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: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-1458.688784
Energy at 298.15K-1458.692532
Nuclear repulsion energy360.530582
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 mPW1PW91/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 A1 3083 2954 1.73      
2 A1 1394 1336 12.52      
3 A1 1109 1063 16.69      
4 A1 538 515 9.26      
5 A1 350 335 1.06      
6 A2 297 285 0.00      
7 E 3186 3053 2.18      
7 E 3186 3053 2.18      
8 E 1455 1394 3.36      
8 E 1455 1394 3.36      
9 E 1088 1042 58.36      
9 E 1087 1042 58.35      
10 E 718 688 115.27      
10 E 718 688 115.29      
11 E 347 333 1.60      
11 E 347 333 1.60      
12 E 242 232 0.23      
12 E 242 232 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 10420.5 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9985.9 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 mPW1PW91/aug-cc-pVDZ
ABC
0.07842 0.07842 0.05639

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.769
C2 0.000 0.000 0.258
H3 0.000 -1.034 2.129
H4 0.895 0.517 2.129
H5 -0.895 0.517 2.129
Cl6 0.000 1.679 -0.364
Cl7 -1.454 -0.839 -0.364
Cl8 1.454 -0.839 -0.364

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 Cl6 Cl7 Cl8
C11.51071.09461.09461.09462.71382.71382.7138
C21.51072.13782.13782.13781.79031.79031.7903
H31.09462.13781.79011.79013.68402.89242.8924
H41.09462.13781.79011.79012.89243.68402.8924
H51.09462.13781.79011.79012.89242.89243.6840
Cl62.71381.79033.68402.89242.89242.90802.9080
Cl72.71381.79032.89243.68402.89242.90802.9080
Cl82.71381.79032.89242.89243.68402.90802.9080

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 110.312 C1 C2 Cl7 110.312
C1 C2 Cl8 110.312 C2 C1 H3 109.238
C2 C1 H4 109.238 C2 C1 H5 109.238
H3 C1 H4 109.703 H3 C1 H5 109.703
H4 C1 H5 109.703 Cl6 C2 Cl7 108.618
Cl6 C2 Cl8 108.618 Cl7 C2 Cl8 108.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.054      
2 C -1.164      
3 H -0.046      
4 H -0.046      
5 H -0.046      
6 Cl 0.083      
7 Cl 0.083      
8 Cl 0.083      


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 1.910 1.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.889 0.000 0.000
y 0.000 -50.889 0.000
z 0.000 0.000 -47.532
Traceless
 xyz
x -1.678 0.000 0.000
y 0.000 -1.678 0.000
z 0.000 0.000 3.357
Polar
3z2-r26.713
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 10.473 0.000 0.000
y 0.000 10.473 0.000
z 0.000 0.000 9.132


<r2> (average value of r2) Å2
<r2> 217.557
(<r2>)1/2 14.750