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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-178.945418
Energy at 298.15K-178.950991
Nuclear repulsion energy78.365930
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' 3165 3019 24.15      
2 A' 3090 2947 32.12      
3 A' 3078 2936 15.11      
4 A' 1564 1491 1.39      
5 A' 1543 1472 5.12      
6 A' 1464 1397 19.24      
7 A' 1433 1366 12.99      
8 A' 1151 1098 15.21      
9 A' 1080 1030 52.05      
10 A' 899 857 17.52      
11 A' 392 374 7.74      
12 A" 3182 3035 40.40      
13 A" 3143 2997 20.11      
14 A" 1526 1455 7.84      
15 A" 1310 1249 0.66      
16 A" 1191 1136 5.13      
17 A" 841 802 2.04      
18 A" 260 248 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 15156.0 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 14454.2 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
1.17902 0.30767 0.26872

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 0.571 0.000
C2 1.143 -0.412 0.000
F3 -1.241 -0.153 0.000
H4 0.004 1.205 0.890
H5 0.004 1.205 -0.890
H6 2.101 0.114 0.000
H7 1.101 -1.050 0.885
H8 1.101 -1.050 -0.885

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50791.43671.09271.09272.15022.15072.1507
C21.50792.39752.16932.16931.09371.09201.0920
F31.43672.39752.04572.04573.35252.65932.6593
H41.09272.16932.04571.78072.52612.50803.0730
H51.09272.16932.04571.78072.52613.07302.5080
H62.15021.09373.35252.52612.52611.77241.7724
H72.15071.09202.65932.50803.07301.77241.7706
H82.15071.09202.65933.07302.50801.77241.7706

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.475 C1 C2 H7 110.613
C1 C2 H8 110.613 C2 C1 F3 108.998
C2 C1 H4 112.070 C2 C1 H5 112.070
F3 C1 H4 107.165 F3 C1 H5 107.165
H4 C1 H5 109.135 H6 C2 H7 108.370
H6 C2 H8 108.370 H7 C2 H8 108.322
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 0.021      
2 C -0.490      
3 F -0.361      
4 H 0.158      
5 H 0.158      
6 H 0.157      
7 H 0.179      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.060 0.937 0.000 2.263
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.762 -0.477 0.000
y -0.477 -17.674 0.000
z 0.000 0.000 -17.897
Traceless
 xyz
x -2.977 -0.477 0.000
y -0.477 1.656 0.000
z 0.000 0.000 1.321
Polar
3z2-r22.642
x2-y2-3.088
xy-0.477
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.439 0.009 0.000
y 0.009 3.304 0.000
z 0.000 0.000 3.187


<r2> (average value of r2) Å2
<r2> 51.722
(<r2>)1/2 7.192