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: LSDA/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at LSDA/cc-pVDZ
 hartrees
Energy at 0K-1193.896432
Energy at 298.15K-1193.899780
HF Energy-1193.896432
Nuclear repulsion energy377.715196
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 LSDA/cc-pVDZ
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 3008 2975 0.00      
2 Ag 1342 1328 0.00      
3 Ag 1215 1202 0.00      
4 Ag 1130 1117 0.00      
5 Ag 1081 1069 0.00      
6 Ag 797 788 0.00      
7 Ag 514 508 0.00      
8 Ag 366 362 0.00      
9 Ag 264 261 0.00      
10 Au 3020 2987 11.86      
11 Au 1243 1230 29.74      
12 Au 1164 1151 217.04      
13 Au 1138 1126 58.10      
14 Au 764 756 220.87      
15 Au 393 389 2.08      
16 Au 347 343 25.31      
17 Au 164 163 1.16      
18 Au 69 68 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 9009.3 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 8910.2 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 LSDA/cc-pVDZ
ABC
0.13494 0.04995 0.03769

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

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.756
C2 0.000 0.000 0.756
H3 1.041 0.000 -1.148
H4 -1.041 0.000 1.148
F5 -0.678 -1.071 -1.206
F6 0.678 1.071 1.206
Cl7 -0.789 1.492 -1.315
Cl8 0.789 -1.492 1.315

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.51201.11222.17021.34522.33591.77742.6710
C21.51202.17021.11222.33591.34522.67101.7774
H31.11222.17023.09962.02612.61182.36642.8904
H42.17021.11223.09962.61182.02612.89042.3664
F51.34522.33592.02612.61183.49942.56712.9467
F62.33591.34522.61182.02613.49942.94672.5671
Cl71.77742.67102.36642.89042.56712.94674.2779
Cl82.67101.77742.89042.36642.94672.56714.2779

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 110.662 C1 C2 F6 109.546
C1 C2 Cl8 108.315 C2 C1 H3 110.662
C2 C1 F5 109.546 C2 C1 Cl7 108.315
H3 C1 F5 110.720 H3 C1 Cl7 107.726
H4 C2 F6 110.720 H4 C2 Cl8 107.726
F5 C1 Cl7 109.821 F6 C2 Cl8 109.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.042      
2 C 0.042      
3 H 0.116      
4 H 0.116      
5 F -0.109      
6 F -0.109      
7 Cl -0.049      
8 Cl -0.049      


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 -45.870 -0.481 -3.022
y -0.481 -48.685 -0.248
z -3.022 -0.248 -47.600
Traceless
 xyz
x 2.272 -0.481 -3.022
y -0.481 -1.950 -0.248
z -3.022 -0.248 -0.322
Polar
3z2-r2-0.644
x2-y22.815
xy-0.481
xz-3.022
yz-0.248


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.349 -1.457 0.773
y -1.457 7.782 -1.682
z 0.773 -1.682 6.004


<r2> (average value of r2) Å2
<r2> 251.920
(<r2>)1/2 15.872