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: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-1197.326839
Energy at 298.15K-1197.330251
HF Energy-1197.326839
Nuclear repulsion energy374.594906
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/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 3120 3011 0.00      
2 Ag 1391 1342 0.00      
3 Ag 1282 1237 0.00      
4 Ag 1135 1096 0.00      
5 Ag 1081 1043 0.00      
6 Ag 813 784 0.00      
7 Ag 516 498 0.00      
8 Ag 369 357 0.00      
9 Ag 267 258 0.00      
10 Au 3131 3022 12.26      
11 Au 1303 1258 19.52      
12 Au 1205 1163 36.99      
13 Au 1144 1104 276.27      
14 Au 763 737 232.29      
15 Au 398 384 2.08      
16 Au 363 350 27.52      
17 Au 169 163 1.26      
18 Au 70 67 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 9260.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8936.5 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/cc-pVDZ
ABC
0.13384 0.04874 0.03690

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

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.764
C2 0.000 0.000 0.764
H3 1.025 0.000 -1.162
H4 -1.025 0.000 1.162
F5 -0.676 -1.085 -1.214
F6 0.676 1.085 1.214
Cl7 -0.806 1.484 -1.352
Cl8 0.806 -1.484 1.352

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52721.09942.18101.35532.35451.78882.7073
C21.52722.18101.09942.35451.35532.70731.7888
H31.09942.18103.09812.01802.63462.36492.9274
H42.18101.09943.09812.63462.01802.92742.3649
F51.35532.35452.01802.63463.52542.57672.9897
F62.35451.35532.63462.01803.52542.98972.5767
Cl71.78882.70732.36492.92742.57672.98974.3273
Cl82.70731.78882.92742.36492.98972.57674.3273

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 111.223 C1 C2 F6 109.393
C1 C2 Cl8 109.207 C2 C1 H3 111.223
C2 C1 F5 109.393 C2 C1 Cl7 109.207
H3 C1 F5 110.154 H3 C1 Cl7 107.521
H4 C2 F6 110.154 H4 C2 Cl8 107.521
F5 C1 Cl7 109.301 F6 C2 Cl8 109.301
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.147      
2 C 0.147      
3 H 0.102      
4 H 0.102      
5 F -0.172      
6 F -0.172      
7 Cl -0.077      
8 Cl -0.077      


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 -45.846 -0.587 -3.435
y -0.587 -49.090 -0.359
z -3.435 -0.359 -47.772
Traceless
 xyz
x 2.585 -0.587 -3.435
y -0.587 -2.281 -0.359
z -3.435 -0.359 -0.304
Polar
3z2-r2-0.608
x2-y23.244
xy-0.587
xz-3.435
yz-0.359


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.196 -1.451 0.853
y -1.451 7.595 -1.648
z 0.853 -1.648 5.832


<r2> (average value of r2) Å2
<r2> 256.607
(<r2>)1/2 16.019