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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-574.196967
Energy at 298.15K-574.199915
HF Energy-573.449647
Nuclear repulsion energy344.109592
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/LANL2DZ
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' 3212 3094 8.64      
2 A' 1397 1345 4.71      
3 A' 1260 1213 86.57      
4 A' 1076 1037 194.53      
5 A' 1021 984 110.75      
6 A' 797 768 80.18      
7 A' 637 613 30.46      
8 A' 505 487 22.50      
9 A' 453 436 14.58      
10 A' 329 316 0.07      
11 A' 231 223 7.04      
12 A" 1339 1289 2.37      
13 A" 1079 1039 349.94      
14 A" 1024 986 48.48      
15 A" 520 501 1.22      
16 A" 368 355 2.66      
17 A" 198 191 5.11      
18 A" 67 65 1.73      

Unscaled Zero Point Vibrational Energy (zpe) 7756.3 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 7470.1 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/LANL2DZ
ABC
0.11082 0.07461 0.06151

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 -0.602 0.000
C2 -0.636 0.755 0.000
F3 1.515 -0.455 0.000
F4 -0.245 -1.352 1.140
F5 -0.245 -1.352 -1.140
F6 -0.245 1.494 -1.155
F7 -0.245 1.494 1.155
H8 -1.723 0.627 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.55431.40121.41301.41302.42162.42162.2174
C21.55432.46762.42742.42741.42611.42611.0951
F31.40122.46762.28112.28112.86892.86893.4145
F41.41302.42742.28112.28013.65642.84612.7210
F51.41302.42742.28112.28012.84613.65642.7210
F62.42161.42612.86893.65642.84612.31102.0667
F72.42161.42612.86892.84613.65642.31102.0667
H82.21741.09513.41452.72102.72102.06672.0667

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.602 C1 C2 F7 108.602
C1 C2 H8 112.478 C2 C1 F3 113.116
C2 C1 F4 109.688 C2 C1 F5 109.688
F3 C1 F4 108.305 F3 C1 F5 108.305
F4 C1 F5 107.576 F6 C2 F7 108.235
F6 C2 H8 109.415 F7 C2 H8 109.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability