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/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-1705.792921
Energy at 298.15K-1705.796014
HF Energy-1705.792921
Nuclear repulsion energy440.521143
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/cc-pVTZ
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 2949 2.44      
2 A1 1215 1202 38.67      
3 A1 766 758 65.88      
4 A1 446 441 17.60      
5 A1 221 218 9.29      
6 A2 152 151 0.00      
7 E 3082 3049 0.37      
7 E 3082 3049 0.37      
8 E 1365 1350 4.86      
8 E 1365 1350 4.86      
9 E 780 771 85.15      
9 E 780 771 85.17      
10 E 578 571 119.11      
10 E 578 571 119.16      
11 E 205 202 2.07      
11 E 205 202 2.08      
12 E 145 143 0.56      
12 E 145 143 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 9044.8 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 8946.2 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/cc-pVTZ
ABC
0.05872 0.05872 0.04385

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.262
C2 0.000 0.000 2.092
Cl3 0.000 1.906 -0.463
Cl4 1.651 -0.953 -0.463
Cl5 -1.651 -0.953 -0.463
H6 0.000 -1.033 2.466
H7 0.895 0.517 2.466
H8 -0.895 0.517 2.466

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.83072.03952.03952.03952.43412.43412.4341
C21.83073.18823.18823.18821.09851.09851.0985
Cl32.03953.18823.30193.30194.14953.36303.3630
Cl42.03953.18823.30193.30193.36303.36304.1495
Cl52.03953.18823.30193.30193.36304.14953.3630
H62.43411.09854.14953.36303.36301.78941.7894
H72.43411.09853.36303.36304.14951.78941.7894
H82.43411.09853.36304.14953.36301.78941.7894

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.867 Si1 C2 H7 109.867
Si1 C2 H8 109.867 C2 Si1 Cl3 110.817
C2 Si1 Cl4 110.817 C2 Si1 Cl5 110.817
Cl3 Si1 Cl4 108.092 Cl3 Si1 Cl5 108.092
Cl4 Si1 Cl5 108.092 H6 C2 H7 109.073
H6 C2 H8 109.073 H7 C2 H8 109.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.420      
2 C -0.425      
3 Cl -0.145      
4 Cl -0.145      
5 Cl -0.145      
6 H 0.147      
7 H 0.147      
8 H 0.147      


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 2.075 2.075
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.316 0.000 0.000
y 0.000 -58.316 0.000
z 0.000 0.000 -53.999
Traceless
 xyz
x -2.159 0.000 0.000
y 0.000 -2.159 0.000
z 0.000 0.000 4.317
Polar
3z2-r28.634
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 10.832 0.000 0.000
y 0.000 10.832 0.000
z 0.000 0.000 10.029


<r2> (average value of r2) Å2
<r2> 280.474
(<r2>)1/2 16.747