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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-1710.170382
Energy at 298.15K-1710.173629
HF Energy-1710.170382
Nuclear repulsion energy437.635088
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 mPW1PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3088 2929 0.33      
2 A1 1340 1271 30.20      
3 A1 764 725 76.83      
4 A1 451 427 21.96      
5 A1 235 222 14.25      
6 A2 170 161 0.00      
7 E 3185 3020 0.29      
7 E 3185 3020 0.29      
8 E 1482 1405 5.02      
8 E 1482 1405 5.02      
9 E 847 803 100.45      
9 E 847 803 100.44      
10 E 590 559 156.35      
10 E 590 559 156.34      
11 E 219 208 3.57      
11 E 219 208 3.57      
12 E 155 147 0.74      
12 E 155 147 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 9500.6 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 9009.4 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 mPW1PW91/6-31G*
ABC
0.05794 0.05794 0.04319

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.255
C2 0.000 0.000 2.107
Cl3 0.000 1.921 -0.464
Cl4 1.664 -0.960 -0.464
Cl5 -1.664 -0.960 -0.464
H6 0.000 -1.026 2.485
H7 0.889 0.513 2.485
H8 -0.889 0.513 2.485

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85252.05102.05102.05102.45492.45492.4549
C21.85253.20943.20943.20941.09341.09341.0934
Cl32.05103.20943.32723.32724.16893.38633.3863
Cl42.05103.20943.32723.32723.38633.38634.1689
Cl52.05103.20943.32723.32723.38634.16893.3863
H62.45491.09344.16893.38633.38631.77721.7772
H72.45491.09343.38633.38634.16891.77721.7772
H82.45491.09343.38634.16893.38631.77721.7772

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.208 Si1 C2 H7 110.208
Si1 C2 H8 110.208 C2 Si1 Cl3 110.508
C2 Si1 Cl4 110.508 C2 Si1 Cl5 110.508
Cl3 Si1 Cl4 108.415 Cl3 Si1 Cl5 108.415
Cl4 Si1 Cl5 108.414 H6 C2 H7 108.724
H6 C2 H8 108.724 H7 C2 H8 108.724
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.654      
2 C -0.746      
3 Cl -0.200      
4 Cl -0.200      
5 Cl -0.200      
6 H 0.230      
7 H 0.230      
8 H 0.230      


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 2.424 2.424
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.352 0.000 0.000
y 0.000 -59.352 0.000
z 0.000 0.000 -53.977
Traceless
 xyz
x -2.688 0.000 0.000
y 0.000 -2.688 0.000
z 0.000 0.000 5.376
Polar
3z2-r210.751
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 8.900 0.000 0.000
y 0.000 8.900 0.000
z 0.000 0.000 7.816


<r2> (average value of r2) Å2
<r2> 284.353
(<r2>)1/2 16.863