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: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-1197.431857
Energy at 298.15K-1197.435358
HF Energy-1197.431857
Nuclear repulsion energy378.910683
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 mPW1PW91/6-31G**
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' 3165 3011 8.56      
2 A' 3152 2999 15.42      
3 A' 1433 1363 40.19      
4 A' 1270 1208 1.74      
5 A' 1160 1104 124.43      
6 A' 1095 1042 17.04      
7 A' 809 770 35.06      
8 A' 575 548 8.00      
9 A' 400 381 14.55      
10 A' 347 330 11.37      
11 A' 254 242 0.48      
12 A" 1406 1338 17.24      
13 A" 1267 1206 18.52      
14 A" 1185 1128 143.85      
15 A" 832 791 145.05      
16 A" 399 380 2.08      
17 A" 180 172 1.24      
18 A" 76 72 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 9502.7 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 9041.8 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 mPW1PW91/6-31G**
ABC
0.08277 0.07073 0.03948

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.397 -0.226 0.000
C2 -0.362 1.101 0.000
H3 1.475 -0.057 0.000
H4 -1.440 0.932 0.000
Cl5 -0.005 -1.137 1.468
Cl6 -0.005 -1.137 -1.468
F7 -0.005 1.807 1.093
F8 -0.005 1.807 -1.093

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.52921.09132.17131.77381.77382.34332.3433
C21.52922.17131.09132.70082.70081.34921.3492
H31.09132.17133.07782.34762.34762.61882.6188
H42.17131.09133.07782.91502.91502.00512.0051
Cl51.77382.70082.34762.91502.93662.96823.9024
Cl61.77382.70082.34762.91502.93663.90242.9682
F72.34331.34922.61882.00512.96823.90242.1859
F82.34331.34922.61882.00513.90242.96822.1859

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 110.808 C1 C2 F7 108.838
C1 C2 F8 108.838 C2 C1 H3 110.808
C2 C1 Cl5 109.487 C2 C1 Cl6 109.487
H3 C1 Cl5 107.651 H3 C1 Cl6 107.651
H4 C2 F7 110.047 H4 C2 F8 110.047
Cl5 C1 Cl6 111.739 F7 C2 F8 108.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.428      
2 C 0.530      
3 H 0.250      
4 H 0.144      
5 Cl 0.027      
6 Cl 0.027      
7 F -0.274      
8 F -0.274      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.025 0.110 0.000 0.113
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.317 -0.905 0.000
y -0.905 -49.845 0.000
z 0.000 0.000 -49.095
Traceless
 xyz
x 6.153 -0.905 0.000
y -0.905 -3.639 0.000
z 0.000 0.000 -2.514
Polar
3z2-r2-5.029
x2-y26.528
xy-0.905
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.602 0.142 0.000
y 0.142 5.957 0.000
z 0.000 0.000 7.659


<r2> (average value of r2) Å2
<r2> 241.608
(<r2>)1/2 15.544