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: QCISD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-1708.254103
Energy at 298.15K-1708.257381
HF Energy-1707.320900
Nuclear repulsion energy437.928779
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 QCISD/aug-cc-pVTZ
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 3056 2941 0.01      
2 A1 1317 1268 20.51      
3 A1 771 742 64.88      
4 A1 454 437 17.84      
5 A1 233 224 10.86      
6 A2 171 164 0.00      
7 E 3147 3029 1.22      
7 E 3147 3029 1.22      
8 E 1475 1419 2.79      
8 E 1475 1419 2.79      
9 E 832 801 72.25      
9 E 832 801 72.25      
10 E 587 565 141.36      
10 E 587 565 141.38      
11 E 217 209 3.71      
11 E 217 209 3.71      
12 E 154 148 0.42      
12 E 154 148 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 9412.9 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 9059.0 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 QCISD/aug-cc-pVTZ
ABC
0.05800 0.05800 0.04329

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.259
C2 0.000 0.000 2.108
Cl3 0.000 1.919 -0.465
Cl4 1.662 -0.959 -0.465
Cl5 -1.662 -0.959 -0.465
H6 0.000 -1.026 2.480
H7 0.888 0.513 2.480
H8 -0.888 0.513 2.480

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.84912.05082.05082.05082.44592.44592.4459
C21.84913.20993.20993.20991.09071.09071.0907
Cl32.05083.20993.32333.32334.16413.38193.3819
Cl42.05083.20993.32333.32333.38193.38194.1641
Cl52.05083.20993.32333.32333.38194.16413.3819
H62.44591.09074.16413.38193.38191.77621.7762
H72.44591.09073.38193.38194.16411.77621.7762
H82.44591.09073.38194.16413.38191.77621.7762

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.910 Si1 C2 H7 109.910
Si1 C2 H8 109.910 C2 Si1 Cl3 110.678
C2 Si1 Cl4 110.678 C2 Si1 Cl5 110.678
Cl3 Si1 Cl4 108.238 Cl3 Si1 Cl5 108.238
Cl4 Si1 Cl5 108.238 H6 C2 H7 109.029
H6 C2 H8 109.029 H7 C2 H8 109.029
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability