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: B2PLYP=FULLultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-575.705725
Energy at 298.15K 
HF Energy-575.283497
Nuclear repulsion energy357.376810
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 B2PLYP=FULLultrafine/aug-cc-pVDZ
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' 3152 3033 12.45      
2 A' 1442 1388 1.88      
3 A' 1303 1254 133.91      
4 A' 1175 1131 192.75      
5 A' 1122 1080 140.41      
6 A' 859 826 51.76      
7 A' 707 681 30.71      
8 A' 563 542 14.07      
9 A' 506 486 6.90      
10 A' 356 343 0.04      
11 A' 241 232 3.66      
12 A" 1356 1305 4.66      
13 A" 1190 1145 386.97      
14 A" 1119 1077 99.01      
15 A" 570 548 0.44      
16 A" 406 391 0.84      
17 A" 209 201 2.08      
18 A" 76 73 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 8175.8 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 7867.6 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
0.12076 0.07973 0.06597

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.119 -0.602 0.000
C2 -0.609 0.748 0.000
F3 1.451 -0.445 0.000
F4 -0.234 -1.308 1.093
F5 -0.234 -1.308 -1.093
F6 -0.234 1.447 -1.106
F7 -0.234 1.447 1.106
H8 -1.698 0.615 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53411.34061.34821.34822.35502.35502.1869
C21.53412.38092.35862.35861.36101.36101.0966
F31.34062.38092.18552.18552.76482.76483.3224
F41.34822.35862.18552.18543.52492.75512.6524
F51.34822.35862.18552.18542.75513.52492.6524
F62.35501.36102.76483.52492.75512.21202.0143
F72.35501.36102.76482.75513.52492.21202.0143
H82.18691.09663.32242.65242.65242.01432.0143

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.721 C1 C2 F7 108.721
C1 C2 H8 111.384 C2 C1 F3 111.660
C2 C1 F4 109.664 C2 C1 F5 109.664
F3 C1 F4 108.745 F3 C1 F5 108.745
F4 C1 F5 108.291 F6 C2 F7 108.708
F6 C2 H8 109.628 F7 C2 H8 109.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability