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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-574.620462
Energy at 298.15K-574.623908
HF Energy-573.512853
Nuclear repulsion energy359.708634
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 CCD/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' 3167 2997 22.41      
2 A' 1527 1445 4.45      
3 A' 1390 1316 170.89      
4 A' 1274 1206 191.44      
5 A' 1188 1124 108.78      
6 A' 905 857 52.20      
7 A' 737 698 34.95      
8 A' 582 551 16.95      
9 A' 525 497 9.69      
10 A' 368 348 0.06      
11 A' 247 234 4.34      
12 A" 1449 1372 19.29      
13 A" 1319 1248 332.44      
14 A" 1227 1162 104.62      
15 A" 595 563 1.20      
16 A" 423 400 1.51      
17 A" 211 200 2.62      
18 A" 77 73 0.92      

Unscaled Zero Point Vibrational Energy (zpe) 8605.8 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 8145.4 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 CCD/6-31G*
ABC
0.12166 0.08130 0.06705

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.117 -0.597 0.000
C2 -0.608 0.742 0.000
F3 1.441 -0.428 0.000
F4 -0.231 -1.298 1.088
F5 -0.231 -1.298 -1.088
F6 -0.231 1.430 -1.104
F7 -0.231 1.430 1.104
H8 -1.693 0.605 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52231.33481.34061.34062.33382.33382.1729
C21.52232.35922.34232.34231.35431.35431.0936
F31.33482.35922.17672.17672.73202.73203.2999
F41.34062.34232.17672.17703.49942.72762.6351
F51.34062.34232.17672.17702.72763.49942.6351
F62.33381.35432.73203.49942.72762.20772.0091
F72.33381.35432.73202.72763.49942.20772.0091
H82.17291.09363.29992.63512.63512.00912.0091

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.309 C1 C2 F7 108.309
C1 C2 H8 111.273 C2 C1 F3 111.158
C2 C1 F4 109.637 C2 C1 F5 109.637
F3 C1 F4 108.899 F3 C1 F5 108.899
F4 C1 F5 108.565 F6 C2 F7 109.191
F6 C2 H8 109.855 F7 C2 H8 109.855
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability