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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-55.866408
Energy at 298.15K-55.869676
HF Energy-55.230033
Nuclear repulsion energy81.671386
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 MP2/CEP-121G*
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 3073 2928 0.11      
2 A1 1344 1281 30.57      
3 A1 769 733 72.44      
4 A1 451 430 22.23      
5 A1 232 221 13.70      
6 A2 178 170 0.00      
7 E 3185 3035 1.55      
7 E 3185 3035 1.55      
8 E 1496 1425 6.31      
8 E 1496 1425 6.31      
9 E 850 810 83.54      
9 E 850 810 83.54      
10 E 591 563 165.06      
10 E 591 563 165.06      
11 E 217 207 4.52      
11 E 217 207 4.52      
12 E 152 145 0.45      
12 E 152 145 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 9514.6 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 9065.5 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 MP2/CEP-121G*
ABC
0.05744 0.05744 0.04280

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

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 2.116
Cl3 0.000 1.930 -0.466
Cl4 1.671 -0.965 -0.466
Cl5 -1.671 -0.965 -0.466
H6 0.000 -1.029 2.489
H7 0.891 0.514 2.489
H8 -0.891 0.514 2.489

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85772.06112.06112.06112.45652.45652.4565
C21.85773.22323.22323.22321.09431.09431.0943
Cl32.06113.22323.34243.34244.18133.39523.3952
Cl42.06113.22323.34243.34243.39523.39524.1813
Cl52.06113.22323.34243.34243.39524.18133.3952
H62.45651.09434.18133.39523.39521.78191.7819
H72.45651.09433.39523.39524.18131.78191.7819
H82.45651.09433.39524.18133.39521.78191.7819

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.927 Si1 C2 H7 109.927
Si1 C2 H8 109.927 C2 Si1 Cl3 110.566
C2 Si1 Cl4 110.566 C2 Si1 Cl5 110.566
Cl3 Si1 Cl4 108.354 Cl3 Si1 Cl5 108.354
Cl4 Si1 Cl5 108.354 H6 C2 H7 109.012
H6 C2 H8 109.012 H7 C2 H8 109.012
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability