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: B3LYP/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 B3LYP/6-31G*
 hartrees
Energy at 0K-576.007777
Energy at 298.15K-576.011075
HF Energy-576.007777
Nuclear repulsion energy358.364040
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 B3LYP/6-31G*
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' 3116 2993 30.67      
2 A' 1462 1404 0.10      
3 A' 1331 1278 159.00      
4 A' 1218 1170 192.35      
5 A' 1153 1107 120.10      
6 A' 874 840 46.86      
7 A' 719 691 31.23      
8 A' 569 547 14.20      
9 A' 512 492 7.04      
10 A' 357 342 0.03      
11 A' 239 230 3.48      
12 A" 1415 1358 17.62      
13 A" 1246 1196 340.26      
14 A" 1169 1123 103.85      
15 A" 577 554 0.63      
16 A" 409 393 1.00      
17 A" 203 195 2.26      
18 A" 61 59 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 8315.7 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 7985.6 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 B3LYP/6-31G*
ABC
0.12117 0.08028 0.06635

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.120 -0.602 0.000
C2 -0.604 0.750 0.000
F3 1.448 -0.445 0.000
F4 -0.234 -1.302 1.091
F5 -0.234 -1.302 -1.091
F6 -0.234 1.441 -1.105
F7 -0.234 1.441 1.105
H8 -1.690 0.609 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53331.33761.34391.34392.34952.34952.1773
C21.53332.37482.35312.35311.35501.35501.0945
F31.33762.37482.18102.18102.75832.75833.3102
F41.34392.35312.18102.18163.51392.74342.6382
F51.34392.35312.18102.18162.74343.51392.6382
F62.34951.35502.75833.51392.74342.20992.0079
F72.34951.35502.75832.74343.51392.20992.0079
H82.17731.09453.31022.63822.63822.00792.0079

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.710 C1 C2 F7 108.710
C1 C2 H8 110.798 C2 C1 F3 111.443
C2 C1 F4 109.564 C2 C1 F5 109.564
F3 C1 F4 108.850 F3 C1 F5 108.850
F4 C1 F5 108.516 F6 C2 F7 109.270
F6 C2 H8 109.661 F7 C2 H8 109.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.754      
2 C 0.373      
3 F -0.246      
4 F -0.253      
5 F -0.253      
6 F -0.264      
7 F -0.264      
8 H 0.152      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.356 -0.067 0.000 1.358
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.271 -0.715 0.000
y -0.715 -37.430 0.000
z 0.000 0.000 -37.223
Traceless
 xyz
x 4.055 -0.715 0.000
y -0.715 -2.183 0.000
z 0.000 0.000 -1.873
Polar
3z2-r2-3.745
x2-y24.159
xy-0.715
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.501 0.021 0.000
y 0.021 3.477 0.000
z 0.000 0.000 3.600


<r2> (average value of r2) Å2
<r2> 167.456
(<r2>)1/2 12.940