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All results from a given calculation for C2Cl6 (hexachloroethane)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-2820.720192
Energy at 298.15K-2820.720883
HF Energy-2819.645704
Nuclear repulsion energy1008.273687
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 QCISD/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 949 912 0.00      
2 A1g 421 404 0.00      
3 A1g 224 216 0.00      
4 A1u 85 82 0.00      
5 A2u 681 655 38.68      
6 A2u 375 361 0.72      
7 Eg 858 824 0.00      
7 Eg 858 824 0.00      
8 Eg 343 330 0.00      
8 Eg 343 330 0.00      
9 Eg 228 219 0.00      
9 Eg 228 219 0.00      
10 Eu 769 739 146.74      
10 Eu 769 739 146.74      
11 Eu 281 270 0.19      
11 Eu 281 270 0.19      
12 Eu 168 161 0.40      
12 Eu 168 161 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 4013.8 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 3857.7 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 QCISD/3-21G*
ABC
0.02815 0.02324 0.02324

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.793
C2 0.000 0.000 -0.793
Cl3 0.000 1.689 1.399
Cl4 -1.463 -0.845 1.399
Cl5 1.463 -0.845 1.399
Cl6 0.000 -1.689 -1.399
Cl7 -1.463 0.845 -1.399
Cl8 1.463 0.845 -1.399

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 Cl7 Cl8
C11.58661.79481.79481.79482.76812.76812.7681
C21.58662.76812.76812.76811.79481.79481.7948
Cl31.79482.76812.92622.92624.38753.26923.2692
Cl41.79482.76812.92622.92623.26923.26924.3875
Cl51.79482.76812.92622.92623.26924.38753.2692
Cl62.76811.79484.38753.26923.26922.92622.9262
Cl72.76811.79483.26923.26924.38752.92622.9262
Cl82.76811.79483.26924.38753.26922.92622.9262

picture of hexachloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 109.736 C1 C2 Cl7 109.736
C1 C2 Cl8 109.736 C2 C1 Cl3 109.736
C2 C1 Cl4 109.736 C2 C1 Cl5 109.736
Cl3 C1 Cl4 109.205 Cl3 C1 Cl5 109.205
Cl4 C1 Cl5 109.205 Cl6 C2 Cl7 109.205
Cl6 C2 Cl8 109.205 Cl7 C2 Cl8 109.205
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability