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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: LSDA/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-1705.630694
Energy at 298.15K-1705.633831
HF Energy-1705.630694
Nuclear repulsion energy439.246743
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/6-31+G**
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 2997 2952 1.28      
2 A1 1237 1218 45.42      
3 A1 765 753 68.16      
4 A1 445 438 20.39      
5 A1 224 220 12.38      
6 A2 172 170 0.00      
7 E 3104 3058 0.33      
7 E 3104 3058 0.33      
8 E 1381 1360 7.53      
8 E 1381 1360 7.53      
9 E 793 781 97.67      
9 E 793 781 97.64      
10 E 579 570 135.79      
10 E 579 570 135.73      
11 E 208 205 3.00      
11 E 208 205 3.00      
12 E 148 146 0.69      
12 E 148 146 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 9132.4 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 8995.5 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/6-31+G**
ABC
0.05845 0.05845 0.04345

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.255
C2 0.000 0.000 2.090
Cl3 0.000 1.915 -0.461
Cl4 1.659 -0.958 -0.461
Cl5 -1.659 -0.958 -0.461
H6 0.000 -1.036 2.467
H7 0.897 0.518 2.467
H8 -0.897 0.518 2.467

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.83422.04482.04482.04482.44172.44172.4417
C21.83423.18973.18973.18971.10221.10221.1022
Cl32.04483.18973.31713.31714.15683.36573.3657
Cl42.04483.18973.31713.31713.36573.36574.1568
Cl52.04483.18973.31713.31713.36574.15683.3657
H62.44171.10224.15683.36573.36571.79411.7941
H72.44171.10223.36573.36574.15681.79411.7941
H82.44171.10223.36574.15683.36571.79411.7941

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.994 Si1 C2 H7 109.994
Si1 C2 H8 109.994 C2 Si1 Cl3 110.512
C2 Si1 Cl4 110.512 C2 Si1 Cl5 110.512
Cl3 Si1 Cl4 108.410 Cl3 Si1 Cl5 108.410
Cl4 Si1 Cl5 108.410 H6 C2 H7 108.943
H6 C2 H8 108.943 H7 C2 H8 108.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.144      
2 C -0.690      
3 Cl -0.051      
4 Cl -0.051      
5 Cl -0.051      
6 H 0.233      
7 H 0.233      
8 H 0.233      


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 2.303 2.303
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.438 0.000 0.000
y 0.000 -59.438 0.000
z 0.000 0.000 -54.501
Traceless
 xyz
x -2.469 0.000 0.000
y 0.000 -2.469 0.000
z 0.000 0.000 4.937
Polar
3z2-r29.875
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 10.706 0.000 0.000
y 0.000 10.707 -0.000
z 0.000 -0.000 9.806


<r2> (average value of r2) Å2
<r2> 282.581
(<r2>)1/2 16.810