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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-575.029962
Energy at 298.15K-575.033434
HF Energy-573.740085
Nuclear repulsion energy359.449808
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/TZVP
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' 3180 3014 16.34      
2 A' 1483 1406 0.49      
3 A' 1343 1273 162.15      
4 A' 1226 1163 200.84      
5 A' 1165 1104 162.06      
6 A' 884 838 52.32      
7 A' 738 700 35.40      
8 A' 590 559 15.03      
9 A' 533 505 8.75      
10 A' 367 348 0.07      
11 A' 250 237 4.55      
12 A" 1425 1350 9.74      
13 A" 1243 1178 394.42      
14 A" 1173 1111 118.56      
15 A" 595 564 0.69      
16 A" 422 400 1.09      
17 A" 215 203 3.03      
18 A" 75 71 0.98      

Unscaled Zero Point Vibrational Energy (zpe) 8451.2 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 8010.9 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/TZVP
ABC
0.12244 0.08037 0.06657

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 -0.603 0.000
C2 -0.601 0.751 0.000
F3 1.443 -0.454 0.000
F4 -0.234 -1.299 1.085
F5 -0.234 -1.299 -1.085
F6 -0.234 1.443 -1.099
F7 -0.234 1.443 1.099
H8 -1.681 0.610 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53501.33021.33711.33712.34972.34972.1730
C21.53502.37312.34842.34841.34951.34951.0890
F31.33022.37312.16922.16922.76022.76023.3006
F41.33712.34842.16922.16953.50552.74242.6300
F51.33712.34842.16922.16952.74243.50552.6300
F62.34971.34952.76023.50552.74242.19751.9988
F72.34971.34952.76022.74243.50552.19751.9988
H82.17301.08903.30062.63002.63001.99881.9988

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.924 C1 C2 F7 108.924
C1 C2 H8 110.660 C2 C1 F3 111.639
C2 C1 F4 109.516 C2 C1 F5 109.516
F3 C1 F4 108.830 F3 C1 F5 108.830
F4 C1 F5 108.448 F6 C2 F7 109.013
F6 C2 H8 109.645 F7 C2 H8 109.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability