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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes NULL 1A'
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-250.830946
Energy at 298.15K-250.834483
HF Energy-250.402423
Nuclear repulsion energy116.346035
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 MP2/3-21G
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' 3226 3079 2.70      
2 A' 3117 2975 0.14      
3 A' 1803 1721 119.20      
4 A' 1573 1501 18.55      
5 A' 1487 1420 31.28      
6 A' 1245 1189 161.65      
7 A' 1042 994 55.13      
8 A' 828 790 18.90      
9 A' 588 562 18.19      
10 A' 392 374 0.65      
11 A" 3184 3039 1.30      
12 A" 1581 1509 10.63      
13 A" 1135 1083 10.05      
14 A" 575 549 4.90      
15 A" 148 141 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 10961.9 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 10463.1 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 MP2/3-21G
ABC
0.34802 0.31526 0.17070

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.192 0.000
C2 1.103 -0.839 0.000
O3 0.061 1.408 0.000
F4 -1.242 -0.454 0.000
H5 2.068 -0.335 0.000
H6 1.006 -1.474 0.885
H7 1.006 -1.474 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 F4 H5 H6 H7
C11.50981.21741.40042.13372.13802.1380
C21.50982.47692.37661.08901.09351.0935
O31.21742.47692.27262.65793.15953.1595
F41.40042.37662.27263.31232.62262.6226
H52.13371.08902.65793.31231.79161.7916
H62.13801.09353.15952.62261.79161.7698
H72.13801.09353.15952.62261.79161.7698

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 109.312 C1 C2 H6 109.382
C1 C2 H7 109.382 C2 C1 O3 130.222
C2 C1 F4 109.447 O3 C1 F4 120.331
H5 C2 H6 110.347 H5 C2 H7 110.347
H6 C2 H7 108.046
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.667     0.801
2 C -0.660     -0.535
3 O -0.408     -0.438
4 F -0.309     -0.301
5 H 0.229     0.146
6 H 0.240     0.164
7 H 0.240     0.164


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.859 -1.974 0.000 2.712
CHELPG        
AIM        
ESP 1.866 -1.961 0.000 2.707


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.335 -1.349 0.000
y -1.349 -25.154 0.000
z 0.000 0.000 -21.281
Traceless
 xyz
x -0.117 -1.349 0.000
y -1.349 -2.846 0.000
z 0.000 0.000 2.963
Polar
3z2-r25.927
x2-y21.819
xy-1.349
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.001 0.115 0.000
y 0.115 3.799 0.000
z 0.000 0.000 2.182


<r2> (average value of r2) Å2
<r2> 70.361
(<r2>)1/2 8.388