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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-178.996877
Energy at 298.15K-179.002467
HF Energy-178.801736
Nuclear repulsion energy79.275081
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 B2PLYP/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' 3134 3007 24.65      
2 A' 3065 2941 30.81      
3 A' 3061 2937 18.41      
4 A' 1539 1476 0.73      
5 A' 1513 1452 1.48      
6 A' 1439 1381 24.21      
7 A' 1413 1355 1.42      
8 A' 1135 1089 25.18      
9 A' 1077 1033 76.65      
10 A' 896 860 16.39      
11 A' 413 396 5.98      
12 A" 3149 3021 36.42      
13 A" 3108 2982 18.75      
14 A" 1495 1435 5.06      
15 A" 1315 1261 0.18      
16 A" 1201 1152 4.77      
17 A" 819 786 0.53      
18 A" 255 245 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 15013.4 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 14403.9 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 B2PLYP/cc-pVTZ
ABC
1.21626 0.31312 0.27464

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.551 0.000
C2 1.118 -0.459 0.000
F3 -1.226 -0.089 0.000
H4 0.059 1.189 0.884
H5 0.059 1.189 -0.884
H6 2.079 0.054 0.000
H7 1.066 -1.094 0.883
H8 1.066 -1.094 -0.883

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50681.38291.09171.09172.13762.15022.1502
C21.50682.37262.14932.14931.08961.08871.0887
F31.38292.37262.01592.01593.30782.65402.6540
H41.09172.14932.01591.76892.48022.49503.0577
H51.09172.14932.01591.76892.48023.05772.4950
H62.13761.08963.30782.48022.48021.76711.7671
H72.15021.08872.65402.49503.05771.76711.7663
H82.15021.08872.65403.05772.49501.76711.7663

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.789 C1 C2 H7 110.849
C1 C2 H8 110.849 C2 C1 F3 110.308
C2 C1 H4 110.592 C2 C1 H5 110.592
F3 C1 H4 108.530 F3 C1 H5 108.530
H4 C1 H5 108.218 H6 C2 H7 108.431
H6 C2 H8 108.431 H7 C2 H8 108.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.118      
2 C -0.319      
3 F -0.257      
4 H 0.068      
5 H 0.068      
6 H 0.096      
7 H 0.113      
8 H 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.721 0.713 0.000 1.862
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.827 -0.221 0.000
y -0.221 -18.285 0.000
z 0.000 0.000 -18.295
Traceless
 xyz
x -2.537 -0.221 0.000
y -0.221 1.276 0.000
z 0.000 0.000 1.262
Polar
3z2-r22.524
x2-y2-2.542
xy-0.221
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.097 -0.123 0.000
y -0.123 3.977 0.000
z 0.000 0.000 3.736


<r2> (average value of r2) Å2
<r2> 51.199
(<r2>)1/2 7.155