 -2.890 0.000
H9 1.096 -1.836 -0.880
H10 1.096 -1.836 0.880
H11 -0.506 2.374 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50782.52331.35311.20012.10862.10863.46122.78772.78771.8729
C21.50781.52232.36492.41781.09251.09252.15532.16542.16543.1890
C32.52331.52233.71552.83732.17422.17421.09061.08981.08984.3918
O41.35312.36493.71552.23982.57902.57904.51264.03674.03670.9651
O51.20012.41782.83732.23983.09553.09553.91202.81442.81442.2752
H62.10861.09252.17422.57903.09551.74802.50773.07892.53033.4561
H72.10861.09252.17422.57903.09551.74802.50772.53033.07893.4561
H83.46122.15531.09064.51263.91202.50772.50771.77031.77035.2868
H92.78772.16541.08984.03672.81443.07892.53031.77031.76054.5902
H102.78772.16541.08984.03672.81442.53033.07891.77031.76054.5902
H111.87293.18904.39180.96512.27523.45613.45615.28684.59024.5902

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 112.768 C1 C2 H6 107.289
C1 C2 H7 107.289 C1 O4 H11 106.584
C2 C1 O4 111.394 C2 C1 O5 126.098
C2 C3 H8 110.055 C2 C3 H9 110.911
C2 C3 H10 110.911 C3 C2 H6 111.445
C3 C2 H7 111.445 O4 C1 O5 122.509
H6 C2 H7 106.260 H8 C3 H9 108.568
H8 C3 H10 108.568 H9 C3 H10 107.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability