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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-268.374634
Energy at 298.15K-268.381771
HF Energy-268.374634
Nuclear repulsion energy178.422747
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 mPW1PW91/aug-cc-pVDZ
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' 3803 3645 66.30      
2 A' 3161 3029 18.52      
3 A' 3076 2948 8.04      
4 A' 3075 2947 23.10      
5 A' 1841 1764 297.63      
6 A' 1480 1418 15.61      
7 A' 1440 1380 15.58      
8 A' 1420 1361 39.62      
9 A' 1397 1339 31.43      
10 A' 1305 1250 0.44      
11 A' 1181 1132 240.38      
12 A' 1099 1053 52.60      
13 A' 1019 976 3.52      
14 A' 831 796 9.16      
15 A' 615 589 18.94      
16 A' 469 449 20.56      
17 A' 247 236 3.15      
18 A" 3166 3034 19.34      
19 A" 3114 2984 2.65      
20 A" 1471 1410 7.55      
21 A" 1273 1220 0.16      
22 A" 1101 1055 0.35      
23 A" 807 773 16.24      
24 A" 658 631 85.77      
25 A" 525 503 20.23      
26 A" 205 196 0.02      
27 A" 42 40 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19909.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 19079.6 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 mPW1PW91/aug-cc-pVDZ
ABC
0.34008 0.12733 0.09593

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.595 -0.811 0.000
C3 0.447 -1.916 0.000
O4 -0.957 1.526 0.000
O5 1.177 0.839 0.000
H6 -1.258 -0.878 0.874
H7 -1.258 -0.878 -0.874
H8 -0.041 -2.897 0.000
H9 1.091 -1.849 -0.884
H10 1.091 -1.849 0.884
H11 -0.495 2.376 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50362.52541.35291.20732.10772.10773.46712.79662.79661.8729
C21.50361.51862.36492.42141.09901.09902.15822.16802.16803.1886
C32.52541.51863.71712.85002.17872.17871.09621.09551.09554.3940
O41.35292.36493.71712.24162.57572.57574.51684.04534.04530.9673
O51.20732.42142.85002.24163.10493.10493.92992.83102.83102.2710
H62.10771.09902.17872.57573.10491.74832.51393.09012.54133.4547
H72.10771.09902.17872.57573.10491.74832.51392.54133.09013.4547
H83.46712.15821.09624.51683.92992.51392.51391.77821.77825.2926
H92.79662.16801.09554.04532.83103.09012.54131.77821.76764.5985
H102.79662.16801.09554.04532.83102.54133.09011.77821.76764.5985
H111.87293.18864.39400.96732.27103.45473.45475.29264.59854.5985

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 113.356 C1 C2 H6 107.139
C1 C2 H7 107.139 C1 O4 H11 106.464
C2 C1 O4 111.662 C2 C1 O5 126.216
C2 C3 H8 110.209 C2 C3 H9 111.032
C2 C3 H10 111.032 C3 C2 H6 111.677
C3 C2 H7 111.677 O4 C1 O5 122.123
H6 C2 H7 105.389 H8 C3 H9 108.453
H8 C3 H10 108.453 H9 C3 H10 107.562
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.624      
2 C 0.249      
3 C 0.482      
4 O -0.478      
5 O -0.552      
6 H -0.092      
7 H -0.092      
8 H -0.116      
9 H -0.102      
10 H -0.102      
11 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.610 -0.493 0.000 1.684
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.067 -0.617 0.000
y -0.617 -25.623 0.000
z 0.000 0.000 -29.573
Traceless
 xyz
x -7.469 -0.617 0.000
y -0.617 6.697 0.000
z 0.000 0.000 0.772
Polar
3z2-r21.544
x2-y2-9.443
xy-0.617
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.126 -0.172 0.000
y -0.172 7.812 0.000
z 0.000 0.000 5.375


<r2> (average value of r2) Å2
<r2> 124.000
(<r2>)1/2 11.136