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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-1688.684400
Energy at 298.15K-1688.687676
HF Energy-1688.684400
Nuclear repulsion energy433.141640
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 HF/STO-3G
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 3580 2923 7.97      
2 A1 1655 1351 0.37      
3 A1 905 739 47.96      
4 A1 506 413 20.05      
5 A1 244 199 42.35      
6 A2 125 102 0.00      
7 E 3764 3073 6.34      
7 E 3764 3073 6.34      
8 E 1801 1471 2.60      
8 E 1801 1471 2.60      
9 E 1074 877 81.56      
9 E 1074 877 81.56      
10 E 697 569 102.44      
10 E 697 569 102.44      
11 E 236 193 14.12      
11 E 236 193 14.12      
12 E 169 138 2.75      
12 E 169 138 2.75      

Unscaled Zero Point Vibrational Energy (zpe) 11248.2 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 9184.2 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 HF/STO-3G
ABC
0.05675 0.05675 0.04222

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.267
C2 0.000 0.000 2.121
Cl3 0.000 1.943 -0.470
Cl4 1.683 -0.972 -0.470
Cl5 -1.683 -0.972 -0.470
H6 0.000 -1.016 2.496
H7 0.880 0.508 2.496
H8 -0.880 0.508 2.496

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85332.07832.07832.07832.44942.44942.4494
C21.85333.23823.23823.23821.08291.08291.0829
Cl32.07833.23823.36573.36574.18953.41053.4105
Cl42.07833.23823.36573.36573.41053.41054.1895
Cl52.07833.23823.36573.36573.41054.18953.4105
H62.44941.08294.18953.41053.41051.75921.7592
H72.44941.08293.41053.41054.18951.75921.7592
H82.44941.08293.41054.18953.41051.75921.7592

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.298 Si1 C2 H7 110.298
Si1 C2 H8 110.298 C2 Si1 Cl3 110.774
C2 Si1 Cl4 110.774 C2 Si1 Cl5 110.774
Cl3 Si1 Cl4 108.138 Cl3 Si1 Cl5 108.138
Cl4 Si1 Cl5 108.138 H6 C2 H7 108.632
H6 C2 H8 108.632 H7 C2 H8 108.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 1.074      
2 C -0.369      
3 Cl -0.328      
4 Cl -0.328      
5 Cl -0.328      
6 H 0.093      
7 H 0.093      
8 H 0.093      


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 3.296 3.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.099 0.000 0.000
y 0.000 -60.099 0.000
z 0.000 0.000 -51.743
Traceless
 xyz
x -4.178 0.000 0.000
y 0.000 -4.178 0.000
z 0.000 0.000 8.356
Polar
3z2-r216.713
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 4.470 0.000 0.000
y 0.000 4.470 0.000
z 0.000 0.000 3.146


<r2> (average value of r2) Å2
<r2> 289.403
(<r2>)1/2 17.012