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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: PBEPBE/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-178.921262
Energy at 298.15K-178.926760
Nuclear repulsion energy78.617265
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/aug-cc-pVTZ
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' 3043 3023 19.90      
2 A' 2973 2953 8.81      
3 A' 2960 2941 40.37      
4 A' 1462 1452 1.91      
5 A' 1444 1434 1.38      
6 A' 1363 1355 23.65      
7 A' 1343 1334 0.73      
8 A' 1086 1079 15.46      
9 A' 1025 1018 93.35      
10 A' 856 851 19.88      
11 A' 399 396 5.60      
12 A" 3056 3036 26.20      
13 A" 3000 2980 20.51      
14 A" 1427 1418 6.12      
15 A" 1252 1244 0.08      
16 A" 1140 1132 3.83      
17 A" 785 780 1.23      
18 A" 242 241 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 14427.6 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 14333.9 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/aug-cc-pVTZ
ABC
1.20157 0.30763 0.27022

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.558 0.000
C2 1.136 -0.439 0.000
F3 -1.238 -0.117 0.000
H4 0.017 1.199 0.895
H5 0.017 1.199 -0.895
H6 2.098 0.095 0.000
H7 1.097 -1.078 0.892
H8 1.097 -1.078 -0.892

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51141.40991.10131.10132.14852.16192.1619
C21.51142.39612.17642.17641.09991.09811.0981
F31.40992.39612.02642.02643.34282.67792.6779
H41.10132.17642.02641.79102.52042.51943.0893
H51.10132.17642.02641.79102.52043.08932.5194
H62.14851.09993.34282.52042.52041.78141.7814
H72.16191.09812.67792.51943.08931.78141.7847
H82.16191.09812.67793.08932.51941.78141.7847

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.714 C1 C2 H7 110.886
C1 C2 H8 110.886 C2 C1 F3 110.160
C2 C1 H4 111.861 C2 C1 H5 111.861
F3 C1 H4 106.955 F3 C1 H5 106.955
H4 C1 H5 108.811 H6 C2 H7 108.282
H6 C2 H8 108.282 H7 C2 H8 108.712
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 C -0.624      
3 F -0.404      
4 H 0.195      
5 H 0.195      
6 H 0.221      
7 H 0.195      
8 H 0.195      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.787 0.702 0.000 1.920
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.045 -0.358 0.000
y -0.358 -18.514 0.000
z 0.000 0.000 -18.484
Traceless
 xyz
x -2.546 -0.358 0.000
y -0.358 1.251 0.000
z 0.000 0.000 1.296
Polar
3z2-r22.591
x2-y2-2.531
xy-0.358
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.873 -0.151 0.000
y -0.151 4.621 0.000
z 0.000 0.000 4.281


<r2> (average value of r2) Å2
<r2> 51.980
(<r2>)1/2 7.210