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All results from a given calculation for CH3COF (Acetyl fluoride)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes NULL 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-251.640483
Energy at 298.15K-251.644025
Nuclear repulsion energy117.615105
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 mPW1PW91/3-21G
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' 3223 3077 1.44      
2 A' 3100 2959 0.11      
3 A' 1899 1813 191.49      
4 A' 1529 1460 19.69      
5 A' 1456 1390 52.89      
6 A' 1256 1199 190.21      
7 A' 1038 991 31.10      
8 A' 858 819 14.47      
9 A' 594 567 19.14      
10 A' 393 375 0.20      
11 A" 3163 3019 0.29      
12 A" 1540 1471 14.72      
13 A" 1114 1064 16.43      
14 A" 583 556 3.15      
15 A" 144 137 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 10944.6 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 10447.7 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 mPW1PW91/3-21G
ABC
0.35701 0.32157 0.17467

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.189 0.000
C2 1.082 -0.840 0.000
O3 0.074 1.389 0.000
F4 -1.233 -0.432 0.000
H5 2.055 -0.354 0.000
H6 0.978 -1.480 0.881
H7 0.978 -1.480 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 F4 H5 H6 H7
C11.49381.20231.38082.12612.12562.1256
C21.49382.44692.35111.08781.09391.0939
O31.20232.44692.24202.63923.13433.1343
F41.38082.35112.24203.28942.60022.6002
H52.12611.08782.63923.28941.79041.7904
H62.12561.09393.13432.60021.79041.7628
H72.12561.09393.13432.60021.79041.7628

picture of Acetyl fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 109.889 C1 C2 H6 109.481
C1 C2 H7 109.481 C2 C1 O3 130.032
C2 C1 F4 109.681 O3 C1 F4 120.286
H5 C2 H6 110.295 H5 C2 H7 110.295
H6 C2 H7 107.357
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.667      
2 C -0.747      
3 O -0.444      
4 F -0.286      
5 H 0.263      
6 H 0.273      
7 H 0.273      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.764 -2.316 0.000 2.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.542 -1.408 0.000
y -1.408 -24.777 0.000
z 0.000 0.000 -20.926
Traceless
 xyz
x 0.309 -1.408 0.000
y -1.408 -3.043 0.000
z 0.000 0.000 2.734
Polar
3z2-r25.468
x2-y22.235
xy-1.408
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 68.733
(<r2>)1/2 8.291