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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-131.335274
Energy at 298.15K-131.338221
HF Energy-130.681869
Nuclear repulsion energy193.290937
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 MP2/CEP-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' 3217 3109 12.68      
2 A' 1396 1349 2.73      
3 A' 1260 1218 86.09      
4 A' 1082 1046 185.79      
5 A' 1021 987 117.74      
6 A' 795 768 79.93      
7 A' 634 612 30.85      
8 A' 506 489 22.26      
9 A' 453 438 14.02      
10 A' 329 318 0.10      
11 A' 231 223 7.14      
12 A" 1334 1289 2.03      
13 A" 1084 1048 322.68      
14 A" 1029 994 75.42      
15 A" 517 500 1.16      
16 A" 369 357 2.45      
17 A" 199 192 5.06      
18 A" 64 62 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 7759.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 7497.9 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 MP2/CEP-31G
ABC
0.11010 0.07352 0.06073

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 -0.609 0.000
C2 -0.639 0.766 0.000
F3 1.522 -0.464 0.000
F4 -0.246 -1.362 1.144
F5 -0.246 -1.362 -1.144
F6 -0.246 1.506 -1.158
F7 -0.246 1.506 1.158
H8 -1.734 0.641 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.57221.40661.41801.41802.43962.43962.2385
C21.57222.48642.44742.44741.42971.42971.1016
F31.40662.48642.28922.28922.88902.88903.4380
F41.41802.44742.28922.28773.67742.86772.7447
F51.41802.44742.28922.28772.86773.67742.7447
F62.43961.42972.88903.67742.86772.31672.0744
F72.43961.42972.88902.86773.67742.31672.0744
H82.23851.10163.43802.74472.74472.07442.0744

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.627 C1 C2 F7 108.627
C1 C2 H8 112.498 C2 C1 F3 113.054
C2 C1 F4 109.756 C2 C1 F5 109.756
F3 C1 F4 108.283 F3 C1 F5 108.283
F4 C1 F5 107.543 F6 C2 F7 108.228
F6 C2 H8 109.383 F7 C2 H8 109.383
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability