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/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-1916.244278
Energy at 298.15K 
HF Energy-1914.978856
Nuclear repulsion energy537.342282
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/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3146 2987 5.55 87.92 0.05 0.10
2 A' 1474 1400 6.86 5.29 0.74 0.85
3 A' 1316 1249 8.50 2.04 0.73 0.85
4 A' 1109 1053 10.69 1.35 0.33 0.50
5 A' 855 812 37.16 16.78 0.46 0.63
6 A' 796 756 108.48 1.14 0.02 0.03
7 A' 569 540 14.90 8.07 0.07 0.14
8 A' 393 373 1.48 7.51 0.15 0.26
9 A' 315 299 0.87 2.87 0.75 0.86
10 A' 246 233 0.04 2.52 0.70 0.82
11 A' 156 148 0.51 0.53 0.65 0.79
12 A" 3203 3041 0.21 45.72 0.75 0.86
13 A" 1241 1179 10.31 2.32 0.75 0.86
14 A" 988 938 50.62 1.18 0.75 0.86
15 A" 756 718 74.54 4.21 0.75 0.86
16 A" 339 322 0.68 2.14 0.75 0.86
17 A" 250 238 0.71 1.55 0.75 0.86
18 A" 119 113 0.91 1.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8636.1 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 8199.1 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/cc-pVTZ
ABC
0.06282 0.03718 0.03511

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.266 0.284 0.000
C2 -1.247 0.367 0.000
Cl3 -2.020 -1.216 0.000
Cl4 0.850 1.960 0.000
Cl5 0.850 -0.540 1.444
Cl6 0.850 -0.540 -1.444
H7 -1.555 0.902 0.889
H8 -1.555 0.902 -0.889

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.51562.73391.77541.76231.76232.11882.1188
C21.51561.76162.63362.70342.70341.08201.0820
Cl32.73391.76164.28063.28343.28342.34302.3430
Cl41.77542.63364.28062.88752.88752.77412.7741
Cl51.76232.70343.28342.88752.88872.85893.6481
Cl61.76232.70343.28342.88752.88873.64812.8589
H72.11881.08202.34302.77412.85893.64811.7778
H82.11881.08202.34302.77413.64812.85891.7778

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 112.859 C1 C2 H7 108.150
C1 C2 H8 108.150 C2 C1 Cl4 106.039
C2 C1 Cl5 110.900 C2 C1 Cl6 110.900
Cl3 C2 H7 108.603 Cl3 C2 H8 108.603
Cl4 C1 Cl5 109.413 Cl4 C1 Cl6 109.413
Cl5 C1 Cl6 110.083 H7 C2 H8 110.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability