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 CF3CF2Cl (pentafluorochloroethane)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-1028.142694
Energy at 298.15K-1028.144980
HF Energy-1027.216136
Nuclear repulsion energy527.197928
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 QCISD/3-21G*
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' 1328 1276 115.19      
2 A' 1319 1268 111.99      
3 A' 1152 1107 166.98      
4 A' 964 926 223.41      
5 A' 719 691 39.60      
6 A' 615 591 22.31      
7 A' 535 514 14.62      
8 A' 420 404 0.89      
9 A' 352 338 0.16      
10 A' 310 298 1.40      
11 A' 184 177 3.13      
12 A" 1331 1280 228.00      
13 A" 1250 1201 65.90      
14 A" 578 556 2.17      
15 A" 430 414 5.00      
16 A" 320 308 0.25      
17 A" 204 196 4.21      
18 A" 62 59 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 6035.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 5800.8 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 QCISD/3-21G*
ABC
0.07484 0.05003 0.04532

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.098 -0.630 0.000
C2 -0.631 0.718 0.000
Cl3 1.851 -0.403 0.000
F4 -0.290 -1.329 1.124
F5 -0.290 -1.329 -1.124
F6 -1.982 0.502 0.000
F7 -0.290 1.430 1.114
F8 -0.290 1.430 -1.114

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 F5 F6 F7 F8
C11.53241.76751.37891.37892.36772.37442.3744
C21.53242.72282.36012.36011.36831.36551.3655
Cl31.76752.72282.58872.58873.93783.03073.0307
F41.37892.36012.58872.24722.73472.75993.5529
F51.37892.36012.58872.24722.73473.55292.7599
F62.36771.36833.93782.73472.73472.22842.2284
F72.37441.36553.03072.75993.55292.22842.2276
F82.37441.36553.03073.55292.75992.22842.2276

picture of pentafluorochloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.297 C1 C2 F7 109.909
C1 C2 F8 109.909 C2 C1 Cl3 111.000
C2 C1 F4 108.206 C2 C1 F5 108.206
Cl3 C1 F4 110.110 Cl3 C1 F5 110.110
F4 C1 F5 109.150 F6 C2 F7 109.200
F6 C2 F8 109.200 F7 C2 F8 109.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability