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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-572.320028
Energy at 298.15K-572.323122
HF Energy-572.320028
Nuclear repulsion energy351.722991
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 PBEPBE/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' 3031 3003 36.31      
2 A' 1411 1398 10.18      
3 A' 1272 1261 119.41      
4 A' 1173 1163 165.61      
5 A' 1086 1076 53.53      
6 A' 830 822 41.08      
7 A' 663 657 23.57      
8 A' 521 517 17.40      
9 A' 473 469 8.83      
10 A' 334 331 0.02      
11 A' 219 217 4.33      
12 A" 1371 1358 19.23      
13 A" 1218 1207 269.22      
14 A" 1119 1109 35.28      
15 A" 542 537 0.97      
16 A" 375 371 1.43      
17 A" 189 187 3.02      
18 A" 76 75 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 7951.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 7879.0 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 PBEPBE/3-21G
ABC
0.11446 0.07871 0.06457

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.125 -0.599 0.000
C2 -0.613 0.738 0.000
F3 1.487 -0.430 0.000
F4 -0.243 -1.313 1.121
F5 -0.243 -1.313 -1.121
F6 -0.243 1.451 -1.139
F7 -0.243 1.451 1.139
H8 -1.698 0.551 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52681.37281.37961.37962.37322.37322.1549
C21.52682.40322.36662.36661.39381.39381.1008
F31.37282.40322.24312.24312.79762.79763.3327
F41.37962.36662.24312.24293.57042.76362.6168
F51.37962.36662.24312.24292.76363.57042.6168
F62.37321.39382.79763.57042.76362.27812.0554
F72.37321.39382.79762.76363.57042.27812.0554
H82.15491.10083.33272.61682.61682.05542.0554

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.614 C1 C2 F7 108.614
C1 C2 H8 109.118 C2 C1 F3 111.847
C2 C1 F4 108.927 C2 C1 F5 108.927
F3 C1 F4 109.165 F3 C1 F5 109.165
F4 C1 F5 108.757 F6 C2 F7 109.621
F6 C2 H8 110.414 F7 C2 H8 110.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.678      
2 C 0.250      
3 F -0.226      
4 F -0.232      
5 F -0.232      
6 F -0.234      
7 F -0.234      
8 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.354 -0.122 0.000 1.359
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.551 -0.601 0.000
y -0.601 -37.869 0.000
z 0.000 0.000 -37.657
Traceless
 xyz
x 4.212 -0.601 0.000
y -0.601 -2.266 0.000
z 0.000 0.000 -1.947
Polar
3z2-r2-3.893
x2-y24.319
xy-0.601
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.025 0.126 0.000
y 0.126 2.882 0.000
z 0.000 0.000 3.262


<r2> (average value of r2) Å2
<r2> 172.256
(<r2>)1/2 13.125