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: LSDA/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 LSDA/6-311G*
 hartrees
Energy at 0K-1705.750200
Energy at 298.15K-1705.753380
HF Energy-1705.750200
Nuclear repulsion energy440.520392
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/6-311G*
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 2982 2934 2.06      
2 A1 1261 1241 55.79      
3 A1 773 760 72.02      
4 A1 445 438 22.26      
5 A1 228 224 12.23      
6 A2 172 169 0.00      
7 E 3078 3028 0.25      
7 E 3078 3028 0.25      
8 E 1392 1369 8.91      
8 E 1392 1369 8.91      
9 E 807 794 101.70      
9 E 807 794 101.74      
10 E 576 566 145.12      
10 E 576 566 145.20      
11 E 212 209 3.28      
11 E 212 209 3.29      
12 E 152 150 0.43      
12 E 152 150 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 9146.6 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 8997.5 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/6-311G*
ABC
0.05876 0.05876 0.04377

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.257
C2 0.000 0.000 2.086
Cl3 0.000 1.908 -0.461
Cl4 1.652 -0.954 -0.461
Cl5 -1.652 -0.954 -0.461
H6 0.000 -1.031 2.470
H7 0.893 0.516 2.470
H8 -0.893 0.516 2.470

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.82852.03882.03882.03882.44172.44172.4417
C21.82853.18253.18253.18251.10081.10081.1008
Cl32.03883.18253.30473.30474.15163.36633.3663
Cl42.03883.18253.30473.30473.36633.36634.1516
Cl52.03883.18253.30473.30473.36634.15163.3663
H62.44171.10084.15163.36633.36631.78641.7864
H72.44171.10083.36633.36634.15161.78641.7864
H82.44171.10083.36634.15163.36631.78641.7864

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.455 Si1 C2 H7 110.455
Si1 C2 H8 110.455 C2 Si1 Cl3 110.639
C2 Si1 Cl4 110.639 C2 Si1 Cl5 110.639
Cl3 Si1 Cl4 108.279 Cl3 Si1 Cl5 108.279
Cl4 Si1 Cl5 108.279 H6 C2 H7 108.470
H6 C2 H8 108.470 H7 C2 H8 108.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.771      
2 C -1.017      
3 Cl -0.211      
4 Cl -0.211      
5 Cl -0.211      
6 H 0.294      
7 H 0.294      
8 H 0.294      


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 2.432 2.432
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.483 0.000 0.000
y 0.000 -60.483 0.000
z 0.000 0.000 -55.172
Traceless
 xyz
x -2.656 0.000 0.000
y 0.000 -2.656 0.000
z 0.000 0.000 5.312
Polar
3z2-r210.623
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 10.066 0.000 0.000
y 0.000 10.066 0.000
z 0.000 0.000 8.975


<r2> (average value of r2) Å2
<r2> 281.715
(<r2>)1/2 16.784