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: B1B95/TZVP

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/TZVP
 hartrees
Energy at 0K-576.120795
Energy at 298.15K-576.124208
HF Energy-576.120795
Nuclear repulsion energy360.724108
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/TZVP
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' 3124 2990 17.71      
2 A' 1451 1389 1.10      
3 A' 1323 1266 188.80      
4 A' 1217 1164 192.84      
5 A' 1165 1115 164.14      
6 A' 876 838 44.38      
7 A' 735 703 38.24      
8 A' 586 561 15.75      
9 A' 527 505 8.73      
10 A' 361 345 0.06      
11 A' 242 231 4.47      
12 A" 1395 1334 9.73      
13 A" 1241 1188 420.19      
14 A" 1172 1121 110.76      
15 A" 589 564 0.65      
16 A" 417 399 1.10      
17 A" 208 199 2.92      
18 A" 69 66 0.94      

Unscaled Zero Point Vibrational Energy (zpe) 8348.9 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 7989.1 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/TZVP
ABC
0.12363 0.08072 0.06695

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 -0.604 0.000
C2 -0.599 0.753 0.000
F3 1.438 -0.457 0.000
F4 -0.233 -1.296 1.080
F5 -0.233 -1.296 -1.080
F6 -0.233 1.441 -1.093
F7 -0.233 1.441 1.093
H8 -1.680 0.611 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53641.32411.33051.33052.34532.34532.1726
C21.53642.36852.34462.34461.34171.34171.0902
F31.32412.36852.15912.15912.75412.75413.2948
F41.33052.34462.15912.15953.49392.73642.6253
F51.33052.34462.15912.15952.73643.49392.6253
F62.34531.34172.75413.49392.73642.18531.9936
F72.34531.34172.75412.73643.49392.18531.9936
H82.17261.09023.29482.62532.62531.99361.9936

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.961 C1 C2 F7 108.961
C1 C2 H8 110.462 C2 C1 F3 111.572
C2 C1 F4 109.518 C2 C1 F5 109.518
F3 C1 F4 108.844 F3 C1 F5 108.844
F4 C1 F5 108.485 F6 C2 F7 109.050
F6 C2 H8 109.690 F7 C2 H8 109.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.385      
2 C 0.212      
3 F -0.127      
4 F -0.139      
5 F -0.139      
6 F -0.162      
7 F -0.162      
8 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.613 -0.059 0.000 1.614
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.105 -1.014 0.000
y -1.014 -39.014 0.000
z 0.000 0.000 -38.951
Traceless
 xyz
x 4.878 -1.014 0.000
y -1.014 -2.486 0.000
z 0.000 0.000 -2.392
Polar
3z2-r2-4.784
x2-y24.909
xy-1.014
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.787 0.054 0.000
y 0.054 3.843 0.000
z 0.000 0.000 4.005


<r2> (average value of r2) Å2
<r2> 166.846
(<r2>)1/2 12.917