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

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-1697.565559
Energy at 298.15K-1697.568755
HF Energy-1697.565559
Nuclear repulsion energy437.957778
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 LSDA/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 2227 2187 31.41      
2 A1 905 888 52.54      
3 A1 843 827 136.76      
4 A1 425 417 6.84      
5 A1 278 273 7.96      
6 A2 212 208 0.00      
7 E 2257 2216 52.92      
7 E 2257 2216 52.92      
8 E 889 873 42.03      
8 E 889 873 42.03      
9 E 697 684 53.44      
9 E 697 684 53.43      
10 E 581 570 79.30      
10 E 581 570 79.31      
11 E 264 260 0.01      
11 E 264 260 0.01      
12 E 156 153 0.00      
12 E 156 153 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 7287.4 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 7156.3 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 LSDA/3-21G*
ABC
0.05515 0.05515 0.05490

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 1.840
C2 0.000 0.000 -0.049
H3 0.000 -1.426 2.280
H4 1.235 0.713 2.280
H5 -1.235 0.713 2.280
Cl6 0.000 1.694 -0.634
Cl7 1.467 -0.847 -0.634
Cl8 -1.467 -0.847 -0.634

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 Cl6 Cl7 Cl8
Si11.88961.49261.49261.49262.99812.99812.9981
C21.88962.73162.73162.73161.79161.79161.7916
H31.49262.73162.47042.47044.26913.31343.3134
H41.49262.73162.47042.47043.31343.31344.2691
H51.49262.73162.47042.47043.31344.26913.3134
Cl62.99811.79164.26913.31343.31342.93352.9335
Cl72.99811.79163.31343.31344.26912.93352.9335
Cl82.99811.79163.31344.26913.31342.93352.9335

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 109.035 Si1 C2 Cl7 109.035
Si1 C2 Cl8 109.035 C2 Si1 H3 107.146
C2 Si1 H4 107.146 C2 Si1 H5 107.146
H3 Si1 H4 111.693 H3 Si1 H5 111.693
H4 Si1 H5 111.693 Cl6 C2 Cl7 109.904
Cl6 C2 Cl8 109.904 Cl7 C2 Cl8 109.904
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.291      
2 C -0.620      
3 H 0.028      
4 H 0.028      
5 H 0.028      
6 Cl 0.082      
7 Cl 0.082      
8 Cl 0.082      


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 1.513 1.513
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.842 0.000 0.000
y 0.000 -58.842 0.000
z 0.000 0.000 -56.122
Traceless
 xyz
x -1.360 0.000 0.000
y 0.000 -1.360 0.000
z 0.000 0.000 2.720
Polar
3z2-r25.440
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 9.494 0.000 0.000
y 0.000 9.494 0.000
z 0.000 0.000 8.424


<r2> (average value of r2) Å2
<r2> 272.085
(<r2>)1/2 16.495