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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-177.108970
Energy at 298.15K-177.114637
Nuclear repulsion energy78.974051
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 HF/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' 3281 2962 30.26      
2 A' 3244 2928 29.42      
3 A' 3215 2902 12.22      
4 A' 1707 1541 0.33      
5 A' 1673 1510 4.74      
6 A' 1582 1428 12.69      
7 A' 1565 1412 22.84      
8 A' 1242 1121 31.88      
9 A' 1130 1020 47.13      
10 A' 953 860 7.23      
11 A' 409 369 8.12      
12 A" 3298 2977 63.50      
13 A" 3270 2952 2.35      
14 A" 1655 1494 5.33      
15 A" 1434 1294 0.34      
16 A" 1297 1171 7.12      
17 A" 908 820 0.89      
18 A" 260 234 1.08      

Unscaled Zero Point Vibrational Energy (zpe) 16061.7 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 14497.3 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 HF/3-21G*
ABC
1.19413 0.31179 0.27207

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.571 0.000
C2 1.131 -0.446 0.000
F3 -1.231 -0.116 0.000
H4 0.038 1.196 0.879
H5 0.038 1.196 -0.879
H6 2.089 0.058 0.000
H7 1.065 -1.076 0.878
H8 1.065 -1.076 -0.878

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.52071.40971.07961.07962.15122.14822.1482
C21.52072.38462.15962.15961.08291.08231.0823
F31.40972.38462.02652.02653.32472.63852.6385
H41.07962.15962.02651.75822.50502.49293.0500
H51.07962.15962.02651.75822.50503.05002.4929
H62.15121.08293.32472.50502.50501.76211.7621
H72.14821.08232.63852.49293.05001.76211.7561
H82.14821.08232.63853.05002.49291.76211.7561

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.297 C1 C2 H7 110.090
C1 C2 H8 110.090 C2 C1 F3 108.868
C2 C1 H4 111.166 C2 C1 H5 111.166
F3 C1 H4 108.263 F3 C1 H5 108.263
H4 C1 H5 109.026 H6 C2 H7 108.942
H6 C2 H8 108.942 H7 C2 H8 108.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.006      
2 C -0.654      
3 F -0.411      
4 H 0.201      
5 H 0.201      
6 H 0.204      
7 H 0.227      
8 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.073 0.955 0.000 2.282
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.229 -0.342 0.000
y -0.342 -17.845 0.000
z 0.000 0.000 -18.097
Traceless
 xyz
x -3.258 -0.342 0.000
y -0.342 1.818 0.000
z 0.000 0.000 1.440
Polar
3z2-r22.880
x2-y2-3.384
xy-0.342
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.061 -0.017 0.000
y -0.017 3.048 0.000
z 0.000 0.000 2.967


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000