return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-574.612699
Energy at 298.15K-574.616153
HF Energy-573.513213
Nuclear repulsion energy360.025519
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 MP3/6-31G*
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' 3189 2993 21.22      
2 A' 1531 1437 4.46      
3 A' 1394 1308 172.51      
4 A' 1278 1200 191.88      
5 A' 1192 1119 109.66      
6 A' 908 852 52.01      
7 A' 739 694 35.50      
8 A' 584 548 17.20      
9 A' 526 494 9.80      
10 A' 369 346 0.06      
11 A' 247 232 4.36      
12 A" 1454 1365 18.85      
13 A" 1323 1242 334.01      
14 A" 1231 1156 104.86      
15 A" 597 560 1.21      
16 A" 424 398 1.53      
17 A" 211 198 2.62      
18 A" 77 73 0.93      

Unscaled Zero Point Vibrational Energy (zpe) 8637.3 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 8106.9 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 MP3/6-31G*
ABC
0.12190 0.08143 0.06716

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.117 -0.597 0.000
C2 -0.608 0.741 0.000
F3 1.439 -0.427 0.000
F4 -0.231 -1.297 1.087
F5 -0.231 -1.297 -1.087
F6 -0.231 1.429 -1.103
F7 -0.231 1.429 1.103
H8 -1.692 0.605 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52171.33351.33931.33932.33202.33202.1710
C21.52172.35752.34092.34091.35301.35301.0919
F31.33352.35752.17462.17462.72942.72943.2966
F41.33932.34092.17462.17493.49652.72562.6330
F51.33932.34092.17462.17492.72563.49652.6330
F62.33201.35302.72943.49652.72562.20542.0071
F72.33201.35302.72942.72563.49652.20542.0071
H82.17101.09193.29662.63302.63302.00712.0071

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.287 C1 C2 F7 108.287
C1 C2 H8 111.264 C2 C1 F3 111.147
C2 C1 F4 109.643 C2 C1 F5 109.643
F3 C1 F4 108.895 F3 C1 F5 108.895
F4 C1 F5 108.569 F6 C2 F7 109.173
F6 C2 H8 109.890 F7 C2 H8 109.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability