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: PBEPBEultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-1196.852349
Energy at 298.15K-1196.855648
HF Energy-1196.852349
Nuclear repulsion energy374.735266
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 PBEPBEultrafine/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3039 3021 9.38      
2 A' 3026 3008 15.56      
3 A' 1335 1327 34.29      
4 A' 1187 1180 1.06      
5 A' 1086 1079 116.02      
6 A' 1034 1028 25.69      
7 A' 760 756 33.95      
8 A' 550 547 6.43      
9 A' 380 378 12.03      
10 A' 328 326 10.04      
11 A' 240 239 0.38      
12 A" 1296 1289 12.79      
13 A" 1165 1158 14.30      
14 A" 1085 1079 155.12      
15 A" 764 760 149.31      
16 A" 376 373 2.86      
17 A" 171 170 1.05      
18 A" 69 69 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 8945.2 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 8893.4 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 PBEPBEultrafine/cc-pVDZ
ABC
0.08095 0.06927 0.03865

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.402 -0.226 0.000
C2 -0.366 1.107 0.000
H3 1.498 -0.057 0.000
H4 -1.461 0.938 0.000
Cl5 -0.005 -1.149 1.484
Cl6 -0.005 -1.149 -1.484
F7 -0.005 1.827 1.106
F8 -0.005 1.827 -1.106

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.53851.10882.19741.79451.79452.36762.3676
C21.53852.19741.10882.72432.72431.36801.3680
H31.10882.19743.12242.37772.37772.65202.6520
H42.19741.10883.12242.94612.94612.03342.0334
Cl51.79452.72432.37772.94612.96863.00023.9453
Cl61.79452.72432.37772.94612.96863.94533.0002
F72.36761.36802.65202.03343.00023.94532.2112
F82.36761.36802.65202.03343.94533.00022.2112

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 111.171 C1 C2 F7 108.953
C1 C2 F8 108.953 C2 C1 H3 111.171
C2 C1 Cl5 109.410 C2 C1 Cl6 109.410
H3 C1 Cl5 107.612 H3 C1 Cl6 107.612
H4 C2 F7 109.924 H4 C2 F8 109.924
Cl5 C1 Cl6 111.616 F7 C2 F8 107.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.214      
2 C 0.403      
3 H 0.129      
4 H 0.039      
5 Cl -0.023      
6 Cl -0.023      
7 F -0.155      
8 F -0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.006 -0.027 0.000 0.027
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.662 -0.756 0.000
y -0.756 -49.762 0.000
z 0.000 0.000 -48.688
Traceless
 xyz
x 5.563 -0.756 0.000
y -0.756 -3.587 0.000
z 0.000 0.000 -1.975
Polar
3z2-r2-3.951
x2-y26.100
xy-0.756
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.753 0.110 0.000
y 0.110 6.202 0.000
z 0.000 0.000 8.066


<r2> (average value of r2) Å2
<r2> 246.175
(<r2>)1/2 15.690