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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-268.282559
Energy at 298.15K-268.289659
HF Energy-268.282559
Nuclear repulsion energy178.958271
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 B1B95/6-31G**
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' 3753 3584 53.43      
2 A' 3178 3035 19.48      
3 A' 3097 2957 18.01      
4 A' 3089 2949 11.57      
5 A' 1889 1804 265.55      
6 A' 1528 1459 13.33      
7 A' 1489 1422 14.67      
8 A' 1451 1386 35.99      
9 A' 1435 1370 41.80      
10 A' 1329 1269 1.63      
11 A' 1204 1149 252.06      
12 A' 1109 1059 31.48      
13 A' 1026 979 3.66      
14 A' 837 799 12.82      
15 A' 618 590 23.05      
16 A' 467 446 22.29      
17 A' 238 227 3.20      
18 A" 3183 3039 18.74      
19 A" 3126 2985 3.92      
20 A" 1520 1452 7.08      
21 A" 1293 1234 0.07      
22 A" 1120 1069 0.55      
23 A" 819 782 23.49      
24 A" 683 652 99.15      
25 A" 524 500 20.89      
26 A" 192 184 0.01      
27 A" 37 35 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20116.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 19207.2 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 B1B95/6-31G**
ABC
0.34098 0.12882 0.09681

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.567 0.000
C2 -0.611 -0.807 0.000
C3 0.438 -1.902 0.000
O4 -0.942 1.531 0.000
O5 1.180 0.814 0.000
H6 -1.271 -0.876 0.871
H7 -1.271 -0.876 -0.871
H8 -0.033 -2.887 0.000
H9 1.080 -1.825 -0.879
H10 1.080 -1.825 0.879
H11 -0.459 2.374 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50352.50761.34791.20592.11062.11063.45392.76762.76761.8645
C21.50351.51652.36162.41591.09481.09482.15872.16052.16053.1846
C32.50761.51653.70032.81592.17502.17501.09161.09111.09114.3692
O41.34792.36163.70032.23982.58112.58114.51074.01554.01550.9711
O51.20592.41592.81592.23983.10193.10193.89492.78342.78342.2628
H62.11061.09482.17502.58113.10191.74212.51673.08022.53493.4612
H72.11061.09482.17502.58113.10191.74212.51672.53493.08023.4612
H83.45392.15871.09164.51073.89492.51672.51671.77181.77185.2781
H92.76762.16051.09114.01552.78343.08022.53491.77181.75774.5576
H102.76762.16051.09114.01552.78342.53493.08021.77181.75774.5576
H111.86453.18464.36920.97112.26283.46123.46125.27814.55764.5576

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 112.263 C1 C2 H6 107.602
C1 C2 H7 107.602 C1 O4 H11 105.888
C2 C1 O4 111.718 C2 C1 O5 125.807
C2 C3 H8 110.672 C2 C3 H9 110.847
C2 C3 H10 110.847 C3 C2 H6 111.791
C3 C2 H7 111.791 O4 C1 O5 122.475
H6 C2 H7 105.428 H8 C3 H9 108.528
H8 C3 H10 108.528 H9 C3 H10 107.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.582      
2 C -0.399      
3 C -0.488      
4 O -0.582      
5 O -0.463      
6 H 0.199      
7 H 0.199      
8 H 0.164      
9 H 0.182      
10 H 0.182      
11 H 0.422      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.450 -0.185 0.000 1.462
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.156 -0.341 0.000
y -0.341 -24.677 0.000
z 0.000 0.000 -28.910
Traceless
 xyz
x -7.362 -0.341 0.000
y -0.341 6.856 0.000
z 0.000 0.000 0.506
Polar
3z2-r21.012
x2-y2-9.479
xy-0.341
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.774 -0.079 0.000
y -0.079 6.277 0.000
z 0.000 0.000 4.123


<r2> (average value of r2) Å2
<r2> 122.504
(<r2>)1/2 11.068