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

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-268.436205
Energy at 298.15K-268.443361
HF Energy-268.436205
Nuclear repulsion energy179.129933
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 mPW1PW91/cc-pVTZ
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' 3808 3652 62.84      
2 A' 3145 3016 18.14      
3 A' 3070 2945 18.35      
4 A' 3065 2940 10.59      
5 A' 1854 1778 284.51      
6 A' 1503 1441 13.11      
7 A' 1459 1399 16.76      
8 A' 1428 1370 28.18      
9 A' 1418 1360 42.67      
10 A' 1315 1262 1.81      
11 A' 1184 1135 237.63      
12 A' 1099 1054 55.78      
13 A' 1022 980 2.93      
14 A' 831 797 12.30      
15 A' 621 595 19.72      
16 A' 471 452 19.57      
17 A' 250 240 2.99      
18 A" 3149 3020 18.41      
19 A" 3095 2969 2.57      
20 A" 1494 1433 7.66      
21 A" 1286 1234 0.17      
22 A" 1112 1067 0.43      
23 A" 817 783 18.99      
24 A" 662 635 80.02      
25 A" 524 503 24.54      
26 A" 204 195 0.01      
27 A" 43 41 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19962.5 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 19148.0 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 mPW1PW91/cc-pVTZ
ABC
0.34280 0.12830 0.09665

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.594 -0.809 0.000
C3 0.449 -1.908 0.000
O4 -0.955 1.520 0.000
O5 1.171 0.834 0.000
H6 -1.254 -0.878 0.868
H7 -1.254 -0.878 -0.868
H8 -0.029 -2.886 0.000
H9 1.090 -1.838 -0.877
H10 1.090 -1.838 0.877
H11 -0.495 2.368 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50152.51751.34741.20042.10272.10273.45602.78442.78441.8653
C21.50151.51462.35722.41201.09251.09252.15262.15952.15953.1789
C32.51751.51463.70402.83542.17102.17101.08921.08861.08864.3785
O41.34742.35723.70402.23372.56782.56784.50274.02824.02820.9647
O51.20042.41202.83542.23373.09283.09283.90942.81372.81372.2643
H62.10271.09252.17102.56783.09281.73652.50763.07582.53273.4447
H72.10271.09252.17102.56783.09281.73652.50762.53273.07583.4447
H83.45602.15261.08924.50273.90942.50762.50761.76641.76645.2750
H92.78442.15951.08864.02822.81373.07582.53271.76641.75424.5794
H102.78442.15951.08864.02822.81372.53273.07581.76641.75424.5794
H111.86533.17894.37850.96472.26433.44473.44475.27504.57944.5794

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 113.157 C1 C2 H6 107.254
C1 C2 H7 107.254 C1 O4 H11 106.388
C2 C1 O4 111.550 C2 C1 O5 126.062
C2 C3 H8 110.455 C2 C3 H9 111.045
C2 C3 H10 111.045 C3 C2 H6 111.732
C3 C2 H7 111.732 O4 C1 O5 122.388
H6 C2 H7 105.257 H8 C3 H9 108.410
H8 C3 H10 108.410 H9 C3 H10 107.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.290      
2 C -0.181      
3 C -0.253      
4 O -0.251      
5 O -0.306      
6 H 0.107      
7 H 0.107      
8 H 0.087      
9 H 0.097      
10 H 0.097      
11 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.564 -0.336 0.000 1.600
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.509 -0.597 0.000
y -0.597 -25.255 0.000
z 0.000 0.000 -29.268
Traceless
 xyz
x -7.247 -0.597 0.000
y -0.597 6.634 0.000
z 0.000 0.000 0.614
Polar
3z2-r21.227
x2-y2-9.254
xy-0.597
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.521 -0.170 0.000
y -0.170 7.225 0.000
z 0.000 0.000 4.875


<r2> (average value of r2) Å2
<r2> 122.939
(<r2>)1/2 11.088