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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: CCSD(T)/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31+G**
 hartrees
Energy at 0K-574.714737
Energy at 298.15K-574.718109
HF Energy-573.534526
Nuclear repulsion energy357.293162
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 CCSD(T)/6-31+G**
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' 3184 3056        
2 A' 1476 1417        
3 A' 1336 1282        
4 A' 1215 1166        
5 A' 1140 1094        
6 A' 873 838        
7 A' 714 685        
8 A' 566 543        
9 A' 509 489        
10 A' 359 345        
11 A' 245 235        
12 A" 1395 1338        
13 A" 1237 1187        
14 A" 1160 1113        
15 A" 576 552        
16 A" 410 393        
17 A" 211 202        
18 A" 82 78        

Unscaled Zero Point Vibrational Energy (zpe) 8343.2 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 8006.1 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 CCSD(T)/6-31+G**
ABC
0.12024 0.08003 0.06608

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.119 -0.601 0.000
C2 -0.612 0.746 0.000
F3 1.451 -0.436 0.000
F4 -0.234 -1.307 1.095
F5 -0.234 -1.307 -1.095
F6 -0.234 1.442 -1.109
F7 -0.234 1.442 1.109
H8 -1.695 0.614 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53221.34231.35011.35012.35142.35142.1828
C21.53222.37792.35742.35741.36361.36361.0904
F31.34232.37792.19012.19012.75642.75643.3164
F41.35012.35742.19012.19033.52422.74952.6504
F51.35012.35742.19012.19032.74953.52422.6504
F62.35141.36362.75643.52422.74952.21882.0128
F72.35141.36362.75642.74953.52422.21882.0128
H82.18281.09043.31642.65042.65042.01282.0128

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.446 C1 C2 F7 108.446
C1 C2 H8 111.564 C2 C1 F3 111.458
C2 C1 F4 109.585 C2 C1 F5 109.585
F3 C1 F4 108.865 F3 C1 F5 108.865
F4 C1 F5 108.424 F6 C2 F7 108.897
F6 C2 H8 109.716 F7 C2 H8 109.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability