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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-51.385618
Energy at 298.15K-51.392994
HF Energy-51.385618
Nuclear repulsion energy100.151277
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 HF/CEP-121G*
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' 4084 3689 91.97      
2 A' 3268 2953 47.93      
3 A' 3216 2905 11.46      
4 A' 3198 2889 42.39      
5 A' 1978 1787 419.30      
6 A' 1632 1474 12.45      
7 A' 1604 1449 8.06      
8 A' 1568 1417 23.00      
9 A' 1536 1387 47.57      
10 A' 1427 1290 0.81      
11 A' 1298 1173 333.34      
12 A' 1177 1063 40.50      
13 A' 1070 967 1.36      
14 A' 876 791 7.85      
15 A' 660 596 33.53      
16 A' 493 446 21.48      
17 A' 263 238 2.76      
18 A" 3286 2969 54.44      
19 A" 3249 2935 7.03      
20 A" 1624 1467 5.17      
21 A" 1393 1259 0.00      
22 A" 1213 1096 2.12      
23 A" 873 789 19.49      
24 A" 694 627 128.37      
25 A" 556 502 28.96      
26 A" 230 208 0.01      
27 A" 51 46 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21257.4 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 19203.9 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 HF/CEP-121G*
ABC
0.34460 0.12635 0.09567

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.578 0.000
C2 -0.600 -0.817 0.000
C3 0.457 -1.925 0.000
O4 -0.949 1.528 0.000
O5 1.163 0.848 0.000
H6 -1.250 -0.887 0.869
H7 -1.250 -0.887 -0.869
H8 -0.029 -2.897 0.000
H9 1.092 -1.860 -0.877
H10 1.092 -1.860 0.877
H11 -0.513 2.374 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51812.54481.34251.19402.11212.11213.47562.81162.81161.8682
C21.51811.53132.37032.42421.08711.08712.15752.17242.17243.1921
C32.54481.53133.72822.86162.17832.17831.08671.08491.08494.4078
O41.34252.37033.72822.21882.58332.58334.51974.05104.05100.9520
O51.19402.42422.86162.21883.09563.09563.93032.84672.84672.2675
H62.11211.08712.17832.58333.09561.73712.50743.07862.53613.4539
H72.11211.08712.17832.58333.09561.73712.50742.53613.07863.4539
H83.47562.15751.08674.51973.93032.50742.50741.76161.76165.2939
H92.81162.17241.08494.05102.84673.07862.53611.76161.75334.6125
H102.81162.17241.08494.05102.84672.53613.07861.76161.75334.6125
H111.86823.19214.40780.95202.26753.45393.45395.29394.61254.6125

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 113.129 C1 C2 H6 107.170
C1 C2 H7 107.170 C1 O4 H11 107.802
C2 C1 O4 111.762 C2 C1 O5 126.310
C2 C3 H8 109.830 C2 C3 H9 111.124
C2 C3 H10 111.124 C3 C2 H6 111.460
C3 C2 H7 111.460 O4 C1 O5 121.928
H6 C2 H7 106.063 H8 C3 H9 108.427
H8 C3 H10 108.427 H9 C3 H10 107.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.456      
2 C -0.336      
3 C -0.498      
4 O -0.556      
5 O -0.422      
6 H 0.188      
7 H 0.188      
8 H 0.172      
9 H 0.170      
10 H 0.170      
11 H 0.468      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.694 -0.451 0.000 1.753
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.680 -0.562 0.000
y -0.562 -25.242 0.000
z 0.000 0.000 -29.389
Traceless
 xyz
x -8.364 -0.562 0.000
y -0.562 7.292 0.000
z 0.000 0.000 1.072
Polar
3z2-r22.144
x2-y2-10.437
xy-0.562
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.905 -0.039 0.000
y -0.039 6.061 0.000
z 0.000 0.000 4.489


<r2> (average value of r2) Å2
<r2> 103.083
(<r2>)1/2 10.153