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 CHCl2CHF2 (1,1-dichloro-2,2-difluoroethane)

using model chemistry: wB97X-D/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 wB97X-D/3-21G*
 hartrees
Energy at 0K-1191.696312
Energy at 298.15K-1191.699768
HF Energy-1191.696312
Nuclear repulsion energy375.792836
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 wB97X-D/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' 3209 3041 1.35      
2 A' 3180 3014 21.26      
3 A' 1458 1382 23.60      
4 A' 1310 1242 0.01      
5 A' 1132 1073 101.96      
6 A' 1064 1008 22.74      
7 A' 790 749 30.01      
8 A' 549 520 8.56      
9 A' 387 367 21.10      
10 A' 351 333 9.78      
11 A' 253 240 0.05      
12 A" 1428 1353 11.73      
13 A" 1278 1211 10.51      
14 A" 1180 1118 95.04      
15 A" 813 771 115.51      
16 A" 396 375 2.21      
17 A" 176 166 1.82      
18 A" 80 76 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 9516.8 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 9020.0 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 wB97X-D/3-21G*
ABC
0.08124 0.07008 0.03895

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.403 -0.222 0.000
C2 -0.370 1.099 0.000
H3 1.475 -0.034 0.000
H4 -1.442 0.912 0.000
Cl5 -0.005 -1.143 1.474
Cl6 -0.005 -1.143 -1.474
F7 -0.005 1.817 1.123
F8 -0.005 1.817 -1.123

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.53051.08812.16541.78511.78512.36292.3629
C21.53052.16541.08812.70772.70771.38221.3822
H31.08812.16543.06652.36442.36442.62262.6226
H42.16541.08813.06652.90842.90842.03632.0363
Cl51.78512.70772.36442.90842.94752.98013.9375
Cl61.78512.70772.36442.90842.94753.93752.9801
F72.36291.38222.62262.03632.98013.93752.2468
F82.36291.38222.62262.03633.93752.98012.2468

picture of 1,1-dichloro-2,2-difluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.426 C1 C2 F7 108.330
C1 C2 F8 108.330 C2 C1 H3 110.426
C2 C1 Cl5 109.260 C2 C1 Cl6 109.260
H3 C1 Cl5 108.297 H3 C1 Cl6 108.297
H4 C2 F7 110.473 H4 C2 F8 110.473
Cl5 C1 Cl6 111.292 F7 C2 F8 108.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.549      
2 C 0.443      
3 H 0.340      
4 H 0.250      
5 Cl 0.043      
6 Cl 0.043      
7 F -0.285      
8 F -0.285      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.071 -0.041 0.000 0.082
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.426 -0.995 0.000
y -0.995 -51.089 0.000
z 0.000 0.000 -50.205
Traceless
 xyz
x 7.221 -0.995 0.000
y -0.995 -4.273 0.000
z 0.000 0.000 -2.948
Polar
3z2-r2-5.896
x2-y27.663
xy-0.995
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.060 0.230 0.000
y 0.230 5.302 0.000
z 0.000 0.000 7.269


<r2> (average value of r2) Å2
<r2> 244.929
(<r2>)1/2 15.650