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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-574.667031
Energy at 298.15K-574.670374
HF Energy-573.510421
Nuclear repulsion energy357.996059
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 MP4/6-31G*
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' 3136 2994        
2 A' 1493 1425        
3 A' 1356 1294        
4 A' 1236 1180        
5 A' 1153 1101        
6 A' 884 844        
7 A' 717 685        
8 A' 566 540        
9 A' 511 488        
10 A' 360 343        
11 A' 243 232        
12 A" 1424 1359        
13 A" 1269 1212        
14 A" 1182 1128        
15 A" 581 554        
16 A" 411 393        
17 A" 206 197        
18 A" 73 70        

Unscaled Zero Point Vibrational Energy (zpe) 8399.2 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 8019.6 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 MP4/6-31G*
ABC
0.12022 0.08074 0.06651

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.117 -0.597 0.000
C2 -0.612 0.742 0.000
F3 1.448 -0.425 0.000
F4 -0.232 -1.303 1.095
F5 -0.232 -1.303 -1.095
F6 -0.232 1.434 -1.111
F7 -0.232 1.434 1.111
H8 -1.699 0.607 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52431.34241.34911.34912.34112.34112.1796
C21.52432.36722.35042.35041.36251.36251.0961
F31.34242.36722.19002.19002.74092.74093.3126
F41.34912.35042.19002.19043.51532.73702.6461
F51.34912.35042.19002.19042.73703.51532.6461
F62.34111.36252.74093.51532.73702.22152.0170
F72.34111.36252.74092.73703.51532.22152.0170
H82.17961.09613.31262.64612.64612.01702.0170

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.250 C1 C2 F7 108.250
C1 C2 H8 111.523 C2 C1 F3 111.173
C2 C1 F4 109.623 C2 C1 F5 109.623
F3 C1 F4 108.913 F3 C1 F5 108.913
F4 C1 F5 108.548 F6 C2 F7 109.215
F6 C2 H8 109.776 F7 C2 H8 109.776
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability