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

using model chemistry: B3LYP/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 B3LYP/STO-3G
 hartrees
Energy at 0K-264.860421
Energy at 298.15K 
HF Energy-264.860421
Nuclear repulsion energy172.651074
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 B3LYP/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' 3686 3289 20.00      
2 A' 3486 3111 0.70      
3 A' 3332 2973 2.51      
4 A' 3318 2961 1.34      
5 A' 1882 1679 62.15      
6 A' 1686 1504 4.89      
7 A' 1645 1468 3.54      
8 A' 1573 1404 1.22      
9 A' 1496 1335 14.25      
10 A' 1433 1279 3.60      
11 A' 1229 1097 103.89      
12 A' 1146 1023 44.20      
13 A' 1076 961 2.02      
14 A' 826 737 7.22      
15 A' 563 503 10.86      
16 A' 421 376 15.20      
17 A' 221 197 0.89      
18 A" 3488 3113 0.98      
19 A" 3433 3063 0.09      
20 A" 1679 1498 3.36      
21 A" 1372 1224 0.28      
22 A" 1171 1045 0.00      
23 A" 851 760 7.71      
24 A" 643 574 67.43      
25 A" 509 454 4.64      
26 A" 185 165 0.01      
27 A" 32i 29i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21157.7 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 18881.1 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 B3LYP/STO-3G
ABC
0.31130 0.12057 0.08987

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.580 0.000
C2 -0.601 -0.867 0.000
C3 0.513 -1.950 0.000
O4 -1.057 1.537 0.000
O5 1.206 0.914 0.000
H6 -1.248 -0.976 0.889
H7 -1.248 -0.976 -0.889
H8 0.066 -2.956 0.000
H9 1.150 -1.848 -0.891
H10 1.150 -1.848 0.891
H11 -0.536 2.425 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.56662.58131.42611.25122.18322.18323.53632.83072.83071.9211
C21.56661.55332.44722.53701.10511.10512.19262.19602.19603.2926
C32.58131.55333.82422.94702.20002.20001.10071.10041.10044.4987
O41.42612.44723.82422.34662.67222.67224.63134.13844.13841.0296
O51.25122.53702.94702.34663.22203.22204.03472.90352.90352.3048
H62.18321.10512.20002.67223.22201.77862.53743.11152.55163.5862
H72.18321.10512.20002.67223.22201.77862.53742.55163.11153.5862
H83.53632.19261.10074.63134.03472.53742.53741.78791.78795.4142
H92.83072.19601.10044.13842.90353.11152.55161.78791.78274.6792
H102.83072.19601.10044.13842.90352.55163.11151.78791.78274.6792
H111.92113.29264.49871.02962.30483.58623.58625.41424.67924.6792

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 111.656 C1 C2 H6 108.365
C1 C2 H7 108.365 C1 O4 H11 101.731
C2 C1 O4 109.625 C2 C1 O5 128.060
C2 C3 H8 110.248 C2 C3 H9 110.528
C2 C3 H10 110.528 C3 C2 H6 110.570
C3 C2 H7 110.570 O4 C1 O5 122.315
H6 C2 H7 107.168 H8 C3 H9 108.636
H8 C3 H10 108.636 H9 C3 H10 108.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.205      
2 C -0.149      
3 C -0.216      
4 O -0.222      
5 O -0.223      
6 H 0.086      
7 H 0.086      
8 H 0.077      
9 H 0.080      
10 H 0.080      
11 H 0.194      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.763 -0.055 0.000 0.765
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.221 -0.161 0.000
y -0.161 -23.890 0.000
z 0.000 0.000 -26.850
Traceless
 xyz
x -5.851 -0.161 0.000
y -0.161 5.146 0.000
z 0.000 0.000 0.705
Polar
3z2-r21.410
x2-y2-7.331
xy-0.161
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.455 -0.046 0.000
y -0.046 4.022 0.000
z 0.000 0.000 1.953


<r2> (average value of r2) Å2
<r2> 128.880
(<r2>)1/2 11.353