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 CH2ClCHCl2 (1,1,2-trichloroethane)

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-1458.018759
Energy at 298.15K-1458.022676
HF Energy-1458.018759
Nuclear repulsion energy340.427222
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 PBE1PBE/6-31G*
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 3212 3052 0.16      
2 A 3187 3029 1.05      
3 A 3139 2983 4.99      
4 A 1493 1419 8.04      
5 A 1368 1300 8.15      
6 A 1324 1258 18.31      
7 A 1267 1204 21.15      
8 A 1208 1148 4.62      
9 A 1091 1037 3.76      
10 A 963 915 32.30      
11 A 810 770 16.66      
12 A 763 725 137.76      
13 A 691 657 32.51      
14 A 394 374 7.63      
15 A 341 324 1.36      
16 A 261 248 1.53      
17 A 182 173 4.37      
18 A 114 108 3.73      

Unscaled Zero Point Vibrational Energy (zpe) 10903.3 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 10361.4 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 PBE1PBE/6-31G*
ABC
0.11718 0.04900 0.03574

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.660 -0.840 0.385
C2 -0.416 -0.075 -0.362
Cl3 2.290 -0.304 -0.088
H4 0.547 -0.702 1.462
H5 0.576 -1.900 0.140
Cl6 -1.983 -0.855 -0.011
Cl7 -0.443 1.643 0.082
H8 -0.266 -0.126 -1.441

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.51741.78001.09141.09162.67322.73382.1683
C21.51742.72982.15632.13771.78561.77411.0898
Cl31.78002.72982.36662.35324.30973.36042.8977
H41.09142.15632.36661.78452.93202.89573.0690
H51.09162.13772.35321.78452.76923.68732.5211
Cl62.67321.78564.30972.93202.76922.93552.3501
Cl72.73381.77413.36042.89573.68732.93552.3404
H82.16831.08982.89773.06902.52112.35012.3404

picture of 1,1,2-trichloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 107.782 C1 C2 Cl7 112.074
C1 C2 H8 111.480 C2 C1 Cl3 111.511
C2 C1 H4 110.418 C2 C1 H5 108.942
Cl3 C1 H4 108.628 Cl3 C1 H5 107.637
H4 C1 H5 109.652 Cl6 C2 Cl7 111.104
Cl6 C2 H8 107.139 Cl7 C2 H8 107.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.433      
2 C -0.383      
3 Cl -0.022      
4 H 0.258      
5 H 0.254      
6 Cl 0.012      
7 Cl 0.030      
8 H 0.284      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.074 -1.387 -0.172 1.400
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -55.353 -0.162 0.468
y -0.162 -49.770 -0.392
z 0.468 -0.392 -48.208
Traceless
 xyz
x -6.364 -0.162 0.468
y -0.162 2.011 -0.392
z 0.468 -0.392 4.353
Polar
3z2-r28.707
x2-y2-5.583
xy-0.162
xz0.468
yz-0.392


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.379 0.931 -0.405
y 0.931 7.664 0.048
z -0.405 0.048 5.123


<r2> (average value of r2) Å2
<r2> 270.081
(<r2>)1/2 16.434