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: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-1196.790293
Energy at 298.15K-1196.793606
HF Energy-1196.790293
Nuclear repulsion energy375.068921
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 PBEPBE/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' 3065 3021 8.69      
2 A' 3049 3005 19.44      
3 A' 1372 1352 31.19      
4 A' 1223 1205 0.78      
5 A' 1099 1084 120.64      
6 A' 1047 1032 14.73      
7 A' 769 758 34.61      
8 A' 549 541 7.04      
9 A' 382 377 13.31      
10 A' 334 329 9.64      
11 A' 244 240 0.52      
12 A" 1351 1331 14.23      
13 A" 1226 1209 20.68      
14 A" 1111 1095 138.54      
15 A" 768 757 157.04      
16 A" 378 372 3.33      
17 A" 174 172 1.06      
18 A" 73 72 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 9105.9 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 8975.7 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 PBEPBE/6-31G*
ABC
0.08084 0.06958 0.03871

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.399 -0.227 0.000
C2 -0.367 1.110 0.000
H3 1.488 -0.057 0.000
H4 -1.456 0.941 0.000
Cl5 -0.004 -1.147 1.485
Cl6 -0.004 -1.147 -1.485
F7 -0.004 1.822 1.108
F8 -0.004 1.822 -1.108

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.54061.10182.19141.79301.79302.36362.3636
C21.54062.19141.10182.72582.72581.36571.3657
H31.10182.19143.10792.37042.37042.64282.6428
H42.19141.10183.10792.94432.94432.02732.0273
Cl51.79302.72582.37042.94432.97032.99263.9415
Cl61.79302.72582.37042.94432.97033.94152.9926
F72.36361.36572.64282.02732.99263.94152.2153
F82.36361.36572.64282.02733.94152.99262.2153

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 110.967 C1 C2 F7 108.680
C1 C2 F8 108.680 C2 C1 H3 110.967
C2 C1 Cl5 109.474 C2 C1 Cl6 109.474
H3 C1 Cl5 107.530 H3 C1 Cl6 107.530
H4 C2 F7 110.028 H4 C2 F8 110.028
Cl5 C1 Cl6 111.848 F7 C2 F8 108.399
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.440      
2 C 0.424      
3 H 0.266      
4 H 0.165      
5 Cl 0.025      
6 Cl 0.025      
7 F -0.232      
8 F -0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.071 0.239 0.000 0.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.616 -0.811 0.000
y -0.811 -49.578 0.000
z 0.000 0.000 -48.960
Traceless
 xyz
x 5.653 -0.811 0.000
y -0.811 -3.290 0.000
z 0.000 0.000 -2.363
Polar
3z2-r2-4.725
x2-y25.962
xy-0.811
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.737 0.126 0.000
y 0.126 6.276 0.000
z 0.000 0.000 8.080


<r2> (average value of r2) Å2
<r2> 245.816
(<r2>)1/2 15.679