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: B3LYPultrafine/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at B3LYPultrafine/6-31G**
 hartrees
Energy at 0K-1197.473077
Energy at 298.15K-1197.476476
HF Energy-1197.473077
Nuclear repulsion energy373.237916
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 B3LYPultrafine/6-31G**
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 3131 3008 0.00      
2 Ag 1415 1359 0.00      
3 Ag 1322 1270 0.00      
4 Ag 1133 1089 0.00      
5 Ag 1085 1042 0.00      
6 Ag 807 775 0.00      
7 Ag 516 496 0.00      
8 Ag 365 351 0.00      
9 Ag 267 257 0.00      
10 Au 3142 3018 14.70      
11 Au 1337 1284 25.74      
12 Au 1241 1192 43.26      
13 Au 1148 1103 246.60      
14 Au 746 717 242.25      
15 Au 393 378 2.22      
16 Au 369 354 29.70      
17 Au 171 164 1.50      
18 Au 75 72 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 9329.7 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 8964.0 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 B3LYPultrafine/6-31G**
ABC
0.13357 0.04822 0.03659

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G**

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.765
C2 0.000 0.000 0.765
H3 1.016 0.000 -1.163
H4 -1.016 0.000 1.163
F5 -0.685 -1.085 -1.210
F6 0.685 1.085 1.210
Cl7 -0.811 1.495 -1.357
Cl8 0.811 -1.495 1.357

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52961.09152.17911.35832.35541.80122.7195
C21.52962.17911.09152.35541.35832.71951.8012
H31.09152.17913.08872.01852.63042.36932.9371
H42.17911.09153.08872.63042.01852.93712.3693
F51.35832.35542.01852.63043.52792.58742.9998
F62.35541.35832.63042.01853.52792.99982.5874
Cl71.80122.71952.36932.93712.58742.99984.3520
Cl82.71951.80122.93712.36932.99982.58744.3520

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 111.385 C1 C2 F6 109.150
C1 C2 Cl8 109.191 C2 C1 H3 111.385
C2 C1 F5 109.150 C2 C1 Cl7 109.191
H3 C1 F5 110.490 H3 C1 Cl7 107.432
H4 C2 F6 110.490 H4 C2 Cl8 107.432
F5 C1 Cl7 109.147 F6 C2 Cl8 109.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.112      
2 C 0.112      
3 H 0.172      
4 H 0.172      
5 F -0.253      
6 F -0.253      
7 Cl -0.031      
8 Cl -0.031      


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 -46.093 -0.349 -3.541
y -0.349 -49.375 0.014
z -3.541 0.014 -47.914
Traceless
 xyz
x 2.552 -0.349 -3.541
y -0.349 -2.372 0.014
z -3.541 0.014 -0.180
Polar
3z2-r2-0.360
x2-y23.282
xy-0.349
xz-3.541
yz0.014


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.352 -1.475 0.933
y -1.475 7.751 -1.722
z 0.933 -1.722 5.924


<r2> (average value of r2) Å2
<r2> 258.642
(<r2>)1/2 16.082