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 CHFClCHClF (ethane, 1,2-dichloro-1,2-difluoro-)

using model chemistry: BLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-1197.581923
Energy at 298.15K-1197.585120
HF Energy-1197.581923
Nuclear repulsion energy369.539129
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/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 Ag 3037 3028 0.00      
2 Ag 1343 1339 0.00      
3 Ag 1246 1242 0.00      
4 Ag 1047 1044 0.00      
5 Ag 1009 1006 0.00      
6 Ag 745 742 0.00      
7 Ag 490 488 0.00      
8 Ag 342 341 0.00      
9 Ag 252 251 0.00      
10 Au 3049 3040 10.22      
11 Au 1275 1271 6.55      
12 Au 1179 1175 36.10      
13 Au 1042 1039 242.59      
14 Au 688 686 242.70      
15 Au 373 372 1.24      
16 Au 357 356 25.16      
17 Au 163 163 0.88      
18 Au 64 64 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 8850.3 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 8823.7 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 BLYP/cc-pVTZ
ABC
0.13064 0.04732 0.03586

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

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.768
C2 0.000 0.000 0.768
H3 1.013 0.000 -1.179
H4 -1.013 0.000 1.179
F5 -0.691 -1.098 -1.226
F6 0.691 1.098 1.226
Cl7 -0.825 1.508 -1.368
Cl8 0.825 -1.508 1.368

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53651.09292.19501.37572.37911.82092.7419
C21.53652.19501.09292.37911.37572.74191.8209
H31.09292.19503.10872.02722.66362.38532.9658
H42.19501.09293.10872.66362.02722.96582.3853
F51.37572.37912.02722.66363.57002.61403.0320
F62.37911.37572.66362.02723.57003.03202.6140
Cl71.82092.74192.38532.96582.61403.03204.3940
Cl82.74191.82092.96582.38533.03202.61404.3940

picture of ethane, 1,2-dichloro-1,2-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 112.083 C1 C2 F6 109.436
C1 C2 Cl8 109.217 C2 C1 H3 112.083
C2 C1 F5 109.436 C2 C1 Cl7 109.217
H3 C1 F5 109.879 H3 C1 Cl7 107.234
H4 C2 F6 109.879 H4 C2 Cl8 107.234
F5 C1 Cl7 108.920 F6 C2 Cl8 108.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.189      
2 C 0.189      
3 H 0.101      
4 H 0.101      
5 F -0.169      
6 F -0.169      
7 Cl -0.121      
8 Cl -0.121      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.754 -0.696 -3.425
y -0.696 -49.955 -0.469
z -3.425 -0.469 -48.454
Traceless
 xyz
x 2.450 -0.696 -3.425
y -0.696 -2.351 -0.469
z -3.425 -0.469 -0.099
Polar
3z2-r2-0.199
x2-y23.201
xy-0.696
xz-3.425
yz-0.469


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.490 -1.495 1.041
y -1.495 9.162 -1.821
z 1.041 -1.821 7.466


<r2> (average value of r2) Å2
<r2> 263.601
(<r2>)1/2 16.236