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: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-572.798361
Energy at 298.15K-572.801406
HF Energy-572.798361
Nuclear repulsion energy350.195887
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 BLYP/3-21G*
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' 3025 3005 39.28      
2 A' 1408 1399 10.21      
3 A' 1244 1236 111.90      
4 A' 1151 1144 168.31      
5 A' 1066 1059 54.23      
6 A' 817 811 42.91      
7 A' 655 650 22.35      
8 A' 516 512 16.55      
9 A' 469 466 8.51      
10 A' 331 329 0.03      
11 A' 220 219 4.33      
12 A" 1373 1364 17.52      
13 A" 1188 1181 265.15      
14 A" 1091 1084 37.02      
15 A" 536 533 0.90      
16 A" 372 369 1.36      
17 A" 191 189 3.14      
18 A" 76 76 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 7864.2 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 7813.0 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 BLYP/3-21G*
ABC
0.11347 0.07803 0.06400

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.125 -0.601 0.000
C2 -0.616 0.740 0.000
F3 1.493 -0.430 0.000
F4 -0.244 -1.319 1.127
F5 -0.244 -1.319 -1.127
F6 -0.244 1.457 -1.144
F7 -0.244 1.457 1.144
H8 -1.699 0.555 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53241.37901.38601.38602.38362.38362.1596
C21.53242.41222.37702.37701.40051.40051.0987
F31.37902.41222.25342.25342.80872.80873.3409
F41.38602.37702.25342.25303.58682.77662.6270
F51.38602.37702.25342.25302.77663.58682.6270
F62.38361.40052.80873.58682.77662.28842.0590
F72.38361.40052.80872.77663.58682.28842.0590
H82.15961.09873.34092.62702.62702.05902.0590

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.640 C1 C2 F7 108.640
C1 C2 H8 109.217 C2 C1 F3 111.787
C2 C1 F4 108.969 C2 C1 F5 108.969
F3 C1 F4 109.166 F3 C1 F5 109.166
F4 C1 F5 108.734 F6 C2 F7 109.572
F6 C2 H8 110.365 F7 C2 H8 110.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.680      
2 C 0.275      
3 F -0.226      
4 F -0.233      
5 F -0.233      
6 F -0.235      
7 F -0.235      
8 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.343 -0.119 0.000 1.348
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.548 -0.599 0.000
y -0.599 -37.852 0.000
z 0.000 0.000 -37.616
Traceless
 xyz
x 4.186 -0.599 0.000
y -0.599 -2.270 0.000
z 0.000 0.000 -1.916
Polar
3z2-r2-3.832
x2-y24.305
xy-0.599
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.036 0.128 0.000
y 0.128 2.905 0.000
z 0.000 0.000 3.286


<r2> (average value of r2) Å2
<r2> 173.555
(<r2>)1/2 13.174