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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: PBE1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/3-21G*
 hartrees
Energy at 0K-1701.584022
Energy at 298.15K-1701.587344
HF Energy-1701.584022
Nuclear repulsion energy440.166258
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 PBE1PBE/3-21G*
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 3056 2933 0.84      
2 A1 1372 1316 51.09      
3 A1 787 756 81.70      
4 A1 462 443 20.87      
5 A1 235 226 14.83      
6 A2 161 155 0.00      
7 E 3146 3020 0.18      
7 E 3146 3020 0.18      
8 E 1505 1445 7.52      
8 E 1505 1445 7.52      
9 E 868 833 112.05      
9 E 868 833 112.04      
10 E 606 581 150.23      
10 E 606 581 150.23      
11 E 220 211 3.88      
11 E 220 211 3.88      
12 E 160 154 0.78      
12 E 160 154 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 9541.6 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 9158.0 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 PBE1PBE/3-21G*
ABC
0.05861 0.05861 0.04373

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.249
C2 0.000 0.000 2.097
Cl3 0.000 1.909 -0.461
Cl4 1.653 -0.954 -0.461
Cl5 -1.653 -0.954 -0.461
H6 0.000 -1.029 2.479
H7 0.891 0.515 2.479
H8 -0.891 0.515 2.479

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.84822.03672.03672.03672.45572.45572.4557
C21.84823.19203.19203.19201.09751.09751.0975
Cl32.03673.19203.30633.30634.15623.37363.3736
Cl42.03673.19203.30633.30633.37363.37364.1562
Cl52.03673.19203.30633.30633.37364.15623.3736
H62.45571.09754.15623.37363.37361.78251.7825
H72.45571.09753.37363.37364.15621.78251.7825
H82.45571.09753.37364.15623.37361.78251.7825

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.338 Si1 C2 H7 110.338
Si1 C2 H8 110.338 C2 Si1 Cl3 110.407
C2 Si1 Cl4 110.407 C2 Si1 Cl5 110.407
Cl3 Si1 Cl4 108.519 Cl3 Si1 Cl5 108.519
Cl4 Si1 Cl5 108.519 H6 C2 H7 108.591
H6 C2 H8 108.591 H7 C2 H8 108.591
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.947      
2 C -0.946      
3 Cl -0.257      
4 Cl -0.257      
5 Cl -0.257      
6 H 0.257      
7 H 0.257      
8 H 0.257      


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 2.361 2.361
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.659 0.000 0.000
y 0.000 -59.659 0.000
z 0.000 0.000 -54.415
Traceless
 xyz
x -2.622 0.000 0.000
y 0.000 -2.622 0.000
z 0.000 0.000 5.244
Polar
3z2-r210.487
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 8.472 0.000 0.000
y 0.000 8.472 0.000
z 0.000 0.000 7.276


<r2> (average value of r2) Å2
<r2> 281.721
(<r2>)1/2 16.785