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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-52.460521
Energy at 298.15K-52.467514
HF Energy-52.460521
Nuclear repulsion energy97.830978
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/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3619 3527 24.01      
2 A' 3094 3015 36.74      
3 A' 3015 2938 6.41      
4 A' 3006 2929 38.07      
5 A' 1689 1646 227.10      
6 A' 1523 1484 11.46      
7 A' 1491 1453 27.16      
8 A' 1441 1405 8.79      
9 A' 1397 1361 38.05      
10 A' 1280 1248 11.99      
11 A' 1130 1101 113.49      
12 A' 1063 1036 194.95      
13 A' 1016 990 27.23      
14 A' 795 774 2.70      
15 A' 582 567 16.27      
16 A' 446 435 28.72      
17 A' 242 236 2.63      
18 A" 3103 3024 41.98      
19 A" 3054 2976 5.03      
20 A" 1516 1477 9.17      
21 A" 1282 1249 0.00      
22 A" 1126 1097 0.03      
23 A" 809 789 14.24      
24 A" 634 618 146.58      
25 A" 511 498 27.16      
26 A" 194 189 0.03      
27 A" 16 15 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 19535.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 19037.7 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/CEP-121G
ABC
0.32238 0.12252 0.09180

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.567 0.000
C2 -0.602 -0.834 0.000
C3 0.468 -1.948 0.000
O4 -0.998 1.552 0.000
O5 1.211 0.866 0.000
H6 -1.261 -0.909 0.876
H7 -1.261 -0.909 -0.876
H8 -0.016 -2.932 0.000
H9 1.113 -1.877 -0.884
H10 1.113 -1.877 0.884
H11 -0.591 2.448 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.52432.55741.40251.24752.12952.12953.49872.82662.82661.9725
C21.52431.54442.41852.48541.09911.09912.17842.19262.19263.2823
C32.55741.54443.79422.91042.19922.19921.09711.09601.09604.5218
O41.40252.41853.79422.31292.62542.62544.59024.12214.12210.9845
O51.24752.48542.91042.31293.16693.16693.99172.88392.88392.3980
H62.12951.09912.19922.62543.16691.75292.53193.10932.56313.5338
H72.12951.09912.19922.62543.16691.75292.53192.56313.10933.5338
H83.49872.17841.09714.59023.99172.53192.53191.77991.77995.4111
H92.82662.19261.09604.12212.88393.10932.56311.77991.76774.7320
H102.82662.19261.09604.12212.88392.56313.10931.77991.76774.7320
H111.97253.28234.52180.98452.39803.53383.53385.41114.73204.7320

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 112.895 C1 C2 H6 107.422
C1 C2 H7 107.422 C1 O4 H11 110.219
C2 C1 O4 111.377 C2 C1 O5 127.157
C2 C3 H8 109.956 C2 C3 H9 111.146
C2 C3 H10 111.146 C3 C2 H6 111.481
C3 C2 H7 111.481 O4 C1 O5 121.466
H6 C2 H7 105.764 H8 C3 H9 108.500
H8 C3 H10 108.500 H9 C3 H10 107.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.078      
2 C -0.295      
3 C -0.468      
4 O -0.368      
5 O -0.159      
6 H 0.181      
7 H 0.181      
8 H 0.152      
9 H 0.163      
10 H 0.163      
11 H 0.373      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.543 -0.564 0.000 1.643
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.566 -0.633 0.000
y -0.633 -25.013 0.000
z 0.000 0.000 -29.832
Traceless
 xyz
x -9.144 -0.633 0.000
y -0.633 8.186 0.000
z 0.000 0.000 0.957
Polar
3z2-r21.915
x2-y2-11.554
xy-0.633
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.522 -0.114 0.000
y -0.114 6.915 0.000
z 0.000 0.000 4.593


<r2> (average value of r2) Å2
<r2> 106.716
(<r2>)1/2 10.330