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 CF2ClCFCl2 (Ethane, 1,1,2-trichloro-1,2,2-trifluoro-)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-127.063008
Energy at 298.15K-127.064392
HF Energy-126.392395
Nuclear repulsion energy 
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/CEP-121G
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 1160 1132 30.94      
2 A 1037 1013 145.96      
3 A 990 966 170.80      
4 A 973 950 54.86      
5 A 855 835 166.62      
6 A 762 744 193.33      
7 A 573 559 7.90      
8 A 477 466 6.35      
9 A 418 408 2.46      
10 A 402 392 2.22      
11 A 361 352 3.71      
12 A 323 315 0.74      
13 A 290 283 0.64      
14 A 270 264 0.12      
15 A 228 223 0.15      
16 A 190 185 2.20      
17 A 154 150 0.98      
18 A 70 69 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 4766.2 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 4651.8 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 MP2/CEP-121G
ABC
0.04802 0.03351 0.02733

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.591 0.153 0.292
C2 -0.733 -0.529 -0.224
F3 0.465 0.252 1.726
Cl4 2.059 -0.905 -0.077
Cl5 0.786 1.858 -0.386
Cl6 -2.264 0.374 0.233
F7 -0.663 -0.658 -1.644
F8 -0.805 -1.850 0.307

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 Cl5 Cl6 F7 F8
C11.57651.44251.84711.84532.86352.44502.4416
C21.57652.41852.82132.83421.83491.42701.4261
F31.44252.41852.67012.67293.11273.66812.8362
Cl41.84712.82132.67013.05794.51853.14993.0400
Cl51.84532.83422.67293.05793.44763.16454.0943
Cl62.86351.83493.11274.51853.44762.67442.6613
F72.44501.42703.66813.14993.16452.67442.2903
F82.44161.42612.83623.04004.09432.66132.2903

picture of Ethane, 1,1,2-trichloro-1,2,2-trifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 113.939 C1 C2 F7 108.887
C1 C2 F8 108.713 C2 C1 F3 106.386
C2 C1 Cl4 110.745 C2 C1 Cl5 111.602
F3 C1 Cl4 107.887 F3 C1 Cl5 108.149
Cl4 C1 Cl5 111.816 Cl6 C2 F7 109.519
Cl6 C2 F8 108.748 F7 C2 F8 106.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability