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

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-55.013295
Energy at 298.15K-55.016959
HF Energy-55.013295
Nuclear repulsion energy86.889355
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/CEP-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 2355 2115 52.01      
2 A1 1006 903 234.94      
3 A1 953 856 77.90      
4 A1 457 410 10.01      
5 A1 299 268 12.64      
6 A2 192 173 0.00      
7 E 2372 2130 122.44      
7 E 2372 2130 122.44      
8 E 1016 912 85.63      
8 E 1016 912 85.63      
9 E 872 783 70.15      
9 E 872 783 70.15      
10 E 668 599 66.48      
10 E 668 599 66.48      
11 E 293 263 0.04      
11 E 293 263 0.04      
12 E 177 159 0.05      
12 E 177 159 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 8028.3 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 7209.4 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/CEP-31G*
ABC
0.05544 0.05405 0.05405

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 1.889
C2 0.000 0.000 -0.049
H3 0.000 -1.415 2.322
H4 1.226 0.708 2.322
H5 -1.226 0.708 2.322
Cl6 0.000 1.685 -0.649
Cl7 1.460 -0.843 -0.649
Cl8 -1.460 -0.843 -0.649

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 Cl6 Cl7 Cl8
Si11.93751.48011.48011.48013.04703.04703.0470
C21.93752.76082.76082.76081.78931.78931.7893
H31.48012.76082.45152.45154.29453.35963.3596
H41.48012.76082.45152.45153.35963.35964.2945
H51.48012.76082.45152.45153.35964.29453.3596
Cl63.04701.78934.29453.35963.35962.91922.9192
Cl73.04701.78933.35963.35964.29452.91922.9192
Cl83.04701.78933.35964.29453.35962.91922.9192

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 109.622 Si1 C2 Cl7 109.622
Si1 C2 Cl8 109.622 C2 Si1 H3 107.005
C2 Si1 H4 107.005 C2 Si1 H5 107.005
H3 Si1 H4 111.821 H3 Si1 H5 111.821
H4 Si1 H5 111.821 Cl6 C2 Cl7 109.320
Cl6 C2 Cl8 109.320 Cl7 C2 Cl8 109.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.213      
2 C -0.019      
3 H 0.002      
4 H 0.002      
5 H 0.002      
6 Cl -0.067      
7 Cl -0.067      
8 Cl -0.067      


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 2.266 2.266
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.295 0.000 0.000
y 0.000 -56.295 0.000
z 0.000 0.000 -52.590
Traceless
 xyz
x -1.852 0.000 0.000
y 0.000 -1.852 0.000
z 0.000 0.000 3.705
Polar
3z2-r27.410
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 9.021 0.000 0.000
y 0.000 9.021 0.000
z 0.000 0.000 7.497


<r2> (average value of r2) Å2
<r2> 139.364
(<r2>)1/2 11.805