return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: B3PW91/6-31+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 B3PW91/6-31+G**
 hartrees
Energy at 0K-1709.950993
Energy at 298.15K-1709.954215
HF Energy-1709.950993
Nuclear repulsion energy436.746297
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 B3PW91/6-31+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 3063 2941 0.00      
2 A1 1306 1254 27.55      
3 A1 755 725 74.08      
4 A1 444 426 22.03      
5 A1 231 222 13.60      
6 A2 172 166 0.00      
7 E 3163 3037 0.35      
7 E 3163 3037 0.35      
8 E 1450 1393 5.25      
8 E 1450 1393 5.25      
9 E 831 798 88.76      
9 E 831 798 88.75      
10 E 577 554 157.22      
10 E 577 554 157.20      
11 E 217 208 3.54      
11 E 217 208 3.54      
12 E 154 148 0.72      
12 E 154 148 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 9378.0 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 9003.8 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 B3PW91/6-31+G**
ABC
0.05771 0.05771 0.04300

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.256
C2 0.000 0.000 2.110
Cl3 0.000 1.925 -0.465
Cl4 1.667 -0.963 -0.465
Cl5 -1.667 -0.963 -0.465
H6 0.000 -1.027 2.487
H7 0.890 0.514 2.487
H8 -0.890 0.514 2.487

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85362.05592.05592.05592.45562.45562.4556
C21.85363.21493.21493.21491.09411.09411.0941
Cl32.05593.21493.33473.33474.17473.39053.3905
Cl42.05593.21493.33473.33473.39053.39054.1747
Cl52.05593.21493.33473.33473.39054.17473.3905
H62.45561.09414.17473.39053.39051.77911.7791
H72.45561.09413.39053.39054.17471.77911.7791
H82.45561.09413.39054.17473.39051.77911.7791

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.149 Si1 C2 H7 110.149
Si1 C2 H8 110.149 C2 Si1 Cl3 110.530
C2 Si1 Cl4 110.530 C2 Si1 Cl5 110.530
Cl3 Si1 Cl4 108.392 Cl3 Si1 Cl5 108.392
Cl4 Si1 Cl5 108.392 H6 C2 H7 108.785
H6 C2 H8 108.785 H7 C2 H8 108.785
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.274      
2 C -0.634      
3 Cl -0.088      
4 Cl -0.088      
5 Cl -0.088      
6 H 0.208      
7 H 0.208      
8 H 0.208      


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 2.341 2.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.585 0.000 0.000
y 0.000 -59.585 0.000
z 0.000 0.000 -54.478
Traceless
 xyz
x -2.553 0.000 0.000
y 0.000 -2.553 0.000
z 0.000 0.000 5.107
Polar
3z2-r210.214
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 10.190 0.000 0.000
y 0.000 10.190 0.000
z 0.000 0.000 9.291


<r2> (average value of r2) Å2
<r2> 285.559
(<r2>)1/2 16.898