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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: CISD/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 CISD/3-21G*
 hartrees
Energy at 0K-1699.805723
Energy at 298.15K-1699.809233
HF Energy-1699.286037
Nuclear repulsion energy441.072231
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 CISD/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 3109 2905 0.06      
2 A1 1450 1355 41.15      
3 A1 804 751 87.77      
4 A1 479 448 22.55      
5 A1 248 232 18.14      
6 A2 180 168 0.00      
7 E 3186 2977 1.57      
7 E 3186 2977 1.57      
8 E 1568 1465 6.11      
8 E 1568 1465 6.11      
9 E 914 854 104.43      
9 E 914 854 104.43      
10 E 628 587 168.74      
10 E 628 587 168.74      
11 E 233 217 5.88      
11 E 233 217 5.88      
12 E 170 158 0.82      
12 E 170 158 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 9832.5 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 9187.5 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 CISD/3-21G*
ABC
0.05882 0.05882 0.04395

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.247
C2 0.000 0.000 2.098
Cl3 0.000 1.904 -0.460
Cl4 1.649 -0.952 -0.460
Cl5 -1.649 -0.952 -0.460
H6 0.000 -1.024 2.481
H7 0.887 0.512 2.481
H8 -0.887 0.512 2.481

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.85122.03122.03122.03122.45752.45752.4575
C21.85123.18913.18913.18911.09341.09341.0934
Cl32.03123.18913.29813.29814.15033.37253.3725
Cl42.03123.18913.29813.29813.37253.37254.1503
Cl52.03123.18913.29813.29813.37254.15033.3725
H62.45751.09344.15033.37253.37251.77411.7741
H72.45751.09343.37253.37254.15031.77411.7741
H82.45751.09343.37254.15033.37251.77411.7741

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.487 Si1 C2 H7 110.487
Si1 C2 H8 110.487 C2 Si1 Cl3 110.370
C2 Si1 Cl4 110.370 C2 Si1 Cl5 110.370
Cl3 Si1 Cl4 108.557 Cl3 Si1 Cl5 108.557
Cl4 Si1 Cl5 108.557 H6 C2 H7 108.436
H6 C2 H8 108.436 H7 C2 H8 108.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability