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All results from a given calculation for C2H5F (fluoroethane)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-179.001800
Energy at 298.15K-179.007360
Nuclear repulsion energy79.136274
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 B1B95/6-31+G**
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' 3151 3014 21.82      
2 A' 3074 2941 34.47      
3 A' 3068 2935 17.45      
4 A' 1518 1452 1.02      
5 A' 1499 1434 2.14      
6 A' 1426 1364 33.67      
7 A' 1391 1330 2.19      
8 A' 1127 1078 31.47      
9 A' 1081 1034 88.75      
10 A' 893 855 17.64      
11 A' 407 389 6.60      
12 A" 3165 3028 31.29      
13 A" 3123 2988 19.54      
14 A" 1480 1416 7.06      
15 A" 1295 1239 0.11      
16 A" 1182 1130 5.14      
17 A" 808 773 1.00      
18 A" 254 243 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 14971.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 14321.8 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 B1B95/6-31+G**
ABC
1.21187 0.31234 0.27402

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.557 0.000
C2 1.127 -0.443 0.000
F3 -1.228 -0.111 0.000
H4 0.018 1.193 0.890
H5 0.018 1.193 -0.890
H6 2.088 0.080 0.000
H7 1.081 -1.078 0.887
H8 1.081 -1.078 -0.887

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50671.39751.09391.09392.14172.15172.1517
C21.50672.37792.16742.16741.09351.09191.0919
F31.39752.37792.01042.01043.32072.65552.6555
H41.09392.16742.01041.78042.51332.50763.0733
H51.09392.16742.01041.78042.51333.07332.5076
H62.14171.09353.32072.51332.51331.77211.7721
H72.15171.09192.65552.50763.07331.77211.7733
H82.15171.09192.65553.07332.50761.77211.7733

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.884 C1 C2 H7 110.780
C1 C2 H8 110.780 C2 C1 F3 109.864
C2 C1 H4 111.929 C2 C1 H5 111.929
F3 C1 H4 106.968 F3 C1 H5 106.968
H4 C1 H5 108.942 H6 C2 H7 108.366
H6 C2 H8 108.366 H7 C2 H8 108.592
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.011      
2 C -0.500      
3 F -0.317      
4 H 0.146      
5 H 0.146      
6 H 0.162      
7 H 0.175      
8 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.956 0.806 0.000 2.115
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.016 -0.371 0.000
y -0.371 -18.172 0.000
z 0.000 0.000 -18.230
Traceless
 xyz
x -2.815 -0.371 0.000
y -0.371 1.451 0.000
z 0.000 0.000 1.364
Polar
3z2-r22.728
x2-y2-2.844
xy-0.371
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.014 -0.086 0.000
y -0.086 3.886 0.000
z 0.000 0.000 3.655


<r2> (average value of r2) Å2
<r2> 51.317
(<r2>)1/2 7.164