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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-572.752111
Energy at 298.15K-572.755349
HF Energy-572.752111
Nuclear repulsion energy356.424123
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 B1B95/3-21G
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' 3180 3042 22.46      
2 A' 1478 1414 10.38      
3 A' 1355 1296 137.49      
4 A' 1249 1195 172.76      
5 A' 1143 1094 63.35      
6 A' 873 835 43.79      
7 A' 695 665 32.48      
8 A' 543 520 22.23      
9 A' 494 473 13.04      
10 A' 344 330 0.07      
11 A' 223 214 5.57      
12 A" 1429 1367 21.96      
13 A" 1303 1247 274.29      
14 A" 1195 1144 45.76      
15 A" 568 544 1.85      
16 A" 394 377 2.19      
17 A" 185 177 3.73      
18 A" 74 71 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 8363.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 8000.9 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 B1B95/3-21G
ABC
0.11788 0.08066 0.06623

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 -0.591 0.000
C2 -0.609 0.730 0.000
F3 1.465 -0.427 0.000
F4 -0.238 -1.298 1.104
F5 -0.238 -1.298 -1.104
F6 -0.238 1.434 -1.123
F7 -0.238 1.434 1.123
H8 -1.680 0.552 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.50941.35371.35981.35982.34302.34302.1333
C21.50942.37492.33882.33881.37601.37601.0858
F31.35372.37492.20922.20922.76142.76143.2940
F41.35982.33882.20922.20873.52462.73172.5923
F51.35982.33882.20922.20872.73173.52462.5923
F62.34301.37602.76143.52462.73172.24612.0288
F72.34301.37602.76142.73173.52462.24612.0288
H82.13331.08583.29402.59232.59232.02882.0288

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.497 C1 C2 F7 108.497
C1 C2 H8 109.495 C2 C1 F3 111.977
C2 C1 F4 109.092 C2 C1 F5 109.092
F3 C1 F4 109.006 F3 C1 F5 109.006
F4 C1 F5 108.608 F6 C2 F7 109.412
F6 C2 H8 110.446 F7 C2 H8 110.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.800      
2 C 0.326      
3 F -0.269      
4 F -0.276      
5 F -0.276      
6 F -0.278      
7 F -0.278      
8 H 0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.599 -0.114 0.000 1.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.403 -0.762 0.000
y -0.762 -38.322 0.000
z 0.000 0.000 -38.169
Traceless
 xyz
x 4.842 -0.762 0.000
y -0.762 -2.536 0.000
z 0.000 0.000 -2.306
Polar
3z2-r2-4.612
x2-y24.919
xy-0.762
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.799 0.127 0.000
y 0.127 2.630 0.000
z 0.000 0.000 3.007


<r2> (average value of r2) Å2
<r2> 168.598
(<r2>)1/2 12.985