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: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-1707.986892
Energy at 298.15K-1707.990171
HF Energy-1707.186151
Nuclear repulsion energy439.467229
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 MP2/6-31G(2df,p)
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 3109 2936 2.15      
2 A1 1312 1239 23.64      
3 A1 777 734 71.76      
4 A1 460 435 18.69      
5 A1 234 221 10.93      
6 A2 172 162 0.00      
7 E 3218 3039 0.03      
7 E 3218 3039 0.03      
8 E 1472 1390 2.49      
8 E 1472 1390 2.49      
9 E 824 778 93.14      
9 E 824 778 93.14      
10 E 598 565 142.75      
10 E 598 565 142.75      
11 E 218 206 3.15      
11 E 218 206 3.15      
12 E 154 146 0.59      
12 E 154 146 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 9515.5 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 8987.3 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 MP2/6-31G(2df,p)
ABC
0.05841 0.05841 0.04361

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

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 2.101
Cl3 0.000 1.912 -0.463
Cl4 1.656 -0.956 -0.463
Cl5 -1.656 -0.956 -0.463
H6 0.000 -1.025 2.475
H7 0.888 0.513 2.475
H8 -0.888 0.513 2.475

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.84332.04312.04312.04312.44242.44242.4424
C21.84333.19843.19843.19841.09101.09101.0910
Cl32.04313.19843.31103.31104.15403.37303.3730
Cl42.04313.19843.31103.31103.37303.37304.1540
Cl52.04313.19843.31103.31103.37304.15403.3730
H62.44241.09104.15403.37303.37301.77541.7754
H72.44241.09103.37303.37304.15401.77541.7754
H82.44241.09103.37304.15403.37301.77541.7754

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.030 Si1 C2 H7 110.030
Si1 C2 H8 110.030 C2 Si1 Cl3 110.666
C2 Si1 Cl4 110.666 C2 Si1 Cl5 110.666
Cl3 Si1 Cl4 108.251 Cl3 Si1 Cl5 108.251
Cl4 Si1 Cl5 108.251 H6 C2 H7 108.907
H6 C2 H8 108.907 H7 C2 H8 108.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability