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: MP2=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/Def2TZVPP
 hartrees
Energy at 0K-1916.749927
Energy at 298.15K 
HF Energy-1914.950825
Nuclear repulsion energy537.446450
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 MP2=FULL/Def2TZVPP
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' 3130 3130 5.19 88.82 0.05 0.09
2 A' 1466 1466 6.61 5.51 0.71 0.83
3 A' 1313 1313 9.27 1.22 0.74 0.85
4 A' 1099 1099 10.35 1.52 0.42 0.59
5 A' 852 852 35.79 17.01 0.48 0.65
6 A' 794 794 109.87 1.05 0.02 0.04
7 A' 568 568 14.77 7.99 0.08 0.14
8 A' 392 392 1.43 7.36 0.16 0.27
9 A' 314 314 0.81 2.62 0.75 0.86
10 A' 245 245 0.03 2.24 0.69 0.81
11 A' 156 156 0.48 0.47 0.64 0.78
12 A" 3205 3205 0.24 45.28 0.75 0.86
13 A" 1239 1239 9.34 2.66 0.75 0.86
14 A" 982 982 49.07 0.79 0.75 0.86
15 A" 754 754 75.09 5.00 0.75 0.86
16 A" 339 339 0.70 1.83 0.75 0.86
17 A" 249 249 0.68 1.35 0.75 0.86
18 A" 116 116 0.91 1.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8605.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8605.8 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 MP2=FULL/Def2TZVPP
ABC
0.06288 0.03716 0.03512

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.268 0.283 0.000
C2 -1.251 0.367 0.000
Cl3 -2.022 -1.214 0.000
Cl4 0.851 1.958 0.000
Cl5 0.851 -0.540 1.443
Cl6 0.851 -0.540 -1.443
H7 -1.559 0.902 0.890
H8 -1.559 0.902 -0.890

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.52132.73671.77331.76041.76042.12452.1245
C21.52131.75922.63612.70542.70541.08371.0837
Cl32.73671.75924.28003.28483.28482.34262.3426
Cl41.77332.63614.28002.88492.88492.77722.7772
Cl51.76042.70543.28482.88492.88602.86183.6509
Cl61.76042.70543.28482.88492.88603.65092.8618
H72.12451.08372.34262.77722.86183.65091.7806
H82.12451.08372.34262.77723.65092.86181.7806

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 112.872 C1 C2 H7 108.112
C1 C2 H8 108.112 C2 C1 Cl4 106.034
C2 C1 Cl5 110.848 C2 C1 Cl6 110.848
Cl3 C2 H7 108.637 Cl3 C2 H8 108.637
Cl4 C1 Cl5 109.453 Cl4 C1 Cl6 109.453
Cl5 C1 Cl6 110.111 H7 C2 H8 110.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability