return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: PBEPBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-567.261961
Energy at 298.15K-567.264197
HF Energy-567.261961
Nuclear repulsion energy337.717788
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/STO-3G
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' 3020 2759 37.25      
2 A' 1357 1240 55.91      
3 A' 1230 1124 84.78      
4 A' 1128 1031 20.92      
5 A' 1084 990 90.85      
6 A' 760 694 2.86      
7 A' 637 582 18.89      
8 A' 509 465 10.13      
9 A' 437 399 3.57      
10 A' 285 260 0.11      
11 A' 180 164 0.61      
12 A" 1394 1274 16.95      
13 A" 1256 1148 135.75      
14 A" 1180 1078 47.58      
15 A" 495 453 0.70      
16 A" 336 307 0.58      
17 A" 144 132 0.39      
18 A" 18 16 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 7725.2 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 7057.7 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/STO-3G
ABC
0.11023 0.06920 0.05789

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.133 -0.670 0.000
C2 -0.625 0.843 0.000
F3 1.534 -0.525 0.000
F4 -0.253 -1.394 1.147
F5 -0.253 -1.394 -1.147
F6 -0.253 1.562 -1.150
F7 -0.253 1.562 1.150
H8 -1.753 0.656 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.69211.40881.41031.41032.54032.54032.3057
C21.69212.55572.54112.54111.40641.40641.1432
F31.40882.55572.29452.29452.97802.97803.4929
F41.41032.54112.29452.29503.74352.95582.7877
F51.41032.54112.29452.29502.95583.74352.7877
F62.54031.40642.97803.74352.95582.29942.0960
F72.54031.40642.97802.95583.74352.29942.0960
H82.30571.14323.49292.78772.78772.09602.0960

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.794 C1 C2 F7 109.794
C1 C2 H8 107.232 C2 C1 F3 110.679
C2 C1 F4 109.651 C2 C1 F5 109.651
F3 C1 F4 108.962 F3 C1 F5 108.962
F4 C1 F5 108.906 F6 C2 F7 109.666
F6 C2 H8 110.161 F7 C2 H8 110.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.209      
2 C 0.077      
3 F -0.071      
4 F -0.073      
5 F -0.073      
6 F -0.069      
7 F -0.069      
8 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.642 -0.016 0.000 0.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.177 -0.420 0.000
y -0.420 -32.125 0.000
z 0.000 0.000 -32.300
Traceless
 xyz
x 2.036 -0.420 0.000
y -0.420 -0.886 0.000
z 0.000 0.000 -1.149
Polar
3z2-r2-2.299
x2-y21.948
xy-0.420
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.227 -0.004 0.000
y -0.004 2.578 0.000
z 0.000 0.000 2.583


<r2> (average value of r2) Å2
<r2> 184.944
(<r2>)1/2 13.599