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: M06-2X/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 M06-2X/3-21G
 hartrees
Energy at 0K-1191.398083
Energy at 298.15K-1191.401490
HF Energy-1191.398083
Nuclear repulsion energy372.238142
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 M06-2X/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' 3180 3049 0.45      
2 A' 3164 3034 15.26      
3 A' 1444 1384 29.38      
4 A' 1270 1218 0.33      
5 A' 1153 1106 94.95      
6 A' 1088 1043 23.75      
7 A' 758 727 35.56      
8 A' 550 527 11.74      
9 A' 378 362 19.26      
10 A' 319 306 15.28      
11 A' 229 220 0.26      
12 A" 1454 1394 13.10      
13 A" 1244 1192 7.38      
14 A" 1220 1170 93.64      
15 A" 799 766 120.51      
16 A" 396 379 2.20      
17 A" 171 164 1.96      
18 A" 100 96 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 9458.0 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 9067.4 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 M06-2X/3-21G
ABC
0.07844 0.06971 0.03823

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.421 -0.194 0.000
C2 -0.371 1.100 0.000
H3 1.491 -0.006 0.000
H4 -1.441 0.912 0.000
Cl5 -0.007 -1.149 1.508
Cl6 -0.007 -1.149 -1.508
F7 -0.007 1.818 1.123
F8 -0.007 1.818 -1.123

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.51771.08642.16591.83551.83552.34362.3436
C21.51772.16591.08642.73262.73261.38151.3815
H31.08642.16593.07232.41332.41332.61342.6134
H42.16591.08643.07232.92922.92922.03442.0344
Cl51.83552.73262.41332.92923.01662.99163.9655
Cl61.83552.73262.41332.92923.01663.96552.9916
F72.34361.38152.61342.03442.99163.96552.2462
F82.34361.38152.61342.03443.96552.99162.2462

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 111.472 C1 C2 F7 107.776
C1 C2 F8 107.776 C2 C1 H3 111.472
C2 C1 Cl5 108.790 C2 C1 Cl6 108.790
H3 C1 Cl5 108.640 H3 C1 Cl6 108.640
H4 C2 F7 110.471 H4 C2 F8 110.471
Cl5 C1 Cl6 110.513 F7 C2 F8 108.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.704      
2 C 0.490      
3 H 0.348      
4 H 0.245      
5 Cl 0.101      
6 Cl 0.101      
7 F -0.291      
8 F -0.291      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.021 0.219 0.000 0.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.750 -1.099 0.000
y -1.099 -52.175 0.000
z 0.000 0.000 -51.851
Traceless
 xyz
x 8.263 -1.099 0.000
y -1.099 -4.374 0.000
z 0.000 0.000 -3.889
Polar
3z2-r2-7.778
x2-y28.425
xy-1.099
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.540 0.357 0.000
y 0.357 4.973 0.000
z 0.000 0.000 7.547


<r2> (average value of r2) Å2
<r2> 249.690
(<r2>)1/2 15.802