return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-1709.279872
Energy at 298.15K-1709.283259
HF Energy-1709.077164
Nuclear repulsion energy435.494856
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 B2PLYP/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 2314 2196 54.19      
2 A1 949 900 241.34      
3 A1 888 843 48.38      
4 A1 430 408 7.96      
5 A1 287 273 10.07      
6 A2 190 180 0.00      
7 E 2337 2219 109.82      
7 E 2337 2219 109.83      
8 E 963 914 65.21      
8 E 963 914 65.21      
9 E 763 725 51.11      
9 E 763 725 51.11      
10 E 619 587 75.53      
10 E 619 587 75.52      
11 E 278 263 0.00      
11 E 278 263 0.00      
12 E 167 158 0.01      
12 E 167 158 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7655.3 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 7266.4 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 B2PLYP/6-31G*
ABC
0.05497 0.05408 0.05408

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

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 -0.047
H3 0.000 -1.410 2.319
H4 1.221 0.705 2.319
H5 -1.221 0.705 2.319
Cl6 0.000 1.693 -0.647
Cl7 1.466 -0.846 -0.647
Cl8 -1.466 -0.846 -0.647

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 Cl6 Cl7 Cl8
Si11.92561.47751.47751.47753.04053.04053.0405
C21.92562.75432.75432.75431.79611.79611.7961
H31.47752.75432.44282.44284.29263.35613.3561
H41.47752.75432.44282.44283.35613.35614.2926
H51.47752.75432.44282.44283.35614.29263.3561
Cl63.04051.79614.29263.35613.35612.93222.9322
Cl73.04051.79613.35613.35614.29262.93222.9322
Cl83.04051.79613.35614.29263.35612.93222.9322

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 109.516 Si1 C2 Cl7 109.516
Si1 C2 Cl8 109.516 C2 Si1 H3 107.335
C2 Si1 H4 107.335 C2 Si1 H5 107.335
H3 Si1 H4 111.520 H3 Si1 H5 111.520
H4 Si1 H5 111.520 Cl6 C2 Cl7 109.426
Cl6 C2 Cl8 109.426 Cl7 C2 Cl8 109.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.498      
2 C -0.440      
3 H -0.054      
4 H -0.054      
5 H -0.054      
6 Cl 0.035      
7 Cl 0.035      
8 Cl 0.035      


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 1.780 1.780
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.117 0.000 0.000
y 0.000 -59.117 0.000
z 0.000 0.000 -55.856
Traceless
 xyz
x -1.630 0.000 0.000
y 0.000 -1.630 0.000
z 0.000 0.000 3.260
Polar
3z2-r26.521
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 9.388 0.000 0.000
y 0.000 9.388 0.000
z 0.000 0.000 8.369


<r2> (average value of r2) Å2
<r2> 275.277
(<r2>)1/2 16.591