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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-1700.959391
Energy at 298.15K-1700.962250
HF Energy-1700.959391
Nuclear repulsion energy417.951702
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 2995 2968 2.18      
2 A1 1326 1314 23.82      
3 A1 749 743 59.25      
4 A1 377 373 20.50      
5 A1 192 190 18.42      
6 A2 148 146 0.00      
7 E 3092 3063 0.29      
7 E 3092 3063 0.29      
8 E 1461 1448 7.73      
8 E 1461 1448 7.72      
9 E 879 871 83.80      
9 E 879 871 83.80      
10 E 508 504 117.51      
10 E 508 504 117.51      
11 E 187 186 4.24      
11 E 187 186 4.25      
12 E 138 136 1.24      
12 E 138 136 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 9157.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 9074.6 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 PBEPBE/3-21G
ABC
0.05300 0.05300 0.03887

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 0.278
C2 0.000 0.000 2.162
Cl3 0.000 2.026 -0.480
Cl4 1.754 -1.013 -0.480
Cl5 -1.754 -1.013 -0.480
H6 0.000 -1.040 2.530
H7 0.901 0.520 2.530
H8 -0.901 0.520 2.530

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.88412.16272.16272.16272.48082.48082.4808
C21.88413.32903.32903.32901.10331.10331.1033
Cl32.16273.32903.50853.50854.29633.48403.4840
Cl42.16273.32903.50853.50853.48403.48404.2963
Cl52.16273.32903.50853.50853.48404.29633.4840
H62.48081.10334.29633.48403.48401.80151.8015
H72.48081.10333.48403.48404.29631.80151.8015
H82.48081.10333.48404.29633.48401.80151.8015

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.492 Si1 C2 H7 109.492
Si1 C2 H8 109.492 C2 Si1 Cl3 110.510
C2 Si1 Cl4 110.510 C2 Si1 Cl5 110.510
Cl3 Si1 Cl4 108.413 Cl3 Si1 Cl5 108.413
Cl4 Si1 Cl5 108.413 H6 C2 H7 109.450
H6 C2 H8 109.450 H7 C2 H8 109.450
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 0.965      
2 C -0.970      
3 Cl -0.270      
4 Cl -0.270      
5 Cl -0.270      
6 H 0.272      
7 H 0.272      
8 H 0.272      


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 3.370 3.370
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.247 0.000 0.000
y 0.000 -63.247 0.000
z 0.000 0.000 -54.964
Traceless
 xyz
x -4.142 0.000 0.000
y 0.000 -4.142 0.000
z 0.000 0.000 8.284
Polar
3z2-r216.567
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 9.509 0.000 0.000
y 0.000 9.509 0.000
z 0.000 0.000 7.299


<r2> (average value of r2) Å2
<r2> 310.360
(<r2>)1/2 17.617