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/6-31G*

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/6-31G*
 hartrees
Energy at 0K-1709.483941
Energy at 298.15K-1709.487184
HF Energy-1709.483941
Nuclear repulsion energy437.754433
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/6-31G*
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 3084 2931 0.56      
2 A1 1333 1267 31.63      
3 A1 766 728 76.58      
4 A1 452 429 21.81      
5 A1 234 223 14.17      
6 A2 168 160 0.00      
7 E 3182 3023 0.16      
7 E 3182 3023 0.16      
8 E 1475 1402 5.10      
8 E 1475 1402 5.10      
9 E 843 801 101.62      
9 E 843 801 101.61      
10 E 591 562 154.34      
10 E 591 562 154.36      
11 E 218 208 3.54      
11 E 218 208 3.54      
12 E 155 147 0.73      
12 E 155 147 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 9483.2 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 9011.9 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/6-31G*
ABC
0.05797 0.05797 0.04322

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.254
C2 0.000 0.000 2.107
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 2.484
H7 0.890 0.514 2.484
H8 -0.890 0.514 2.484

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85222.05032.05032.05032.45532.45532.4553
C21.85223.20863.20863.20861.09461.09461.0946
Cl32.05033.20863.32613.32614.16913.38573.3857
Cl42.05033.20863.32613.32613.38573.38574.1691
Cl52.05033.20863.32613.32613.38574.16913.3857
H62.45531.09464.16913.38573.38571.77941.7794
H72.45531.09463.38573.38574.16911.77941.7794
H82.45531.09463.38574.16913.38571.77941.7794

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.192 Si1 C2 H7 110.192
Si1 C2 H8 110.192 C2 Si1 Cl3 110.509
C2 Si1 Cl4 110.509 C2 Si1 Cl5 110.509
Cl3 Si1 Cl4 108.414 Cl3 Si1 Cl5 108.414
Cl4 Si1 Cl5 108.414 H6 C2 H7 108.741
H6 C2 H8 108.741 H7 C2 H8 108.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.641      
2 C -0.748      
3 Cl -0.196      
4 Cl -0.196      
5 Cl -0.196      
6 H 0.232      
7 H 0.232      
8 H 0.232      


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 2.420 2.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.426 0.000 0.000
y 0.000 -59.426 0.000
z 0.000 0.000 -54.063
Traceless
 xyz
x -2.682 0.000 0.000
y 0.000 -2.682 0.000
z 0.000 0.000 5.364
Polar
3z2-r210.727
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 8.914 0.000 0.000
y 0.000 8.915 0.000
z 0.000 0.000 7.835


<r2> (average value of r2) Å2
<r2> 284.257
(<r2>)1/2 16.860