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

using model chemistry: B2PLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/STO-3G
 hartrees
Energy at 0K-264.464782
Energy at 298.15K 
HF Energy-264.367096
Nuclear repulsion energy172.877785
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 B2PLYP/STO-3G
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' 3768 3768 19.81      
2 A' 3533 3533 0.87      
3 A' 3379 3379 1.66      
4 A' 3359 3359 1.69      
5 A' 1872 1872 56.45      
6 A' 1712 1712 3.60      
7 A' 1674 1674 2.35      
8 A' 1599 1599 0.87      
9 A' 1529 1529 15.72      
10 A' 1458 1458 5.00      
11 A' 1253 1253 108.25      
12 A' 1169 1169 42.23      
13 A' 1093 1093 1.78      
14 A' 843 843 5.96      
15 A' 570 570 11.68      
16 A' 427 427 15.48      
17 A' 223 223 0.71      
18 A" 3534 3534 1.18      
19 A" 3483 3483 0.18      
20 A" 1706 1706 2.50      
21 A" 1395 1395 0.19      
22 A" 1191 1191 0.01      
23 A" 864 864 6.37      
24 A" 645 645 69.18      
25 A" 512 512 3.62      
26 A" 189 189 0.01      
27 A" 14i 14i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21483.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21483.3 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 B2PLYP/STO-3G
ABC
0.31206 0.12096 0.09014

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.578 0.000
C2 -0.607 -0.863 0.000
C3 0.502 -1.949 0.000
O4 -1.045 1.542 0.000
O5 1.210 0.905 0.000
H6 -1.253 -0.970 0.889
H7 -1.253 -0.970 -0.889
H8 0.054 -2.953 0.000
H9 1.140 -1.850 -0.891
H10 1.140 -1.850 0.891
H11 -0.518 2.420 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.56412.57691.42121.25292.18102.18103.53202.82622.82621.9132
C21.56411.55272.44462.53491.10391.10392.19212.19512.19513.2842
C32.57691.55273.81862.94002.19822.19821.09981.09961.09964.4868
O41.42122.44463.81862.34262.67242.67244.62754.13134.13131.0235
O51.25292.53492.94002.34263.22013.22014.02732.89552.89552.2984
H62.18101.10392.19822.67243.22011.77722.53633.10922.54993.5804
H72.18101.10392.19822.67243.22011.77722.53632.54993.10923.5804
H83.53202.19211.09984.62754.02732.53632.53631.78621.78625.4035
H92.82622.19511.09964.13132.89553.10922.54991.78621.78114.6661
H102.82622.19511.09964.13132.89552.54993.10921.78621.78114.6661
H111.91323.28424.48681.02352.29843.58043.58045.40354.66614.6661

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 111.537 C1 C2 H6 108.433
C1 C2 H7 108.433 C1 O4 H11 101.761
C2 C1 O4 109.850 C2 C1 O5 127.938
C2 C3 H8 110.301 C2 C3 H9 110.544
C2 C3 H10 110.544 C3 C2 H6 110.542
C3 C2 H7 110.542 O4 C1 O5 122.212
H6 C2 H7 107.217 H8 C3 H9 108.607
H8 C3 H10 108.607 H9 C3 H10 108.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.215      
2 C -0.136      
3 C -0.197      
4 O -0.229      
5 O -0.218      
6 H 0.079      
7 H 0.079      
8 H 0.070      
9 H 0.074      
10 H 0.074      
11 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.671 -0.061 0.000 0.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.401 0.004 0.000
y 0.004 -24.222 0.000
z 0.000 0.000 -26.926
Traceless
 xyz
x -5.827 0.004 0.000
y 0.004 4.942 0.000
z 0.000 0.000 0.885
Polar
3z2-r21.770
x2-y2-7.179
xy0.004
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.426 -0.053 0.000
y -0.053 3.913 0.000
z 0.000 0.000 1.929


<r2> (average value of r2) Å2
<r2> 128.667
(<r2>)1/2 11.343