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: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-573.774573
Energy at 298.15K-573.778329
HF Energy-573.774573
Nuclear repulsion energy365.294320
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 HF/Def2TZVPP
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' 3279 2972 23.77      
2 A' 1611 1461 1.04      
3 A' 1459 1323 222.24      
4 A' 1347 1221 193.69      
5 A' 1264 1145 187.49      
6 A' 954 865 52.34      
7 A' 800 725 45.17      
8 A' 637 577 18.07      
9 A' 575 522 11.40      
10 A' 395 358 0.13      
11 A' 266 241 4.69      
12 A" 1521 1379 14.86      
13 A" 1383 1253 409.34      
14 A" 1294 1173 149.04      
15 A" 644 584 1.46      
16 A" 459 416 1.38      
17 A" 229 208 2.88      
18 A" 85 77 1.08      

Unscaled Zero Point Vibrational Energy (zpe) 9100.6 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 8248.8 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 HF/Def2TZVPP
ABC
0.12759 0.08227 0.06841

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.118 -0.600 0.000
C2 -0.593 0.751 0.000
F3 1.416 -0.464 0.000
F4 -0.229 -1.287 1.060
F5 -0.229 -1.287 -1.060
F6 -0.229 1.434 -1.074
F7 -0.229 1.434 1.074
H8 -1.664 0.621 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52741.30431.31001.31002.32642.32642.1608
C21.52742.34762.32602.32601.32381.32381.0786
F31.30432.34762.12242.12242.73112.73113.2651
F41.31002.32602.12242.12093.45792.72052.6124
F51.31002.32602.12242.12092.72053.45792.6124
F62.32641.32382.73113.45792.72052.14811.9681
F72.32641.32382.73112.72053.45792.14811.9681
H82.16081.07863.26512.61242.61241.96811.9681

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.153 C1 C2 F7 109.153
C1 C2 H8 110.850 C2 C1 F3 111.761
C2 C1 F4 109.885 C2 C1 F5 109.885
F3 C1 F4 108.560 F3 C1 F5 108.560
F4 C1 F5 108.102 F6 C2 F7 108.460
F6 C2 H8 109.592 F7 C2 H8 109.592
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.671      
2 C 0.465      
3 F -0.224      
4 F -0.233      
5 F -0.233      
6 F -0.244      
7 F -0.244      
8 H 0.043      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.667 -0.059 0.000 1.668
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.700 -1.049 0.000
y -1.049 -38.683 0.000
z 0.000 0.000 -38.633
Traceless
 xyz
x 4.958 -1.049 0.000
y -1.049 -2.517 0.000
z 0.000 0.000 -2.442
Polar
3z2-r2-4.883
x2-y24.984
xy-1.049
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.595 0.031 0.000
y 0.031 3.661 0.000
z 0.000 0.000 3.754


<r2> (average value of r2) Å2
<r2> 163.377
(<r2>)1/2 12.782