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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-268.305959
Energy at 298.15K-268.312967
HF Energy-268.305959
Nuclear repulsion energy178.831297
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 B1B95/6-31+G**
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' 3821 3655 68.99      
2 A' 3170 3032 18.42      
3 A' 3087 2953 18.59      
4 A' 3083 2949 13.21      
5 A' 1860 1780 318.79      
6 A' 1503 1438 14.51      
7 A' 1463 1399 16.47      
8 A' 1432 1370 40.84      
9 A' 1414 1352 49.16      
10 A' 1304 1247 7.16      
11 A' 1186 1135 251.64      
12 A' 1100 1052 38.48      
13 A' 1019 975 3.85      
14 A' 832 796 11.67      
15 A' 615 588 20.65      
16 A' 466 446 22.22      
17 A' 230 220 3.34      
18 A" 3174 3037 18.29      
19 A" 3122 2986 2.40      
20 A" 1492 1427 8.89      
21 A" 1280 1224 0.05      
22 A" 1107 1059 0.35      
23 A" 812 777 19.75      
24 A" 662 633 97.26      
25 A" 521 499 25.88      
26 A" 175 167 0.01      
27 A" 22 21 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19975.4 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 19108.4 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 B1B95/6-31+G**
ABC
0.34116 0.12826 0.09651

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.567 0.000
C2 -0.605 -0.807 0.000
C3 0.438 -1.908 0.000
O4 -0.944 1.531 0.000
O5 1.180 0.822 0.000
H6 -1.265 -0.873 0.871
H7 -1.265 -0.873 -0.871
H8 -0.042 -2.888 0.000
H9 1.080 -1.838 -0.879
H10 1.080 -1.838 0.879
H11 -0.478 2.379 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50192.51391.34861.20762.10522.10523.45532.77912.77911.8739
C21.50191.51662.36242.41731.09421.09422.15542.16202.16203.1889
C32.51391.51663.70612.82952.17482.17481.09091.09051.09054.3841
O41.34862.36243.70612.23912.57652.57654.50964.02684.02680.9675
O51.20762.41732.82952.23913.10013.10013.90622.80312.80312.2749
H62.10521.09422.17482.57653.10011.74102.51273.08062.53593.4571
H72.10521.09422.17482.57653.10011.74102.51272.53593.08063.4571
H83.45532.15541.09094.50963.90622.51272.51271.77021.77025.2849
H92.77912.16201.09054.02682.80313.08062.53591.77021.75724.5807
H102.77912.16201.09054.02682.80312.53593.08061.77021.75724.5807
H111.87393.18894.38410.96752.27493.45713.45715.28494.58074.5807

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 112.777 C1 C2 H6 107.321
C1 C2 H7 107.321 C1 O4 H11 106.852
C2 C1 O4 111.834 C2 C1 O5 125.948
C2 C3 H8 110.437 C2 C3 H9 110.990
C2 C3 H10 110.990 C3 C2 H6 111.794
C3 C2 H7 111.794 O4 C1 O5 122.218
H6 C2 H7 105.415 H8 C3 H9 108.483
H8 C3 H10 108.483 H9 C3 H10 107.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.401      
2 C -0.202      
3 C -0.555      
4 O -0.445      
5 O -0.463      
6 H 0.191      
7 H 0.191      
8 H 0.158      
9 H 0.177      
10 H 0.177      
11 H 0.369      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.592 -0.412 0.000 1.645
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.310 -0.460 0.000
y -0.460 -25.338 0.000
z 0.000 0.000 -29.629
Traceless
 xyz
x -7.826 -0.460 0.000
y -0.460 7.131 0.000
z 0.000 0.000 0.696
Polar
3z2-r21.391
x2-y2-9.971
xy-0.460
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.764 -0.108 0.000
y -0.108 7.049 0.000
z 0.000 0.000 4.859


<r2> (average value of r2) Å2
<r2> 123.357
(<r2>)1/2 11.107