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All results from a given calculation for SiHCl3 (Trichlorosilane)

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-1670.196983
Energy at 298.15K-1670.198656
HF Energy-1670.196983
Nuclear repulsion energy337.107682
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 PBE1PBE/6-31G*
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 2351 2234 82.62      
2 A1 497 473 33.64      
3 A1 253 241 12.03      
4 E 810 770 166.60      
4 E 810 770 166.62      
5 E 609 579 152.24      
5 E 609 579 152.24      
6 E 175 166 2.96      
6 E 175 166 2.96      

Unscaled Zero Point Vibrational Energy (zpe) 3144.6 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 2988.3 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 PBE1PBE/6-31G*
ABC
0.08081 0.08081 0.04333

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.499
H2 0.000 0.000 1.971
Cl3 0.000 1.926 -0.176
Cl4 1.668 -0.963 -0.176
Cl5 -1.668 -0.963 -0.176

Atom - Atom Distances (Å)
  Si1 H2 Cl3 Cl4 Cl5
Si11.47192.04052.04052.0405
H21.47192.88382.88382.8838
Cl32.04052.88383.33553.3355
Cl42.04052.88383.33553.3355
Cl52.04052.88383.33553.3355

picture of Trichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 Cl3 109.305 H2 Si1 Cl4 109.305
H2 Si1 Cl5 109.305 Cl3 Si1 Cl4 109.637
Cl3 Si1 Cl5 109.637 Cl4 Si1 Cl5 109.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.566      
2 H -0.006      
3 Cl -0.187      
4 Cl -0.187      
5 Cl -0.187      


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 1.141 1.141
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.738 0.000 0.000
y 0.000 -52.738 0.000
z 0.000 0.000 -49.615
Traceless
 xyz
x -1.562 0.000 0.000
y 0.000 -1.562 0.000
z 0.000 0.000 3.124
Polar
3z2-r26.248
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.710 0.000 0.000
y 0.000 7.711 0.000
z 0.000 0.000 5.590


<r2> (average value of r2) Å2
<r2> 230.369
(<r2>)1/2 15.178