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: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-1746.662213
Energy at 298.15K-1746.663382
HF Energy-1746.662213
Nuclear repulsion energy679.616436
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 PBEPBE/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 1232 1221 150.94      
2 A 1200 1189 52.91      
3 A 1143 1133 149.10      
4 A 949 940 64.02      
5 A 768 761 159.47      
6 A 704 697 323.49      
7 A 596 591 18.61      
8 A 475 471 5.27      
9 A 398 394 6.59      
10 A 365 361 1.05      
11 A 340 336 1.04      
12 A 302 299 1.07      
13 A 280 277 0.55      
14 A 254 252 0.36      
15 A 219 217 0.85      
16 A 186 184 1.96      
17 A 149 148 2.37      
18 A 62 62 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 4809.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 4766.2 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 PBEPBE/3-21G
ABC
0.04910 0.03427 0.02832

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.524 0.154 0.369
C2 -0.660 -0.571 -0.305
F3 0.351 0.240 1.721
Cl4 2.074 -0.844 -0.004
Cl5 0.715 1.843 -0.388
Cl6 -2.251 0.275 0.286
F7 -0.576 -0.491 -1.663
F8 -0.701 -1.880 0.100

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 Cl5 Cl6 F7 F8
C11.54391.36581.88131.86082.77862.39982.3900
C21.54392.40592.76462.77921.89611.36301.3711
F31.36582.40592.66882.67432.97153.58492.8692
Cl41.88132.76462.66883.03634.47693.14702.9642
Cl51.86082.77922.67433.03633.42132.95634.0130
Cl62.77861.89612.97154.47693.42132.68182.6609
F72.39981.36303.58493.14702.95632.68182.2482
F82.39001.37112.86922.96424.01302.66092.2482

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 107.310 C1 C2 F7 111.138
C1 C2 F8 110.009 C2 C1 F3 111.412
C2 C1 Cl4 107.225 C2 C1 Cl5 109.075
F3 C1 Cl4 109.525 F3 C1 Cl5 111.027
Cl4 C1 Cl5 108.459 Cl6 C2 F7 109.661
Cl6 C2 F8 107.986 F7 C2 F8 110.627
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 C 0.364      
3 F -0.159      
4 Cl 0.120      
5 Cl 0.142      
6 Cl 0.072      
7 F -0.180      
8 F -0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.129 -0.356 -0.037 0.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.089 -0.080 -0.080
y -0.080 -64.491 0.172
z -0.080 0.172 -64.488
Traceless
 xyz
x -1.600 -0.080 -0.080
y -0.080 0.798 0.172
z -0.080 0.172 0.802
Polar
3z2-r21.603
x2-y2-1.598
xy-0.080
xz-0.080
yz0.172


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.299 -1.905 -1.171
y -1.905 7.913 -0.457
z -1.171 -0.457 5.010


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000