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All results from a given calculation for SiHCl3 (Trichlorosilane)

using model chemistry: PBEPBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-1670.056729
Energy at 298.15K-1670.058287
Nuclear repulsion energy333.955167
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 PBEPBE/6-31+G**
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 2250 2224 69.15      
2 A1 472 466 28.39      
3 A1 241 238 9.04      
4 E 769 760 141.30      
4 E 769 760 141.33      
5 E 576 570 148.22      
5 E 576 570 148.26      
6 E 167 165 2.53      
6 E 167 165 2.53      

Unscaled Zero Point Vibrational Energy (zpe) 2993.4 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 2959.3 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 PBEPBE/6-31+G**
ABC
0.07930 0.07930 0.04250

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.502
H2 0.000 0.000 1.985
Cl3 0.000 1.944 -0.177
Cl4 1.684 -0.972 -0.177
Cl5 -1.684 -0.972 -0.177

Atom - Atom Distances (Å)
  Si1 H2 Cl3 Cl4 Cl5
Si11.48322.05952.05952.0595
H21.48322.90782.90782.9078
Cl32.05952.90783.36793.3679
Cl42.05952.90783.36793.3679
Cl52.05952.90783.36793.3679

picture of Trichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 Cl3 109.243 H2 Si1 Cl4 109.243
H2 Si1 Cl5 109.243 Cl3 Si1 Cl4 109.699
Cl3 Si1 Cl5 109.699 Cl4 Si1 Cl5 109.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.278      
2 H -0.006      
3 Cl -0.091      
4 Cl -0.091      
5 Cl -0.091      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.091 1.091
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.368 0.000 0.000
y 0.000 9.369 0.000
z 0.000 0.000 6.963


<r2> (average value of r2) Å2
<r2> 234.396
(<r2>)1/2 15.310