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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-56.158949
Energy at 298.15K-56.161789
HF Energy-56.158949
Nuclear repulsion energy77.850470
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 B3LYP/CEP-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 3056 2959 1.85      
2 A1 1357 1314 24.89      
3 A1 719 696 44.41      
4 A1 374 362 23.13      
5 A1 193 187 18.57      
6 A2 161 156 0.00      
7 E 3166 3066 1.58      
7 E 3166 3066 1.58      
8 E 1456 1410 11.73      
8 E 1456 1410 11.73      
9 E 908 879 84.29      
9 E 908 879 84.28      
10 E 498 482 124.76      
10 E 498 482 124.77      
11 E 190 184 4.14      
11 E 190 184 4.14      
12 E 131 127 1.39      
12 E 131 127 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 9278.5 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 8985.3 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 B3LYP/CEP-31G
ABC
0.05162 0.05162 0.03796

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.297
C2 0.000 0.000 2.190
Cl3 0.000 2.050 -0.490
Cl4 1.775 -1.025 -0.490
Cl5 -1.775 -1.025 -0.490
H6 0.000 -1.036 2.563
H7 0.897 0.518 2.563
H8 -0.897 0.518 2.563

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.89282.19592.19592.19592.49162.49162.4916
C21.89283.37433.37433.37431.10121.10121.1012
Cl32.19593.37433.55053.55054.34123.53203.5320
Cl42.19593.37433.55053.55053.53203.53204.3412
Cl52.19593.37433.55053.55053.53204.34123.5320
H62.49161.10124.34123.53203.53201.79451.7945
H72.49161.10123.53203.53204.34121.79451.7945
H82.49161.10123.53204.34123.53201.79451.7945

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.808 Si1 C2 H7 109.808
Si1 C2 H8 109.808 C2 Si1 Cl3 111.013
C2 Si1 Cl4 111.013 C2 Si1 Cl5 111.013
Cl3 Si1 Cl4 107.887 Cl3 Si1 Cl5 107.887
Cl4 Si1 Cl5 107.887 H6 C2 H7 109.133
H6 C2 H8 109.133 H7 C2 H8 109.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.411      
2 C -0.566      
3 Cl -0.173      
4 Cl -0.173      
5 Cl -0.173      
6 H 0.225      
7 H 0.225      
8 H 0.225      


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 3.698 3.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -61.016 0.000 0.000
y 0.000 -61.016 0.000
z 0.000 0.000 -52.217
Traceless
 xyz
x -4.399 0.000 0.000
y 0.000 -4.399 0.000
z 0.000 0.000 8.798
Polar
3z2-r217.596
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 9.966 0.000 0.000
y 0.000 9.966 0.000
z 0.000 0.000 7.503


<r2> (average value of r2) Å2
<r2> 172.037
(<r2>)1/2 13.116