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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-55.824240
Energy at 298.15K-55.827518
HF Energy-55.224585
Nuclear repulsion energy81.488677
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-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 3093 2937 0.49      
2 A1 1338 1271 31.55      
3 A1 769 730 67.72      
4 A1 453 430 22.79      
5 A1 235 223 14.49      
6 A2 182 173 0.00      
7 E 3210 3047 2.80      
7 E 3210 3047 2.80      
8 E 1486 1411 5.66      
8 E 1486 1411 5.66      
9 E 848 805 89.99      
9 E 848 805 89.99      
10 E 592 562 164.45      
10 E 592 562 164.45      
11 E 219 208 4.52      
11 E 219 208 4.52      
12 E 157 149 0.58      
12 E 157 149 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 9546.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9063.7 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 MP2/CEP-31G*
ABC
0.05725 0.05725 0.04271

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

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 2.123
Cl3 0.000 1.932 -0.467
Cl4 1.673 -0.966 -0.467
Cl5 -1.673 -0.966 -0.467
H6 0.000 -1.038 2.495
H7 0.899 0.519 2.495
H8 -0.899 0.519 2.495

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.86562.06302.06302.06302.46702.46702.4670
C21.86563.23123.23123.23121.10271.10271.1027
Cl32.06303.23123.34563.34564.19473.40313.4031
Cl42.06303.23123.34563.34563.40313.40314.1947
Cl52.06303.23123.34563.34563.40314.19473.4031
H62.46701.10274.19473.40313.40311.79781.7978
H72.46701.10273.40313.40314.19471.79781.7978
H82.46701.10273.40314.19473.40311.79781.7978

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.737 Si1 C2 H7 109.737
Si1 C2 H8 109.737 C2 Si1 Cl3 110.565
C2 Si1 Cl4 110.565 C2 Si1 Cl5 110.565
Cl3 Si1 Cl4 108.355 Cl3 Si1 Cl5 108.355
Cl4 Si1 Cl5 108.355 H6 C2 H7 109.205
H6 C2 H8 109.205 H7 C2 H8 109.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability