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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-178.987694
Energy at 298.15K-178.993281
Nuclear repulsion energy79.400381
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 B1B95/6-31G**
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' 3159 3016 22.44      
2 A' 3074 2935 8.99      
3 A' 3054 2916 48.24      
4 A' 1536 1467 0.54      
5 A' 1508 1440 1.63      
6 A' 1444 1378 34.72      
7 A' 1404 1340 1.83      
8 A' 1151 1099 57.61      
9 A' 1101 1051 41.10      
10 A' 910 869 8.33      
11 A' 405 386 5.54      
12 A" 3168 3025 28.82      
13 A" 3099 2959 38.45      
14 A" 1490 1423 4.63      
15 A" 1305 1246 0.02      
16 A" 1196 1142 5.17      
17 A" 810 774 0.89      
18 A" 268 256 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 15040.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 14360.7 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 B1B95/6-31G**
ABC
1.21550 0.31502 0.27612

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.555 0.000
C2 1.117 -0.457 0.000
F3 -1.222 -0.093 0.000
H4 0.046 1.197 0.887
H5 0.046 1.197 -0.887
H6 2.088 0.045 0.000
H7 1.059 -1.093 0.885
H8 1.059 -1.093 -0.885

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50791.38361.09561.09562.14912.15012.1501
C21.50792.36732.16122.16121.09271.09151.0915
F31.38362.36732.01472.01473.31252.64292.6429
H41.09562.16122.01471.77402.50652.50413.0678
H51.09562.16122.01471.77402.50653.06782.5041
H62.14911.09273.31252.50652.50651.77131.7713
H72.15011.09152.64292.50413.06781.77131.7704
H82.15011.09152.64293.06782.50411.77131.7704

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.442 C1 C2 H7 110.591
C1 C2 H8 110.591 C2 C1 F3 109.833
C2 C1 H4 111.237 C2 C1 H5 111.237
F3 C1 H4 108.151 F3 C1 H5 108.151
H4 C1 H5 108.123 H6 C2 H7 108.379
H6 C2 H8 108.379 H7 C2 H8 108.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.105      
2 C -0.398      
3 F -0.323      
4 H 0.107      
5 H 0.107      
6 H 0.122      
7 H 0.140      
8 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.595 0.623 0.000 1.713
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.076 -0.165 0.000
y -0.165 -17.778 0.000
z 0.000 0.000 -17.902
Traceless
 xyz
x -2.236 -0.165 0.000
y -0.165 1.210 0.000
z 0.000 0.000 1.025
Polar
3z2-r22.051
x2-y2-2.298
xy-0.165
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.540 -0.087 0.000
y -0.087 3.531 0.000
z 0.000 0.000 3.407


<r2> (average value of r2) Å2
<r2> 50.723
(<r2>)1/2 7.122