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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-1710.197687
Energy at 298.15K-1710.200898
HF Energy-1710.197687
Nuclear repulsion energy438.935186
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(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 3073 2934 0.44      
2 A1 1292 1234 20.59      
3 A1 763 729 69.48      
4 A1 450 430 18.96      
5 A1 231 221 9.94      
6 A2 163 156 0.00      
7 E 3174 3030 0.23      
7 E 3174 3030 0.23      
8 E 1448 1382 2.50      
8 E 1448 1382 2.50      
9 E 817 780 87.86      
9 E 817 780 87.86      
10 E 583 557 139.84      
10 E 583 557 139.85      
11 E 216 206 2.28      
11 E 216 206 2.28      
12 E 152 145 0.63      
12 E 152 145 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 9376.4 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 8951.6 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(2df,p)
ABC
0.05826 0.05826 0.04352

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.259
C2 0.000 0.000 2.104
Cl3 0.000 1.914 -0.464
Cl4 1.657 -0.957 -0.464
Cl5 -1.657 -0.957 -0.464
H6 0.000 -1.026 2.477
H7 0.889 0.513 2.477
H8 -0.889 0.513 2.477

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.84482.04582.04582.04582.44412.44412.4441
C21.84483.20283.20283.20281.09211.09211.0921
Cl32.04583.20283.31463.31464.15893.37703.3770
Cl42.04583.20283.31463.31463.37703.37704.1589
Cl52.04583.20283.31463.31463.37704.15893.3770
H62.44411.09214.15893.37703.37701.77761.7776
H72.44411.09213.37703.37704.15891.77761.7776
H82.44411.09213.37704.15893.37701.77761.7776

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.990 Si1 C2 H7 109.990
Si1 C2 H8 109.990 C2 Si1 Cl3 110.706
C2 Si1 Cl4 110.706 C2 Si1 Cl5 110.706
Cl3 Si1 Cl4 108.209 Cl3 Si1 Cl5 108.209
Cl4 Si1 Cl5 108.209 H6 C2 H7 108.948
H6 C2 H8 108.948 H7 C2 H8 108.948
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.499      
2 C -0.548      
3 Cl -0.170      
4 Cl -0.170      
5 Cl -0.170      
6 H 0.186      
7 H 0.186      
8 H 0.186      


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 2.125 2.125
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.791 0.000 0.000
y 0.000 -57.791 0.000
z 0.000 0.000 -53.274
Traceless
 xyz
x -2.259 0.000 0.000
y 0.000 -2.259 0.000
z 0.000 0.000 4.517
Polar
3z2-r29.034
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 9.880 0.000 0.000
y 0.000 9.880 0.000
z 0.000 0.000 8.989


<r2> (average value of r2) Å2
<r2> 281.989
(<r2>)1/2 16.793