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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: CCSD/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 CCSD/6-31G*
 hartrees
Energy at 0K-574.631006
Energy at 298.15K-574.634434
HF Energy-573.512432
Nuclear repulsion energy359.396278
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 CCSD/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' 3163 2986 22.85      
2 A' 1521 1437 4.10      
3 A' 1384 1307 165.37      
4 A' 1267 1196 192.64      
5 A' 1180 1115 108.69      
6 A' 902 851 52.74      
7 A' 733 693 34.10      
8 A' 579 547 16.73      
9 A' 522 493 9.38      
10 A' 367 346 0.05      
11 A' 247 233 4.27      
12 A" 1444 1363 18.61      
13 A" 1308 1235 332.00      
14 A" 1217 1149 104.99      
15 A" 592 559 1.13      
16 A" 420 397 1.46      
17 A" 211 199 2.60      
18 A" 77 72 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 8565.9 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 8088.8 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 CCSD/6-31G*
ABC
0.12138 0.08121 0.06696

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.117 -0.597 0.000
C2 -0.609 0.741 0.000
F3 1.442 -0.427 0.000
F4 -0.231 -1.299 1.090
F5 -0.231 -1.299 -1.090
F6 -0.231 1.430 -1.105
F7 -0.231 1.430 1.105
H8 -1.694 0.605 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52221.33631.34231.34232.33482.33482.1735
C21.52222.36042.34362.34361.35601.35601.0937
F31.33632.36042.17932.17932.73322.73323.3018
F41.34232.34362.17932.17953.50232.72922.6368
F51.34232.34362.17932.17952.72923.50232.6368
F62.33481.35602.73323.50232.72922.21042.0105
F72.33481.35602.73322.72923.50232.21042.0105
H82.17351.09373.30182.63682.63682.01052.0105

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.290 C1 C2 F7 108.290
C1 C2 H8 111.328 C2 C1 F3 111.168
C2 C1 F4 109.640 C2 C1 F5 109.640
F3 C1 F4 108.896 F3 C1 F5 108.896
F4 C1 F5 108.553 F6 C2 F7 109.183
F6 C2 H8 109.850 F7 C2 H8 109.850
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability