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: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-1699.850366
Energy at 298.15K-1699.853830
HF Energy-1699.285869
Nuclear repulsion energy440.846803
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 MP2/3-21G*
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 3064 2915 0.36      
2 A1 1413 1345 34.13      
3 A1 791 753 84.33      
4 A1 473 450 20.77      
5 A1 244 232 16.43      
6 A2 186 177 0.00      
7 E 3149 2995 1.16      
7 E 3149 2995 1.16      
8 E 1545 1470 4.99      
8 E 1545 1470 4.99      
9 E 899 856 101.75      
9 E 899 856 101.75      
10 E 623 592 158.80      
10 E 623 592 158.80      
11 E 228 217 5.09      
11 E 228 217 5.09      
12 E 166 158 0.76      
12 E 166 158 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 9695.1 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 9222.9 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 MP2/3-21G*
ABC
0.05876 0.05876 0.04392

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.245
C2 0.000 0.000 2.100
Cl3 0.000 1.905 -0.460
Cl4 1.650 -0.952 -0.460
Cl5 -1.650 -0.952 -0.460
H6 0.000 -1.029 2.482
H7 0.891 0.515 2.482
H8 -0.891 0.515 2.482

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85522.03142.03142.03142.46182.46182.4618
C21.85523.19163.19163.19161.09751.09751.0975
Cl32.03143.19163.29933.29934.15493.37383.3738
Cl42.03143.19163.29933.29933.37383.37384.1549
Cl52.03143.19163.29933.29933.37384.15493.3738
H62.46181.09754.15493.37383.37381.78251.7825
H72.46181.09753.37383.37384.15491.78251.7825
H82.46181.09753.37384.15493.37381.78251.7825

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.324 Si1 C2 H7 110.324
Si1 C2 H8 110.324 C2 Si1 Cl3 110.325
C2 Si1 Cl4 110.325 C2 Si1 Cl5 110.325
Cl3 Si1 Cl4 108.604 Cl3 Si1 Cl5 108.604
Cl4 Si1 Cl5 108.604 H6 C2 H7 108.605
H6 C2 H8 108.605 H7 C2 H8 108.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability