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/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-1916.294667
Energy at 298.15K 
HF Energy-1914.981282
Nuclear repulsion energy538.520815
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/aug-cc-pVTZ
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' 3138 2986 5.63 89.18 0.04 0.07
2 A' 1480 1409 7.86 4.35 0.73 0.84
3 A' 1317 1253 7.48 2.62 0.49 0.66
4 A' 1118 1064 8.69 1.60 0.42 0.59
5 A' 858 817 38.21 18.71 0.45 0.62
6 A' 799 760 101.47 2.27 0.07 0.12
7 A' 572 545 13.61 11.57 0.04 0.07
8 A' 395 376 1.33 8.45 0.10 0.18
9 A' 316 301 0.73 1.91 0.73 0.85
10 A' 247 235 0.02 1.60 0.58 0.74
11 A' 157 149 0.45 0.49 0.55 0.71
12 A" 3196 3041 0.64 39.57 0.75 0.86
13 A" 1250 1189 11.26 1.66 0.75 0.86
14 A" 989 941 46.10 1.21 0.75 0.86
15 A" 760 724 69.37 4.57 0.75 0.86
16 A" 342 325 0.77 1.18 0.75 0.86
17 A" 251 239 0.64 1.00 0.75 0.86
18 A" 115 110 0.87 0.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8650.4 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 8230.0 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 MP2=FULL/aug-cc-pVTZ
ABC
0.06315 0.03736 0.03527

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.263 0.285 0.000
C2 -1.245 0.367 0.000
Cl3 -2.011 -1.218 0.000
Cl4 0.847 1.958 0.000
Cl5 0.847 -0.538 1.441
Cl6 0.847 -0.538 -1.441
H7 -1.557 0.900 0.890
H8 -1.557 0.900 -0.890

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.51082.72641.77121.75921.75922.11752.1175
C21.51081.76002.62832.69662.69661.08381.0838
Cl32.72641.76004.27223.27213.27212.34242.3424
Cl41.77122.62834.27222.88172.88172.77262.7726
Cl51.75922.69663.27212.88172.88232.85463.6443
Cl61.75922.69663.27212.88172.88233.64432.8546
H72.11751.08382.34242.77262.85463.64431.7807
H82.11751.08382.34242.77263.64432.85461.7807

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 112.707 C1 C2 H7 108.269
C1 C2 H8 108.269 C2 C1 Cl4 106.145
C2 C1 Cl5 110.876 C2 C1 Cl6 110.876
Cl3 C2 H7 108.564 Cl3 C2 H8 108.564
Cl4 C1 Cl5 109.424 Cl4 C1 Cl6 109.424
Cl5 C1 Cl6 110.010 H7 C2 H8 110.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability