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All results from a given calculation for SiH3CCl3 ((trichloromethyl)silane)

using model chemistry: PBEPBE/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 PBEPBE/3-21G*
 hartrees
Energy at 0K-1701.215295
Energy at 298.15K-1701.218407
HF Energy-1701.215295
Nuclear repulsion energy430.878867
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/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 2229 2126 40.60      
2 A1 898 856 163.40      
3 A1 841 802 63.87      
4 A1 401 382 8.89      
5 A1 273 260 8.61      
6 A2 208 199 0.00      
7 E 2256 2151 70.63      
7 E 2256 2151 70.63      
8 E 908 865 46.53      
8 E 908 865 46.53      
9 E 674 643 26.92      
9 E 674 643 26.90      
10 E 566 539 116.83      
10 E 566 539 116.89      
11 E 259 247 0.06      
11 E 259 247 0.06      
12 E 156 148 0.00      
12 E 156 148 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 7241.6 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 6904.8 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/3-21G*
ABC
0.05331 0.05322 0.05322

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 1.879
C2 0.000 0.000 -0.040
H3 0.000 -1.425 2.325
H4 1.234 0.713 2.325
H5 -1.234 0.713 2.325
Cl6 0.000 1.719 -0.648
Cl7 1.489 -0.860 -0.648
Cl8 -1.489 -0.860 -0.648

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 Cl6 Cl7 Cl8
Si11.91851.49331.49331.49333.05623.05623.0562
C21.91852.76102.76102.76101.82371.82371.8237
H31.49332.76102.46842.46844.32733.37273.3727
H41.49332.76102.46842.46843.37273.37274.3273
H51.49332.76102.46842.46843.37274.32733.3727
Cl63.05621.82374.32733.37273.37272.97782.9778
Cl73.05621.82373.37273.37274.32732.97782.9778
Cl83.05621.82373.37274.32733.37272.97782.9778

picture of (trichloromethyl)silane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 Cl6 109.481 Si1 C2 Cl7 109.481
Si1 C2 Cl8 109.481 C2 Si1 H3 107.387
C2 Si1 H4 107.387 C2 Si1 H5 107.387
H3 Si1 H4 111.473 H3 Si1 H5 111.473
H4 Si1 H5 111.473 Cl6 C2 Cl7 109.462
Cl6 C2 Cl8 109.462 Cl7 C2 Cl8 109.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.412      
2 C -0.615      
3 H -0.002      
4 H -0.002      
5 H -0.002      
6 Cl 0.069      
7 Cl 0.069      
8 Cl 0.069      


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 1.677 1.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.094 0.000 0.000
y 0.000 -59.094 0.000
z 0.000 0.000 -56.035
Traceless
 xyz
x -1.529 0.000 0.000
y 0.000 -1.529 0.000
z 0.000 0.000 3.059
Polar
3z2-r26.118
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 9.712 0.000 0.000
y 0.000 9.713 0.000
z 0.000 0.000 8.543


<r2> (average value of r2) Å2
<r2> 280.168
(<r2>)1/2 16.738