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: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-1183.410896
Energy at 298.15K-1183.413515
HF Energy-1183.410896
Nuclear repulsion energy358.531758
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 BLYP/STO-3G
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 2918 1.40      
2 A' 3130 2896 17.74      
3 A' 1347 1246 9.72      
4 A' 1224 1133 26.91      
5 A' 1089 1007 40.79      
6 A' 927 858 14.37      
7 A' 758 701 33.00      
8 A' 510 472 8.28      
9 A' 347 321 5.89      
10 A' 298 275 10.47      
11 A' 209 193 2.86      
12 A" 1349 1248 11.87      
13 A" 1254 1160 24.74      
14 A" 1149 1063 37.98      
15 A" 828 766 111.30      
16 A" 347 321 1.08      
17 A" 131 121 0.28      
18 A" 27 25 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 9037.8 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 8361.8 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 BLYP/STO-3G
ABC
0.07422 0.06297 0.03522

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.404 -0.246 0.000
C2 -0.392 1.194 0.000
H3 1.520 -0.066 0.000
H4 -1.508 1.014 0.000
Cl5 -0.002 -1.206 1.551
Cl6 -0.002 -1.206 -1.551
F7 -0.002 1.910 1.156
F8 -0.002 1.910 -1.156

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.64521.13102.28951.86871.86872.47982.4798
C21.64522.28951.13102.88452.88451.41461.4146
H31.13102.28953.21492.45412.45412.74862.7486
H42.28951.13103.21493.09903.09902.10002.1000
Cl51.86872.88452.45413.09903.10193.14154.1279
Cl61.86872.88452.45413.09903.10194.12793.1415
F72.47981.41462.74862.10003.14154.12792.3117
F82.47981.41462.74862.10004.12793.14152.3117

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 109.728 C1 C2 F7 108.043
C1 C2 F8 108.043 C2 C1 H3 109.728
C2 C1 Cl5 110.185 C2 C1 Cl6 110.185
H3 C1 Cl5 107.222 H3 C1 Cl6 107.222
H4 C2 F7 110.677 H4 C2 F8 110.677
Cl5 C1 Cl6 112.192 F7 C2 F8 109.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.016      
2 C 0.129      
3 H 0.127      
4 H 0.088      
5 Cl -0.110      
6 Cl -0.110      
7 F -0.055      
8 F -0.055      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.305 1.735 0.000 1.761
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.467 -0.719 0.000
y -0.719 -45.250 0.000
z 0.000 0.000 -46.721
Traceless
 xyz
x 5.519 -0.719 0.000
y -0.719 -1.656 0.000
z 0.000 0.000 -3.863
Polar
3z2-r2-7.726
x2-y24.783
xy-0.719
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.945 0.261 0.000
y 0.261 3.745 0.000
z 0.000 0.000 5.346


<r2> (average value of r2) Å2
<r2> 265.000
(<r2>)1/2 16.279