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 CH3CCl3 (Ethane, 1,1,1-trichloro-)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-1458.432081
Energy at 298.15K-1458.435782
Nuclear repulsion energy361.037911
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 B3PW91/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3068 2949 1.83      
2 A1 1401 1347 8.98      
3 A1 1087 1045 19.69      
4 A1 531 511 10.41      
5 A1 346 333 1.34      
6 A2 301 289 0.00      
7 E 3167 3045 1.97      
7 E 3167 3045 1.97      
8 E 1469 1412 2.85      
8 E 1469 1412 2.84      
9 E 1093 1051 58.65      
9 E 1093 1051 58.64      
10 E 714 686 123.15      
10 E 714 686 123.14      
11 E 343 330 1.49      
11 E 343 330 1.49      
12 E 238 229 0.25      
12 E 238 229 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 10391.2 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 9990.1 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 B3PW91/6-31G(2df,p)
ABC
0.07863 0.07863 0.05653

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.767
C2 0.000 0.000 0.251
H3 0.000 -1.030 2.129
H4 0.892 0.515 2.129
H5 -0.892 0.515 2.129
Cl6 0.000 1.677 -0.363
Cl7 -1.452 -0.838 -0.363
Cl8 1.452 -0.838 -0.363

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 Cl6 Cl7 Cl8
C11.51521.09221.09221.09222.71022.71022.7102
C21.51522.14142.14142.14141.78571.78571.7857
H31.09222.14141.78481.78483.67902.88992.8899
H41.09222.14141.78481.78482.88993.67902.8899
H51.09222.14141.78481.78482.88992.88993.6790
Cl62.71021.78573.67902.88992.88992.90442.9044
Cl72.71021.78572.88993.67902.88992.90442.9044
Cl82.71021.78572.88992.88993.67902.90442.9044

picture of Ethane, 1,1,1-trichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 110.109 C1 C2 Cl7 110.109
C1 C2 Cl8 110.109 C2 C1 H3 109.354
C2 C1 H4 109.354 C2 C1 H5 109.354
H3 C1 H4 109.588 H3 C1 H5 109.588
H4 C1 H5 109.588 Cl6 C2 Cl7 108.826
Cl6 C2 Cl8 108.826 Cl7 C2 Cl8 108.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.435      
2 C 0.088      
3 H 0.186      
4 H 0.186      
5 H 0.186      
6 Cl -0.070      
7 Cl -0.070      
8 Cl -0.070      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.895 1.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.187 0.000 0.000
y 0.000 -50.187 0.000
z 0.000 0.000 -46.987
Traceless
 xyz
x -1.600 0.000 0.000
y 0.000 -1.600 0.000
z 0.000 0.000 3.201
Polar
3z2-r26.401
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.980 0.000 0.000
y 0.000 8.980 0.000
z 0.000 0.000 7.445


<r2> (average value of r2) Å2
<r2> 216.671
(<r2>)1/2 14.720