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 CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-1197.435324
Energy at 298.15K-1197.438506
HF Energy-1197.435324
Nuclear repulsion energy365.153716
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 B3LYP/SDD
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 3202 3078 0.00      
2 A 1380 1327 2.25      
3 A 1278 1228 6.04      
4 A 1114 1071 30.82      
5 A 997 959 192.55      
6 A 773 743 89.73      
7 A 419 403 2.48      
8 A 288 277 1.44      
9 A 158 152 1.35      
10 A 68 66 1.06      
11 B 3211 3087 7.86      
12 B 1314 1264 4.74      
13 B 1225 1178 17.98      
14 B 990 952 24.94      
15 B 753 724 91.99      
16 B 395 380 17.38      
17 B 353 339 13.71      
18 B 318 306 11.92      

Unscaled Zero Point Vibrational Energy (zpe) 9118.5 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 8765.6 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 B3LYP/SDD
ABC
0.09062 0.05746 0.03643

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.249 0.724 0.433
C2 0.249 -0.724 0.433
H3 -1.336 0.805 0.426
H4 1.336 -0.805 0.426
F5 0.249 1.347 1.610
F6 -0.249 -1.347 1.610
Cl7 0.410 1.654 -1.030
Cl8 -0.410 -1.654 -1.030

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53111.09012.20251.42212.38191.85532.7969
C21.53112.20251.09012.38191.42212.79691.8553
H31.09012.20253.12002.05202.68622.42723.0042
H42.20251.09013.12002.68622.05203.00422.4272
F51.42212.38192.05202.68622.73922.66354.0514
F62.38191.42212.68622.05202.73924.05142.6635
Cl71.85532.79692.42723.00422.66354.05143.4085
Cl82.79691.85533.00422.42724.05142.66353.4085

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 113.265 C1 C2 F6 107.466
C1 C2 Cl8 111.006 C2 C1 H3 113.265
C2 C1 F5 107.466 C2 C1 Cl7 111.006
H3 C1 F5 108.810 H3 C1 Cl7 108.160
H4 C2 F6 108.810 H4 C2 Cl8 108.160
F5 C1 Cl7 107.991 F6 C2 Cl8 107.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.107      
2 C -0.107      
3 H 0.286      
4 H 0.286      
5 F -0.194      
6 F -0.194      
7 Cl 0.015      
8 Cl 0.015      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.804 0.804
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.163 -3.103 0.000
y -3.103 -52.084 0.000
z 0.000 0.000 -52.606
Traceless
 xyz
x 8.183 -3.103 0.000
y -3.103 -3.700 0.000
z 0.000 0.000 -4.483
Polar
3z2-r2-8.965
x2-y27.922
xy-3.103
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.937 0.874 0.000
y 0.874 5.574 0.000
z 0.000 0.000 7.075


<r2> (average value of r2) Å2
<r2> 260.802
(<r2>)1/2 16.149