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: PBE1PBE/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 PBE1PBE/6-31+G**
 hartrees
Energy at 0K-1709.491817
Energy at 298.15K-1709.495063
HF Energy-1709.491817
Nuclear repulsion energy437.877739
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 PBE1PBE/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 3075 2937 0.05      
2 A1 1307 1248 31.33      
3 A1 763 729 74.31      
4 A1 450 430 21.98      
5 A1 232 222 13.99      
6 A2 172 165 0.00      
7 E 3177 3035 0.12      
7 E 3177 3035 0.12      
8 E 1450 1385 5.65      
8 E 1450 1385 5.65      
9 E 831 793 91.85      
9 E 830 793 91.83      
10 E 586 559 155.95      
10 E 586 559 155.93      
11 E 217 208 3.78      
11 E 217 208 3.78      
12 E 155 148 0.71      
12 E 155 148 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 9414.5 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 8993.7 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 PBE1PBE/6-31+G**
ABC
0.05801 0.05801 0.04323

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/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 2.105
Cl3 0.000 1.920 -0.464
Cl4 1.663 -0.960 -0.464
Cl5 -1.663 -0.960 -0.464
H6 0.000 -1.027 2.482
H7 0.890 0.514 2.482
H8 -0.890 0.514 2.482

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85012.05012.05012.05012.45222.45222.4522
C21.85013.20703.20703.20701.09411.09411.0941
Cl32.05013.20703.32553.32554.16663.38293.3829
Cl42.05013.20703.32553.32553.38293.38294.1666
Cl52.05013.20703.32553.32553.38294.16663.3829
H62.45221.09414.16663.38293.38291.77921.7792
H72.45221.09413.38293.38294.16661.77921.7792
H82.45221.09413.38294.16663.38291.77921.7792

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.132 Si1 C2 H7 110.132
Si1 C2 H8 110.132 C2 Si1 Cl3 110.520
C2 Si1 Cl4 110.520 C2 Si1 Cl5 110.520
Cl3 Si1 Cl4 108.402 Cl3 Si1 Cl5 108.402
Cl4 Si1 Cl5 108.403 H6 C2 H7 108.802
H6 C2 H8 108.802 H7 C2 H8 108.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.282      
2 C -0.660      
3 Cl -0.088      
4 Cl -0.088      
5 Cl -0.088      
6 H 0.214      
7 H 0.214      
8 H 0.214      


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 2.324 2.324
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.695 0.000 0.000
y 0.000 -59.695 0.000
z 0.000 0.000 -54.643
Traceless
 xyz
x -2.526 0.000 0.000
y 0.000 -2.526 0.000
z 0.000 0.000 5.052
Polar
3z2-r210.104
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 10.119 0.000 0.000
y 0.000 10.120 0.000
z 0.000 0.000 9.250


<r2> (average value of r2) Å2
<r2> 284.341
(<r2>)1/2 16.862