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: B2PLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-1197.018478
Energy at 298.15K-1197.021960
HF Energy-1196.657242
Nuclear repulsion energy378.928377
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 B2PLYP/6-31G(2df,p)
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' 3153 3011 8.40      
2 A' 3140 2999 12.35      
3 A' 1424 1360 35.37      
4 A' 1262 1206 2.14      
5 A' 1150 1098 113.07      
6 A' 1086 1037 16.53      
7 A' 802 766 29.97      
8 A' 578 552 7.42      
9 A' 398 380 12.98      
10 A' 342 326 9.34      
11 A' 249 237 0.25      
12 A" 1401 1338 10.29      
13 A" 1246 1190 19.14      
14 A" 1164 1112 138.10      
15 A" 824 787 128.86      
16 A" 398 380 1.82      
17 A" 180 172 0.98      
18 A" 75 71 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 9435.8 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 9011.2 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 B2PLYP/6-31G(2df,p)
ABC
0.08272 0.07076 0.03949

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.403 -0.225 0.000
C2 -0.361 1.101 0.000
H3 1.479 -0.055 0.000
H4 -1.438 0.931 0.000
Cl5 -0.006 -1.137 1.470
Cl6 -0.006 -1.137 -1.470
F7 -0.006 1.807 1.090
F8 -0.006 1.807 -1.090

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.53081.09012.17331.77691.77692.34182.3418
C21.53082.17331.09012.70102.70101.34611.3461
H31.09012.17333.07892.35292.35292.61872.6187
H42.17331.09013.07892.91292.91292.00162.0016
Cl51.77692.70102.35292.91292.93952.96783.9008
Cl61.77692.70102.35292.91292.93953.90082.9678
F72.34181.34612.61872.00162.96783.90082.1799
F82.34181.34612.61872.00163.90082.96782.1799

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 110.919 C1 C2 F7 108.809
C1 C2 F8 108.809 C2 C1 H3 110.919
C2 C1 Cl5 109.263 C2 C1 Cl6 109.263
H3 C1 Cl5 107.892 H3 C1 Cl6 107.892
H4 C2 F7 110.049 H4 C2 F8 110.049
Cl5 C1 Cl6 111.609 F7 C2 F8 108.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.099      
2 C 0.219      
3 H 0.203      
4 H 0.126      
5 Cl -0.101      
6 Cl -0.101      
7 F -0.124      
8 F -0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.014 0.061 0.000 0.062
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.571 -0.881 0.000
y -0.881 -49.887 0.000
z 0.000 0.000 -49.071
Traceless
 xyz
x 5.908 -0.881 0.000
y -0.881 -3.566 0.000
z 0.000 0.000 -2.342
Polar
3z2-r2-4.683
x2-y26.316
xy-0.881
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.411 0.101 0.000
y 0.101 6.811 0.000
z 0.000 0.000 8.342


<r2> (average value of r2) Å2
<r2> 241.656
(<r2>)1/2 15.545