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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-1702.380513
Energy at 298.15K-1702.383856
HF Energy-1702.380513
Nuclear repulsion energy441.318101
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 B1B95/3-21G*
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 3067 2928 0.78      
2 A1 1374 1312 48.69      
3 A1 784 749 83.42      
4 A1 464 443 20.64      
5 A1 236 225 14.67      
6 A2 171 164 0.00      
7 E 3156 3014 0.30      
7 E 3156 3014 0.31      
8 E 1510 1442 7.22      
8 E 1510 1442 7.22      
9 E 868 828 110.82      
9 E 868 828 110.75      
10 E 609 582 152.56      
10 E 609 581 152.53      
11 E 219 210 3.99      
11 E 219 210 4.00      
12 E 160 153 0.70      
12 E 160 153 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 9570.3 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 9138.6 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 B1B95/3-21G*
ABC
0.05892 0.05892 0.04396

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.248
C2 0.000 0.000 2.092
Cl3 0.000 1.904 -0.460
Cl4 1.649 -0.952 -0.460
Cl5 -1.649 -0.952 -0.460
H6 0.000 -1.026 2.472
H7 0.889 0.513 2.472
H8 -0.889 0.513 2.472

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.84392.03132.03132.03132.44922.44922.4492
C21.84393.18403.18403.18401.09441.09441.0944
Cl32.03133.18403.29773.29774.14523.36463.3646
Cl42.03133.18403.29773.29773.36463.36464.1452
Cl52.03133.18403.29773.29773.36464.14523.3646
H62.44921.09444.14523.36463.36461.77761.7776
H72.44921.09443.36463.36464.14521.77761.7776
H82.44921.09443.36464.14523.36461.77761.7776

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.312 Si1 C2 H7 110.312
Si1 C2 H8 110.312 C2 Si1 Cl3 110.403
C2 Si1 Cl4 110.403 C2 Si1 Cl5 110.403
Cl3 Si1 Cl4 108.524 Cl3 Si1 Cl5 108.524
Cl4 Si1 Cl5 108.524 H6 C2 H7 108.617
H6 C2 H8 108.617 H7 C2 H8 108.617
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.908      
2 C -0.917      
3 Cl -0.247      
4 Cl -0.247      
5 Cl -0.247      
6 H 0.250      
7 H 0.250      
8 H 0.250      


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 2.322 2.322
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.336 0.000 0.000
y 0.000 -59.336 0.000
z 0.000 0.000 -54.196
Traceless
 xyz
x -2.570 0.000 0.000
y 0.000 -2.570 0.000
z 0.000 0.000 5.140
Polar
3z2-r210.281
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 8.450 0.000 0.000
y 0.000 8.452 0.000
z 0.000 0.000 7.276


<r2> (average value of r2) Å2
<r2> 280.263
(<r2>)1/2 16.741