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: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-1457.961172
Energy at 298.15K-1457.964739
Nuclear repulsion energy356.749268
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2994 2977 1.48      
2 A1 1333 1325 10.39      
3 A1 1065 1059 31.01      
4 A1 511 508 13.50      
5 A1 336 334 1.29      
6 A2 296 294 0.00      
7 E 3096 3078 1.63      
7 E 3096 3078 1.63      
8 E 1395 1387 2.65      
8 E 1395 1387 2.65      
9 E 1044 1038 62.54      
9 E 1044 1038 62.53      
10 E 661 657 144.60      
10 E 661 657 144.61      
11 E 335 333 2.58      
11 E 335 333 2.58      
12 E 232 231 0.11      
12 E 232 231 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 10029.6 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9971.5 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 PBEPBE/cc-pVDZ
ABC
0.07686 0.07686 0.05504

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.777
C2 0.000 0.000 0.258
H3 0.000 -1.044 2.144
H4 0.904 0.522 2.144
H5 -0.904 0.522 2.144
Cl6 0.000 1.699 -0.366
Cl7 -1.472 -0.850 -0.366
Cl8 1.472 -0.850 -0.366

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 Cl6 Cl7 Cl8
C11.51831.10651.10651.10652.73452.73452.7345
C21.51832.15522.15522.15521.81041.81041.8104
H31.10652.15521.80781.80783.71792.91572.9157
H41.10652.15521.80781.80782.91573.71792.9157
H51.10652.15521.80781.80782.91572.91573.7179
Cl62.73451.81043.71792.91572.91572.94362.9436
Cl72.73451.81042.91573.71792.91572.94362.9436
Cl82.73451.81042.91572.91573.71792.94362.9436

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 110.158 C1 C2 Cl7 110.158
C1 C2 Cl8 110.158 C2 C1 H3 109.387
C2 C1 H4 109.387 C2 C1 H5 109.387
H3 C1 H4 109.555 H3 C1 H5 109.555
H4 C1 H5 109.555 Cl6 C2 Cl7 108.776
Cl6 C2 Cl8 108.776 Cl7 C2 Cl8 108.776
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.091      
2 C -0.357      
3 H 0.070      
4 H 0.070      
5 H 0.070      
6 Cl 0.018      
7 Cl 0.018      
8 Cl 0.018      


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 1.864 1.864
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.260 0.000 0.000
y 0.000 -50.260 0.000
z 0.000 0.000 -47.232
Traceless
 xyz
x -1.514 0.000 0.000
y 0.000 -1.514 0.000
z 0.000 0.000 3.028
Polar
3z2-r26.057
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 8.500 0.000 0.000
y 0.000 8.500 0.000
z 0.000 0.000 6.878


<r2> (average value of r2) Å2
<r2> 221.274
(<r2>)1/2 14.875