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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: LSDA/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 LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-1705.640946
Energy at 298.15K-1705.644024
HF Energy-1705.640946
Nuclear repulsion energy441.235726
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 LSDA/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 2994 2946 4.10      
2 A1 1211 1192 33.90      
3 A1 767 755 62.61      
4 A1 448 441 16.88      
5 A1 222 218 8.65      
6 A2 153 151 0.00      
7 E 3100 3051 0.44      
7 E 3100 3051 0.44      
8 E 1365 1343 3.63      
8 E 1365 1343 3.63      
9 E 773 760 97.21      
9 E 773 760 97.20      
10 E 582 572 111.21      
10 E 582 572 111.25      
11 E 205 201 1.56      
11 E 205 201 1.56      
12 E 145 142 0.68      
12 E 145 142 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 9066.3 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 8921.3 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 LSDA/6-31G(2df,p)
ABC
0.05893 0.05893 0.04399

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.261
C2 0.000 0.000 2.089
Cl3 0.000 1.903 -0.462
Cl4 1.648 -0.952 -0.462
Cl5 -1.648 -0.952 -0.462
H6 0.000 -1.036 2.463
H7 0.897 0.518 2.463
H8 -0.897 0.518 2.463

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.82802.03572.03572.03572.43412.43412.4341
C21.82803.18243.18243.18241.10141.10141.1014
Cl32.03573.18243.29623.29624.14673.35893.3589
Cl42.03573.18243.29623.29623.35893.35894.1467
Cl52.03573.18243.29623.29623.35894.14673.3589
H62.43411.10144.14673.35893.35891.79381.7938
H72.43411.10143.35893.35894.14671.79381.7938
H82.43411.10143.35894.14673.35891.79381.7938

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.896 Si1 C2 H7 109.896
Si1 C2 H8 109.896 C2 Si1 Cl3 110.796
C2 Si1 Cl4 110.796 C2 Si1 Cl5 110.796
Cl3 Si1 Cl4 108.115 Cl3 Si1 Cl5 108.115
Cl4 Si1 Cl5 108.115 H6 C2 H7 109.043
H6 C2 H8 109.043 H7 C2 H8 109.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.332      
2 C -0.539      
3 Cl -0.132      
4 Cl -0.132      
5 Cl -0.132      
6 H 0.201      
7 H 0.201      
8 H 0.201      


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 2.137 2.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.520 0.000 0.000
y 0.000 -57.520 0.000
z 0.000 0.000 -52.977
Traceless
 xyz
x -2.272 0.000 0.000
y 0.000 -2.272 0.000
z 0.000 0.000 4.543
Polar
3z2-r29.086
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 10.169 0.000 0.000
y 0.000 10.169 0.000
z 0.000 0.000 9.259


<r2> (average value of r2) Å2
<r2> 279.123
(<r2>)1/2 16.707