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All results from a given calculation for CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: PBE1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBE1PBE/6-31+G**
 hartrees
Energy at 0K-1196.891392
Energy at 298.15K-1196.894883
HF Energy-1196.891392
Nuclear repulsion energy377.566499
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 PBE1PBE/6-31+G**
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 3152 3011 0.09      
2 A 1401 1339 8.22      
3 A 1304 1245 12.65      
4 A 1144 1093 175.71      
5 A 1086 1037 119.17      
6 A 848 810 97.22      
7 A 467 446 1.11      
8 A 312 299 1.23      
9 A 165 158 0.56      
10 A 78 74 0.66      
11 B 3164 3023 7.30      
12 B 1341 1281 7.59      
13 B 1245 1190 22.67      
14 B 1105 1055 31.68      
15 B 841 804 104.88      
16 B 435 416 11.15      
17 B 393 375 8.57      
18 B 334 320 12.29      

Unscaled Zero Point Vibrational Energy (zpe) 9407.5 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 8987.0 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 PBE1PBE/6-31+G**
ABC
0.09848 0.06040 0.03890

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.226 0.729 0.396
C2 0.226 -0.729 0.396
H3 -1.315 0.811 0.363
H4 1.315 -0.811 0.363
F5 0.226 1.296 1.550
F6 -0.226 -1.296 1.550
Cl7 0.451 1.606 -0.982
Cl8 -0.451 -1.606 -0.982

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52741.09262.17911.36212.33051.76802.7210
C21.52742.17911.09262.33051.36212.72101.7680
H31.09262.17913.08982.00472.65162.35812.8973
H42.17911.09263.08982.65162.00472.89732.3581
F51.36212.33052.00472.65162.63022.56043.9097
F62.33051.36212.65162.00472.63023.90972.5604
Cl71.76802.72102.35812.89732.56043.90973.3361
Cl82.72101.76802.89732.35813.90972.56043.3361

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 111.474 C1 C2 F6 107.379
C1 C2 Cl8 111.104 C2 C1 H3 111.474
C2 C1 F5 107.379 C2 C1 Cl7 111.104
H3 C1 F5 109.017 H3 C1 Cl7 108.735
H4 C2 F6 109.017 H4 C2 Cl8 108.735
F5 C1 Cl7 109.082 F6 C2 Cl8 109.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.097      
2 C -0.097      
3 H 0.232      
4 H 0.232      
5 F -0.220      
6 F -0.220      
7 Cl 0.084      
8 Cl 0.084      


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 -0.541 0.541
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.726 -2.470 0.000
y -2.470 -50.322 0.000
z 0.000 0.000 -50.849
Traceless
 xyz
x 5.860 -2.470 0.000
y -2.470 -2.534 0.000
z 0.000 0.000 -3.326
Polar
3z2-r2-6.652
x2-y25.596
xy-2.470
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.086 0.681 0.000
y 0.681 7.535 0.000
z 0.000 0.000 7.908


<r2> (average value of r2) Å2
<r2> 246.031
(<r2>)1/2 15.685