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: HSEh1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G**
 hartrees
Energy at 0K-575.515647
Energy at 298.15K-575.519003
HF Energy-575.515647
Nuclear repulsion energy360.276210
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 HSEh1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3122 2980 28.57      
2 A' 1477 1410 2.27      
3 A' 1352 1290 178.69      
4 A' 1241 1185 188.83      
5 A' 1177 1123 111.84      
6 A' 889 848 43.51      
7 A' 730 697 32.90      
8 A' 578 551 14.77      
9 A' 519 495 7.55      
10 A' 361 344 0.03      
11 A' 238 227 3.55      
12 A" 1411 1347 18.67      
13 A" 1281 1222 354.39      
14 A" 1201 1146 96.93      
15 A" 586 559 0.74      
16 A" 414 395 1.08      
17 A" 201 192 2.20      
18 A" 61 58 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 8419.5 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 8034.7 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 HSEh1PBE/6-31G**
ABC
0.12248 0.08116 0.06709

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.119 -0.599 0.000
C2 -0.602 0.747 0.000
F3 1.440 -0.440 0.000
F4 -0.233 -1.296 1.085
F5 -0.233 -1.296 -1.085
F6 -0.233 1.433 -1.099
F7 -0.233 1.433 1.099
H8 -1.688 0.603 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52711.33061.33631.33632.33682.33682.1708
C21.52712.36222.34192.34191.34731.34731.0952
F31.33062.36222.16952.16952.74102.74103.2977
F41.33632.34192.16952.17013.49482.72852.6271
F51.33632.34192.16952.17012.72853.49482.6271
F62.33681.34732.74103.49482.72852.19752.0038
F72.33681.34732.74102.72853.49482.19752.0038
H82.17081.09523.29772.62712.62712.00382.0038

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.617 C1 C2 F7 108.617
C1 C2 H8 110.669 C2 C1 F3 111.324
C2 C1 F4 109.567 C2 C1 F5 109.567
F3 C1 F4 108.876 F3 C1 F5 108.876
F4 C1 F5 108.581 F6 C2 F7 109.278
F6 C2 H8 109.814 F7 C2 H8 109.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.759      
2 C 0.405      
3 F -0.249      
4 F -0.256      
5 F -0.256      
6 F -0.269      
7 F -0.269      
8 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.364 -0.069 0.000 1.366
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.176 -0.721 0.000
y -0.721 -37.325 0.000
z 0.000 0.000 -37.145
Traceless
 xyz
x 4.058 -0.721 0.000
y -0.721 -2.164 0.000
z 0.000 0.000 -1.894
Polar
3z2-r2-3.788
x2-y24.149
xy-0.721
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.492 0.019 0.000
y 0.019 3.455 0.000
z 0.000 0.000 3.570


<r2> (average value of r2) Å2
<r2> 165.836
(<r2>)1/2 12.878