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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: PBEPBE/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 PBEPBE/3-21G*
 hartrees
Energy at 0K-1701.419131
Energy at 298.15K-1701.422309
HF Energy-1701.419131
Nuclear repulsion energy436.545369
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/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 2975 2837 0.39      
2 A1 1319 1258 37.88      
3 A1 758 723 76.36      
4 A1 440 420 19.44      
5 A1 226 216 12.54      
6 A2 155 148 0.00      
7 E 3064 2921 0.54      
7 E 3064 2921 0.55      
8 E 1465 1397 5.76      
8 E 1465 1397 5.76      
9 E 843 804 102.71      
9 E 843 804 102.71      
10 E 580 553 140.19      
10 E 580 553 140.18      
11 E 212 202 2.79      
11 E 212 202 2.79      
12 E 154 147 0.75      
12 E 154 147 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 9254.8 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 8824.5 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/3-21G*
ABC
0.05767 0.05767 0.04297

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.250
C2 0.000 0.000 2.112
Cl3 0.000 1.926 -0.464
Cl4 1.668 -0.963 -0.464
Cl5 -1.668 -0.963 -0.464
H6 0.000 -1.037 2.494
H7 0.898 0.519 2.494
H8 -0.898 0.519 2.494

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.86172.05412.05412.05412.47142.47142.4714
C21.86173.21643.21643.21641.10531.10531.1053
Cl32.05413.21643.33563.33564.18663.39633.3963
Cl42.05413.21643.33563.33563.39633.39634.1866
Cl52.05413.21643.33563.33563.39634.18663.3963
H62.47141.10534.18663.39633.39631.79671.7967
H72.47141.10533.39633.39634.18661.79671.7967
H82.47141.10533.39634.18663.39631.79671.7967

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.194 Si1 C2 H7 110.194
Si1 C2 H8 110.194 C2 Si1 Cl3 110.353
C2 Si1 Cl4 110.353 C2 Si1 Cl5 110.353
Cl3 Si1 Cl4 108.575 Cl3 Si1 Cl5 108.575
Cl4 Si1 Cl5 108.575 H6 C2 H7 108.739
H6 C2 H8 108.739 H7 C2 H8 108.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.841      
2 C -0.884      
3 Cl -0.231      
4 Cl -0.231      
5 Cl -0.231      
6 H 0.245      
7 H 0.245      
8 H 0.245      


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 2.345 2.345
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.406 0.000 0.000
y 0.000 -59.406 0.000
z 0.000 0.000 -54.189
Traceless
 xyz
x -2.608 0.000 0.000
y 0.000 -2.608 0.000
z 0.000 0.000 5.216
Polar
3z2-r210.433
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 8.894 0.000 0.000
y 0.000 8.895 0.000
z 0.000 0.000 7.618


<r2> (average value of r2) Å2
<r2> 285.670
(<r2>)1/2 16.902