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: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-1710.051419
Energy at 298.15K-1710.054679
HF Energy-1710.051419
Nuclear repulsion energy437.790317
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 B3PW91/6-311G*
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 3052 2938 0.00      
2 A1 1325 1275 33.61      
3 A1 761 732 76.79      
4 A1 443 427 24.14      
5 A1 235 227 13.77      
6 A2 174 167 0.00      
7 E 3140 3023 0.76      
7 E 3140 3023 0.76      
8 E 1463 1408 6.21      
8 E 1463 1408 6.21      
9 E 843 811 92.71      
9 E 843 811 92.70      
10 E 573 551 166.09      
10 E 573 551 166.11      
11 E 221 213 3.95      
11 E 221 213 3.95      
12 E 158 152 0.48      
12 E 158 152 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 9392.0 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 9041.7 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 B3PW91/6-311G*
ABC
0.05797 0.05797 0.04325

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.258
C2 0.000 0.000 2.106
Cl3 0.000 1.920 -0.465
Cl4 1.662 -0.960 -0.465
Cl5 -1.662 -0.960 -0.465
H6 0.000 -1.024 2.488
H7 0.887 0.512 2.488
H8 -0.887 0.512 2.488

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.84792.05112.05112.05112.45382.45382.4538
C21.84793.20823.20823.20821.09291.09291.0929
Cl32.05113.20823.32493.32494.16923.38903.3890
Cl42.05113.20823.32493.32493.38903.38904.1692
Cl52.05113.20823.32493.32493.38904.16923.3890
H62.45381.09294.16923.38903.38901.77351.7735
H72.45381.09293.38903.38904.16921.77351.7735
H82.45381.09293.38904.16923.38901.77351.7735

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.461 Si1 C2 H7 110.461
Si1 C2 H8 110.461 C2 Si1 Cl3 110.627
C2 Si1 Cl4 110.627 C2 Si1 Cl5 110.627
Cl3 Si1 Cl4 108.292 Cl3 Si1 Cl5 108.292
Cl4 Si1 Cl5 108.292 H6 C2 H7 108.464
H6 C2 H8 108.464 H7 C2 H8 108.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.939      
2 C -0.981      
3 Cl -0.258      
4 Cl -0.258      
5 Cl -0.258      
6 H 0.272      
7 H 0.272      
8 H 0.272      


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 2.440 2.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.482 0.000 0.000
y 0.000 -60.482 0.000
z 0.000 0.000 -55.078
Traceless
 xyz
x -2.702 0.000 0.000
y 0.000 -2.702 0.000
z 0.000 0.000 5.404
Polar
3z2-r210.808
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 9.661 0.000 0.000
y 0.000 9.661 0.000
z 0.000 0.000 8.569


<r2> (average value of r2) Å2
<r2> 284.851
(<r2>)1/2 16.878