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: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-1197.292520
Energy at 298.15K-1197.295965
HF Energy-1197.292520
Nuclear repulsion energy377.398757
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 B3PW91/6-31+G**
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' 3156 3030 8.33      
2 A' 3144 3019 7.07      
3 A' 1406 1350 33.89      
4 A' 1256 1205 1.18      
5 A' 1133 1088 126.81      
6 A' 1072 1029 26.89      
7 A' 796 765 34.70      
8 A' 566 543 7.42      
9 A' 397 381 17.00      
10 A' 344 330 10.94      
11 A' 250 240 0.40      
12 A" 1361 1306 8.67      
13 A" 1253 1203 16.77      
14 A" 1122 1077 177.88      
15 A" 810 778 145.04      
16 A" 392 376 1.92      
17 A" 178 171 1.16      
18 A" 75 72 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 9354.0 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 8980.8 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 B3PW91/6-31+G**
ABC
0.08234 0.07000 0.03917

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.404 -0.230 0.000
C2 -0.360 1.097 0.000
H3 1.484 -0.069 0.000
H4 -1.441 0.936 0.000
Cl5 -0.006 -1.142 1.472
Cl6 -0.006 -1.142 -1.472
F7 -0.006 1.820 1.096
F8 -0.006 1.820 -1.096

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.53161.09222.18241.77921.77922.36022.3602
C21.53162.18241.09222.70302.70301.35951.3595
H31.09222.18243.09282.35312.35312.64362.6436
H42.18241.09223.09282.92312.92312.00992.0099
Cl51.77922.70302.35312.92312.94382.98543.9197
Cl61.77922.70302.35312.92312.94383.91972.9854
F72.36021.35952.64362.00992.98543.91972.1916
F82.36021.35952.64362.00993.91972.98542.1916

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 111.456 C1 C2 F7 109.295
C1 C2 F8 109.295 C2 C1 H3 111.456
C2 C1 Cl5 109.226 C2 C1 Cl6 109.226
H3 C1 Cl5 107.651 H3 C1 Cl6 107.651
H4 C2 F7 109.643 H4 C2 F8 109.643
Cl5 C1 Cl6 111.635 F7 C2 F8 107.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 C 0.358      
3 H 0.276      
4 H 0.178      
5 Cl 0.028      
6 Cl 0.028      
7 F -0.272      
8 F -0.272      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.070 -0.344 0.000 0.351
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.859 -1.170 0.000
y -1.170 -51.529 0.000
z 0.000 0.000 -50.064
Traceless
 xyz
x 6.937 -1.170 0.000
y -1.170 -4.567 0.000
z 0.000 0.000 -2.370
Polar
3z2-r2-4.740
x2-y27.670
xy-1.170
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.803 0.132 0.000
y 0.132 7.222 0.000
z 0.000 0.000 8.816


<r2> (average value of r2) Å2
<r2> 243.958
(<r2>)1/2 15.619