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All results from a given calculation for SiHCl3 (Trichlorosilane)

using model chemistry: HF/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 HF/cc-pVTZ
 hartrees
Energy at 0K-1668.251195
Energy at 298.15K-1668.253008
Nuclear repulsion energy337.614435
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 HF/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 2429 2211 74.47      
2 A1 515 468 34.03      
3 A1 267 243 11.01      
4 E 871 793 155.17      
4 E 871 793 155.17      
5 E 619 564 173.78      
5 E 619 564 173.78      
6 E 185 168 2.59      
6 E 185 168 2.59      

Unscaled Zero Point Vibrational Energy (zpe) 3280.5 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 2985.6 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 HF/cc-pVTZ
ABC
0.08110 0.08110 0.04348

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.503
H2 0.000 0.000 1.959
Cl3 0.000 1.922 -0.176
Cl4 1.665 -0.961 -0.176
Cl5 -1.665 -0.961 -0.176

Atom - Atom Distances (Å)
  Si1 H2 Cl3 Cl4 Cl5
Si11.45632.03872.03872.0387
H21.45632.87322.87322.8732
Cl32.03872.87323.32943.3294
Cl42.03872.87323.32943.3294
Cl52.03872.87323.32943.3294

picture of Trichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 Cl3 109.458 H2 Si1 Cl4 109.458
H2 Si1 Cl5 109.458 Cl3 Si1 Cl4 109.485
Cl3 Si1 Cl5 109.485 Cl4 Si1 Cl5 109.484
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.671 0.490 3.163 0.300
2 H -0.006 -0.044 -0.726 0.016
3 Cl -0.222 -0.149 -0.814 -0.107
4 Cl -0.222 -0.149 -0.814 -0.105
5 Cl -0.222 -0.149 -0.814 -0.104


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 1.019 1.019
CHELPG        
AIM 0.000 0.000 -0.752 0.752
ESP -0.004 -0.017 1.144 1.144


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.633 0.000 0.000
y 0.000 -52.633 0.000
z 0.000 0.000 -50.008
Traceless
 xyz
x -1.312 0.000 0.000
y 0.000 -1.312 0.000
z 0.000 0.000 2.625
Polar
3z2-r25.250
x2-y20.000
xy0.000
xz0.000
yz0.000


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