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

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-1197.430079
Energy at 298.15K-1197.433537
HF Energy-1197.430079
Nuclear repulsion energy376.233364
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 B3PW91/TZVP
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 3126 3015 0.10      
2 A 1400 1350 8.52      
3 A 1296 1250 7.74      
4 A 1125 1085 192.70      
5 A 1063 1025 104.89      
6 A 825 795 102.18      
7 A 457 440 2.08      
8 A 312 301 1.33      
9 A 165 159 0.69      
10 A 74 72 0.65      
11 B 3139 3027 9.03      
12 B 1349 1301 5.62      
13 B 1233 1189 27.01      
14 B 1085 1047 32.84      
15 B 817 788 101.77      
16 B 435 420 13.34      
17 B 388 374 8.04      
18 B 327 316 11.35      

Unscaled Zero Point Vibrational Energy (zpe) 9309.0 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 8976.6 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 B3PW91/TZVP
ABC
0.09736 0.06005 0.03866

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.218 0.733 0.404
C2 0.218 -0.733 0.404
H3 -1.302 0.827 0.343
H4 1.302 -0.827 0.343
F5 0.218 1.303 1.556
F6 -0.218 -1.303 1.556
Cl7 0.491 1.598 -0.987
Cl8 -0.491 -1.598 -0.987

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52871.08962.17891.35842.33971.78482.7276
C21.52872.17891.08962.33971.35842.72761.7848
H31.08962.17893.08512.00262.68062.36182.8824
H42.17891.08963.08512.68062.00262.88242.3618
F51.35842.33972.00262.68062.64332.57443.9230
F62.33971.35842.68062.00262.64333.92302.5744
Cl71.78482.72762.36182.88242.57443.92303.3440
Cl82.72761.78482.88242.36183.92302.57443.3440

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 111.543 C1 C2 F6 108.121
C1 C2 Cl8 110.573 C2 C1 H3 111.543
C2 C1 F5 108.121 C2 C1 Cl7 110.573
H3 C1 F5 109.292 H3 C1 Cl7 108.055
H4 C2 F6 109.292 H4 C2 Cl8 108.055
F5 C1 Cl7 109.229 F6 C2 Cl8 109.229
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.042      
2 C 0.042      
3 H 0.181      
4 H 0.181      
5 F -0.161      
6 F -0.161      
7 Cl -0.062      
8 Cl -0.062      


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 -0.475 0.475
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.470 -2.489 0.000
y -2.489 -50.087 0.000
z 0.000 0.000 -50.484
Traceless
 xyz
x 5.815 -2.489 0.000
y -2.489 -2.610 0.000
z 0.000 0.000 -3.205
Polar
3z2-r2-6.410
x2-y25.616
xy-2.489
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.609 0.759 0.000
y 0.759 6.996 0.000
z 0.000 0.000 7.607


<r2> (average value of r2) Å2
<r2> 247.341
(<r2>)1/2 15.727