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: B1B95/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/aug-cc-pVTZ
 hartrees
Energy at 0K-1197.677539
Energy at 298.15K-1197.681004
HF Energy-1197.677539
Nuclear repulsion energy380.714042
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 B1B95/aug-cc-pVTZ
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' 3149 3018 8.94      
2 A' 3136 3005 6.29      
3 A' 1408 1349 33.38      
4 A' 1255 1203 3.33      
5 A' 1146 1098 120.00      
6 A' 1082 1037 23.04      
7 A' 803 770 29.46      
8 A' 578 554 6.90      
9 A' 396 380 13.61      
10 A' 335 321 10.59      
11 A' 244 234 0.28      
12 A" 1360 1303 6.74      
13 A" 1234 1182 14.39      
14 A" 1138 1091 172.06      
15 A" 826 792 126.48      
16 A" 398 381 1.37      
17 A" 170 163 0.82      
18 A" 76 73 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 9365.2 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 8976.5 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 B1B95/aug-cc-pVTZ
ABC
0.08380 0.07129 0.03989

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.407 -0.229 0.000
C2 -0.356 1.086 0.000
H3 1.480 -0.062 0.000
H4 -1.429 0.920 0.000
Cl5 -0.007 -1.131 1.459
Cl6 -0.007 -1.131 -1.459
F7 -0.007 1.803 1.086
F8 -0.007 1.803 -1.086

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6 F7 F8
C11.52041.08592.16541.76431.76432.34112.3411
C21.52042.16541.08592.67712.67711.34761.3476
H31.08592.16543.07002.34122.34122.62112.6211
H42.16541.08593.07002.89062.89061.99591.9959
Cl51.76432.67712.34122.89062.91702.95803.8843
Cl61.76432.67712.34122.89062.91703.88432.9580
F72.34111.34762.62111.99592.95803.88432.1729
F82.34111.34762.62111.99593.88432.95802.1729

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 111.275 C1 C2 F7 109.281
C1 C2 F8 109.281 C2 C1 H3 111.275
C2 C1 Cl5 108.954 C2 C1 Cl6 108.954
H3 C1 Cl5 108.078 H3 C1 Cl6 108.078
H4 C2 F7 109.733 H4 C2 F8 109.733
Cl5 C1 Cl6 111.516 F7 C2 F8 107.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.050      
2 C 0.353      
3 H 0.258      
4 H 0.435      
5 Cl -0.208      
6 Cl -0.208      
7 F -0.340      
8 F -0.340      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.057 -0.367 0.000 0.372
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.672 -1.065 0.000
y -1.065 -50.780 0.000
z 0.000 0.000 -49.389
Traceless
 xyz
x 6.413 -1.065 0.000
y -1.065 -4.250 0.000
z 0.000 0.000 -2.163
Polar
3z2-r2-4.326
x2-y27.109
xy-1.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.803 0.065 0.000
y 0.065 8.258 0.000
z 0.000 0.000 9.647


<r2> (average value of r2) Å2
<r2> 239.793
(<r2>)1/2 15.485