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 CH2ClCCl3 (1,1,1,2-tetrachloroethane)

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.050897
HF Energy-0.050897
Nuclear repulsion energy172.941091
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 PM3
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' 3055 2976 14.75 96.07 0.14 0.25
2 A' 1359 1324 7.85 26.86 0.62 0.77
3 A' 1264 1231 2.75 74.39 0.25 0.40
4 A' 1150 1120 5.77 9.83 0.18 0.30
5 A' 759 740 22.59 126.41 0.57 0.73
6 A' 691 673 56.68 2.71 0.36 0.53
7 A' 535 521 10.25 41.24 0.06 0.12
8 A' 357 348 1.90 23.41 0.40 0.57
9 A' 289 281 1.84 13.03 0.70 0.82
10 A' 210 204 0.68 11.31 0.65 0.79
11 A' 129 125 0.58 1.30 0.60 0.75
12 A" 2999 2921 16.79 81.53 0.75 0.86
13 A" 1082 1054 11.33 18.60 0.75 0.86
14 A" 935 910 29.76 12.55 0.75 0.86
15 A" 631 615 50.34 49.05 0.75 0.86
16 A" 313 305 0.47 6.54 0.75 0.86
17 A" 217 211 1.25 6.51 0.75 0.86
18 A" 43 42 0.83 3.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8007.2 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 7799.0 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 PM3
ABC
0.06602 0.03815 0.03561

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.206 0.327 0.000
C2 -1.299 0.338 0.000
Cl3 -1.890 -1.328 0.000
Cl4 0.825 1.975 0.000
Cl5 0.825 -0.492 1.424
Cl6 0.825 -0.492 -1.424
H7 -1.689 0.864 0.891
H8 -1.689 0.864 -0.891

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.50592.67091.76061.75531.75532.16222.1622
C21.50591.76762.68202.68882.68881.10541.1054
Cl32.67091.76764.27583.17763.17762.37482.3748
Cl41.76062.68204.27582.84882.84882.88932.8893
Cl51.75532.68883.17762.84882.84802.90593.6766
Cl61.75532.68883.17762.84882.84803.67662.9059
H72.16221.10542.37482.88932.90593.67661.7813
H82.16221.10542.37482.88933.67662.90591.7813

picture of 1,1,1,2-tetrachloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl3 109.091 C1 C2 H7 110.856
C1 C2 H8 110.856 C2 C1 Cl4 110.142
C2 C1 Cl5 110.842 C2 C1 Cl6 110.842
Cl3 C2 H7 109.322 Cl3 C2 H8 109.322
Cl4 C1 Cl5 108.243 Cl4 C1 Cl6 108.243
Cl5 C1 Cl6 108.442 H7 C2 H8 107.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability