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: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-1914.908784
Energy at 298.15K 
HF Energy-1914.908784
Nuclear repulsion energy532.193477
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 HF/aug-cc-pVDZ
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' 3273 2981 6.88 80.87 0.05 0.09
2 A' 1571 1430 5.95 4.63 0.71 0.83
3 A' 1427 1299 16.81 4.06 0.49 0.65
4 A' 1172 1067 9.26 3.98 0.52 0.69
5 A' 902 822 60.06 28.14 0.53 0.70
6 A' 810 738 119.58 4.53 0.12 0.21
7 A' 594 541 19.81 14.94 0.05 0.10
8 A' 410 373 2.04 10.95 0.12 0.21
9 A' 330 301 0.73 3.00 0.70 0.83
10 A' 259 236 0.03 1.93 0.53 0.69
11 A' 164 149 0.59 0.53 0.55 0.71
12 A" 3351 3051 0.15 39.92 0.75 0.86
13 A" 1326 1207 15.15 2.20 0.75 0.86
14 A" 1056 962 51.83 2.06 0.75 0.86
15 A" 805 733 79.45 9.58 0.75 0.86
16 A" 357 325 1.11 1.58 0.75 0.86
17 A" 263 240 1.05 0.98 0.75 0.86
18 A" 117 106 1.39 0.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9092.5 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 8279.6 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 HF/aug-cc-pVDZ
ABC
0.06186 0.03621 0.03434

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.266 0.281 0.000
C2 -1.261 0.372 0.000
Cl3 -2.072 -1.214 0.000
Cl4 0.870 1.964 0.000
Cl5 0.870 -0.543 1.451
Cl6 0.870 -0.543 -1.451
H7 -1.575 0.902 0.890
H8 -1.575 0.902 -0.890

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.52912.77461.78851.77501.77502.13682.1368
C21.52911.78152.65962.73552.73551.08281.0828
Cl32.77461.78154.33053.34803.34802.34902.3490
Cl41.78852.65964.33052.89722.89722.81002.8100
Cl51.77502.73553.34802.89722.90292.89463.6808
Cl61.77502.73553.34802.89722.90293.68082.8946
H72.13681.08282.34902.81002.89463.68081.7810
H82.13681.08282.34902.81003.68082.89461.7810

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 113.658 C1 C2 H7 108.586
C1 C2 H8 108.586 C2 C1 Cl4 106.313
C2 C1 Cl5 111.557 C2 C1 Cl6 111.557
Cl3 C2 H7 107.680 Cl3 C2 H8 107.680
Cl4 C1 Cl5 108.784 Cl4 C1 Cl6 108.784
Cl5 C1 Cl6 109.719 H7 C2 H8 110.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.860      
2 C 0.435      
3 Cl -0.051      
4 Cl 0.082      
5 Cl 0.077      
6 Cl 0.077      
7 H 0.120      
8 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.753 1.380 0.000 1.572
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -64.172 -3.139 0.000
y -3.139 -63.109 0.000
z 0.000 0.000 -62.567
Traceless
 xyz
x -1.334 -3.139 0.000
y -3.139 0.261 0.000
z 0.000 0.000 1.073
Polar
3z2-r22.147
x2-y2-1.063
xy-3.139
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.789 1.122 0.000
y 1.122 12.010 0.000
z 0.000 0.000 10.865


<r2> (average value of r2) Å2
<r2> 342.811
(<r2>)1/2 18.515