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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-268.330285
Energy at 298.15K-268.337220
HF Energy-268.330285
Nuclear repulsion energy176.491698
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 BLYP/6-31G(2df,p)
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' 3591 3571 25.68      
2 A' 3046 3030 22.95      
3 A' 2980 2963 20.30      
4 A' 2962 2946 13.59      
5 A' 1760 1750 210.62      
6 A' 1464 1456 6.77      
7 A' 1420 1412 11.10      
8 A' 1379 1371 3.16      
9 A' 1350 1343 24.17      
10 A' 1274 1267 1.95      
11 A' 1116 1110 181.36      
12 A' 1039 1033 98.87      
13 A' 981 975 0.52      
14 A' 781 777 8.97      
15 A' 586 583 15.23      
16 A' 448 445 17.73      
17 A' 242 240 2.59      
18 A" 3051 3034 22.78      
19 A" 2987 2971 6.11      
20 A" 1458 1450 4.18      
21 A" 1243 1236 0.02      
22 A" 1075 1069 0.15      
23 A" 786 782 13.90      
24 A" 653 649 73.96      
25 A" 506 503 17.02      
26 A" 198 196 0.01      
27 A" 17 17 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19195.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 19089.5 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 BLYP/6-31G(2df,p)
ABC
0.33129 0.12477 0.09379

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.578 0.000
C2 -0.597 -0.825 0.000
C3 0.471 -1.931 0.000
O4 -0.988 1.533 0.000
O5 1.184 0.857 0.000
H6 -1.263 -0.905 0.877
H7 -1.263 -0.905 -0.877
H8 -0.004 -2.923 0.000
H9 1.118 -1.855 -0.886
H10 1.118 -1.855 0.886
H11 -0.517 2.392 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.52482.55281.37431.21672.13582.13583.50122.82002.82001.8869
C21.52481.53742.39032.45021.10381.10382.18032.18772.18773.2186
C32.55281.53743.75882.87822.19752.19751.10021.09971.09974.4351
O41.37432.39033.75882.27492.60502.60504.56364.08624.08620.9801
O51.21672.45022.87822.27493.14043.14043.96312.85402.85402.2916
H62.13581.10382.19752.60503.14041.75312.53533.11102.56353.4923
H72.13581.10382.19752.60503.14041.75312.53532.56353.11103.4923
H83.50122.18031.10024.56363.96312.53532.53531.78501.78505.3405
H92.82002.18771.09974.08622.85403.11102.56351.78501.77214.6366
H102.82002.18771.09974.08622.85402.56353.11101.78501.77214.6366
H111.88693.21864.43510.98012.29163.49233.49235.34054.63664.6366

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 112.948 C1 C2 H6 107.612
C1 C2 H7 107.612 C1 O4 H11 105.311
C2 C1 O4 110.974 C2 C1 O5 126.333
C2 C3 H8 110.401 C2 C3 H9 111.020
C2 C3 H10 111.020 C3 C2 H6 111.556
C3 C2 H7 111.556 O4 C1 O5 122.693
H6 C2 H7 105.144 H8 C3 H9 108.462
H8 C3 H10 108.462 H9 C3 H10 107.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.369      
2 C -0.255      
3 C -0.330      
4 O -0.331      
5 O -0.301      
6 H 0.118      
7 H 0.118      
8 H 0.097      
9 H 0.118      
10 H 0.118      
11 H 0.277      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.387 -0.256 0.000 1.410
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.964 -0.623 0.000
y -0.623 -25.362 0.000
z 0.000 0.000 -29.076
Traceless
 xyz
x -6.746 -0.623 0.000
y -0.623 6.158 0.000
z 0.000 0.000 0.588
Polar
3z2-r21.175
x2-y2-8.602
xy-0.623
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.196 -0.167 0.000
y -0.167 7.195 0.000
z 0.000 0.000 4.565


<r2> (average value of r2) Å2
<r2> 125.899
(<r2>)1/2 11.220