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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-1702.264332
Energy at 298.15K-1702.267617
HF Energy-1702.264332
Nuclear repulsion energy437.675481
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/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 3041 2926 0.11      
2 A1 1377 1324 36.52      
3 A1 770 740 79.78      
4 A1 448 431 21.08      
5 A1 234 225 14.26      
6 A2 161 155 0.00      
7 E 3119 3001 1.04      
7 E 3119 3001 1.04      
8 E 1514 1456 5.64      
8 E 1514 1456 5.64      
9 E 873 840 100.86      
9 E 873 840 100.85      
10 E 589 566 153.19      
10 E 589 566 153.17      
11 E 221 212 3.68      
11 E 221 212 3.68      
12 E 160 154 0.80      
12 E 160 154 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 9489.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 9128.8 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/3-21G*
ABC
0.05796 0.05796 0.04318

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/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 2.106
Cl3 0.000 1.921 -0.463
Cl4 1.664 -0.961 -0.463
Cl5 -1.664 -0.961 -0.463
H6 0.000 -1.028 2.488
H7 0.890 0.514 2.488
H8 -0.890 0.514 2.488

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85602.04932.04932.04932.46252.46252.4625
C21.85603.20823.20823.20821.09671.09671.0967
Cl32.04933.20823.32753.32754.17213.38833.3883
Cl42.04933.20823.32753.32753.38833.38834.1721
Cl52.04933.20823.32753.32753.38834.17213.3883
H62.46251.09674.17213.38833.38831.78081.7808
H72.46251.09673.38833.38834.17211.78081.7808
H82.46251.09673.38834.17213.38831.78081.7808

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.361 Si1 C2 H7 110.361
Si1 C2 H8 110.361 C2 Si1 Cl3 110.370
C2 Si1 Cl4 110.370 C2 Si1 Cl5 110.370
Cl3 Si1 Cl4 108.557 Cl3 Si1 Cl5 108.557
Cl4 Si1 Cl5 108.557 H6 C2 H7 108.567
H6 C2 H8 108.567 H7 C2 H8 108.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.945      
2 C -0.855      
3 Cl -0.260      
4 Cl -0.260      
5 Cl -0.260      
6 H 0.230      
7 H 0.230      
8 H 0.230      


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 2.338 2.338
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.755 0.000 0.000
y 0.000 -59.755 0.000
z 0.000 0.000 -54.526
Traceless
 xyz
x -2.614 0.000 0.000
y 0.000 -2.614 0.000
z 0.000 0.000 5.229
Polar
3z2-r210.458
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 8.565 0.000 0.000
y 0.000 8.565 0.000
z 0.000 0.000 7.325


<r2> (average value of r2) Å2
<r2> 284.635
(<r2>)1/2 16.871