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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-268.350017
Energy at 298.15K-268.357082
HF Energy-268.350017
Nuclear repulsion energy179.338781
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 B1B95/6-311G*
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' 3792 3635 39.42      
2 A' 3155 3025 25.45      
3 A' 3080 2952 17.72      
4 A' 3077 2950 18.05      
5 A' 1872 1795 292.09      
6 A' 1518 1455 15.23      
7 A' 1476 1415 18.23      
8 A' 1439 1379 30.52      
9 A' 1423 1364 43.00      
10 A' 1325 1271 0.94      
11 A' 1199 1149 275.15      
12 A' 1103 1058 34.75      
13 A' 1022 980 3.46      
14 A' 834 800 13.29      
15 A' 623 597 22.66      
16 A' 468 449 22.53      
17 A' 232 223 3.15      
18 A" 3159 3029 26.89      
19 A" 3108 2980 4.31      
20 A" 1508 1445 9.40      
21 A" 1293 1239 0.11      
22 A" 1119 1072 0.55      
23 A" 817 784 25.81      
24 A" 689 661 105.48      
25 A" 528 506 23.10      
26 A" 180 172 0.01      
27 A" 28 26 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20033.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 19203.8 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 B1B95/6-311G*
ABC
0.34302 0.12904 0.09708

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.567 0.000
C2 -0.602 -0.807 0.000
C3 0.446 -1.900 0.000
O4 -0.948 1.522 0.000
O5 1.172 0.823 0.000
H6 -1.262 -0.878 0.868
H7 -1.262 -0.878 -0.868
H8 -0.021 -2.884 0.000
H9 1.088 -1.826 -0.876
H10 1.088 -1.826 0.876
H11 -0.489 2.371 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50082.50681.34541.19972.10602.10603.45122.77092.77091.8690
C21.50081.51402.35512.40981.09271.09272.15652.15952.15953.1805
C32.50681.51403.69482.81792.17182.17181.08961.08901.08904.3719
O41.34542.35513.69482.23192.57152.57154.50264.01514.01510.9647
O51.19972.40982.81792.23193.09403.09403.89442.79112.79112.2706
H62.10601.09272.17182.57153.09401.73612.51393.07692.53483.4506
H72.10601.09272.17182.57153.09401.73612.51392.53483.07693.4506
H83.45122.15651.08964.50263.89442.51392.51391.76611.76615.2759
H92.77092.15951.08904.01512.79113.07692.53481.76611.75244.5682
H102.77092.15951.08904.01512.79112.53483.07691.76611.75244.5682
H111.86903.18054.37190.96472.27063.45063.45065.27594.56824.5682

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 112.506 C1 C2 H6 107.544
C1 C2 H7 107.544 C1 O4 H11 106.852
C2 C1 O4 111.560 C2 C1 O5 125.984
C2 C3 H8 110.785 C2 C3 H9 111.066
C2 C3 H10 111.066 C3 C2 H6 111.827
C3 C2 H7 111.827 O4 C1 O5 122.456
H6 C2 H7 105.193 H8 C3 H9 108.320
H8 C3 H10 108.320 H9 C3 H10 107.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.443      
2 C -0.542      
3 C -0.649      
4 O -0.513      
5 O -0.338      
6 H 0.254      
7 H 0.254      
8 H 0.222      
9 H 0.234      
10 H 0.234      
11 H 0.402      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.442 -0.156 0.000 1.450
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.844 -0.328 0.000
y -0.328 -24.997 0.000
z 0.000 0.000 -29.283
Traceless
 xyz
x -7.704 -0.328 0.000
y -0.328 7.067 0.000
z 0.000 0.000 0.637
Polar
3z2-r21.275
x2-y2-9.847
xy-0.328
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.071 -0.137 0.000
y -0.137 6.610 0.000
z 0.000 0.000 4.374


<r2> (average value of r2) Å2
<r2> 122.535
(<r2>)1/2 11.070