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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-178.845917
Energy at 298.15K-178.851450
Nuclear repulsion energy78.677154
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 PBEPBE/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' 3075 3033 21.90      
2 A' 2993 2952 10.24      
3 A' 2956 2916 51.08      
4 A' 1490 1470 0.41      
5 A' 1464 1444 1.74      
6 A' 1395 1376 32.67      
7 A' 1361 1343 1.72      
8 A' 1109 1094 37.55      
9 A' 1057 1043 54.74      
10 A' 880 868 8.70      
11 A' 395 389 5.00      
12 A" 3084 3042 26.70      
13 A" 2998 2957 43.30      
14 A" 1448 1428 4.72      
15 A" 1263 1245 0.03      
16 A" 1159 1143 4.38      
17 A" 790 779 1.16      
18 A" 266 263 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 14591.6 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 14391.7 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 PBEPBE/6-31G**
ABC
1.19495 0.30928 0.27116

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.559 0.000
C2 1.127 -0.457 0.000
F3 -1.234 -0.098 0.000
H4 0.048 1.208 0.895
H5 0.048 1.208 -0.895
H6 2.105 0.052 0.000
H7 1.072 -1.099 0.893
H8 1.072 -1.099 -0.893

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51781.39861.10671.10672.16552.16702.1670
C21.51782.38902.17722.17721.10241.10121.1012
F31.39862.38902.03762.03763.34312.66802.6680
H41.10672.17722.03761.79052.52422.52433.0935
H51.10672.17722.03761.79052.52423.09352.5243
H62.16551.10243.34312.52422.52421.78621.7862
H72.16701.10122.66802.52433.09351.78621.7858
H82.16701.10122.66803.09352.52431.78621.7858

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.466 C1 C2 H7 110.665
C1 C2 H8 110.665 C2 C1 F3 109.933
C2 C1 H4 111.136 C2 C1 H5 111.136
F3 C1 H4 108.276 F3 C1 H5 108.276
H4 C1 H5 107.983 H6 C2 H7 108.302
H6 C2 H8 108.302 H7 C2 H8 108.358
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.078      
2 C -0.398      
3 F -0.289      
4 H 0.105      
5 H 0.105      
6 H 0.122      
7 H 0.139      
8 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.496 0.565 0.000 1.599
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.040 -0.146 0.000
y -0.146 -17.934 0.000
z 0.000 0.000 -18.052
Traceless
 xyz
x -2.047 -0.146 0.000
y -0.146 1.111 0.000
z 0.000 0.000 0.935
Polar
3z2-r21.871
x2-y2-2.105
xy-0.146
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.701 -0.094 0.000
y -0.094 3.651 0.000
z 0.000 0.000 3.499


<r2> (average value of r2) Å2
<r2> 51.491
(<r2>)1/2 7.176