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: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-1909.321688
Energy at 298.15K 
HF Energy-1909.321688
Nuclear repulsion energy529.481645
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 wB97X-D/3-21G*
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' 3151 2986 3.12 77.04 0.08 0.15
2 A' 1524 1444 15.26 11.80 0.75 0.86
3 A' 1370 1298 3.12 3.66 0.72 0.84
4 A' 1047 992 11.12 2.42 0.19 0.32
5 A' 823 780 36.17 21.73 0.47 0.64
6 A' 756 716 119.08 0.45 0.03 0.06
7 A' 556 527 20.32 10.13 0.09 0.17
8 A' 386 366 1.84 11.35 0.18 0.30
9 A' 313 297 1.06 4.65 0.75 0.86
10 A' 245 232 0.14 3.54 0.71 0.83
11 A' 157 149 0.76 0.67 0.68 0.81
12 A" 3221 3053 1.95 55.30 0.75 0.86
13 A" 1300 1232 9.69 7.42 0.75 0.86
14 A" 998 946 53.31 2.34 0.75 0.86
15 A" 717 680 95.40 6.26 0.75 0.86
16 A" 346 328 1.03 2.71 0.75 0.86
17 A" 251 237 1.11 2.61 0.75 0.86
18 A" 109 103 1.52 1.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8634.2 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 8183.5 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 wB97X-D/3-21G*
ABC
0.06120 0.03607 0.03403

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.264 0.291 0.000
C2 -1.270 0.368 0.000
Cl3 -2.044 -1.246 0.000
Cl4 0.862 1.994 0.000
Cl5 0.862 -0.543 1.465
Cl6 0.862 -0.543 -1.465
H7 -1.592 0.900 0.895
H8 -1.592 0.900 -0.895

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.53632.77281.80451.78871.78872.14872.1487
C21.53631.79002.68112.74292.74291.08981.0898
Cl32.77281.79004.35183.32933.32932.36872.3687
Cl41.80452.68114.35182.92932.92932.83182.8318
Cl51.78872.74293.32932.92932.93032.90323.6980
Cl61.78872.74293.32932.92932.93033.69802.9032
H72.14871.08982.36872.83182.90323.69801.7905
H82.14871.08982.36872.83183.69802.90321.7905

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 112.717 C1 C2 H7 108.619
C1 C2 H8 108.619 C2 C1 Cl4 106.468
C2 C1 Cl5 110.933 C2 C1 Cl6 110.933
Cl3 C2 H7 108.209 Cl3 C2 H8 108.209
Cl4 C1 Cl5 109.217 Cl4 C1 Cl6 109.217
Cl5 C1 Cl6 109.987 H7 C2 H8 110.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.416      
2 C -0.501      
3 Cl 0.012      
4 Cl 0.081      
5 Cl 0.102      
6 Cl 0.102      
7 H 0.309      
8 H 0.309      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.961 1.425 0.000 1.718
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.568 -3.151 0.000
y -3.151 -62.921 0.000
z 0.000 0.000 -62.200
Traceless
 xyz
x -1.007 -3.151 0.000
y -3.151 -0.037 0.000
z 0.000 0.000 1.044
Polar
3z2-r22.088
x2-y2-0.646
xy-3.151
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.468 1.198 0.000
y 1.198 9.637 0.000
z 0.000 0.000 8.190


<r2> (average value of r2) Å2
<r2> 344.864
(<r2>)1/2 18.571