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: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-1709.144074
Energy at 298.15K-1709.147209
HF Energy-1709.144074
Nuclear repulsion energy432.762697
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/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 2196 2166 47.66      
2 A1 891 879 144.33      
3 A1 839 828 80.50      
4 A1 412 407 8.31      
5 A1 275 271 9.80      
6 A2 187 184 0.00      
7 E 2223 2192 87.60      
7 E 2223 2192 87.60      
8 E 905 893 48.66      
8 E 905 893 48.66      
9 E 702 692 64.18      
9 E 701 692 64.17      
10 E 578 570 85.24      
10 E 578 570 85.30      
11 E 264 260 0.08      
11 E 264 260 0.08      
12 E 152 150 0.00      
12 E 152 150 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 7223.4 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 7124.5 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/6-31G**
ABC
0.05409 0.05352 0.05352

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 1.883
C2 0.000 0.000 -0.051
H3 0.000 -1.424 2.331
H4 1.234 0.712 2.331
H5 -1.234 0.712 2.331
Cl6 0.000 1.707 -0.648
Cl7 1.478 -0.853 -0.648
Cl8 -1.478 -0.853 -0.648

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 Cl6 Cl7 Cl8
Si11.93331.49331.49331.49333.05233.05233.0523
C21.93332.77512.77512.77511.80801.80801.8080
H31.49332.77512.46712.46714.32173.37413.3741
H41.49332.77512.46712.46713.37413.37414.3217
H51.49332.77512.46712.46713.37414.32173.3741
Cl63.05231.80804.32173.37413.37412.95582.9558
Cl73.05231.80803.37413.37414.32172.95582.9558
Cl83.05231.80803.37414.32173.37412.95582.9558

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 109.291 Si1 C2 Cl7 109.291
Si1 C2 Cl8 109.291 C2 Si1 H3 107.471
C2 Si1 H4 107.471 C2 Si1 H5 107.471
H3 Si1 H4 111.395 H3 Si1 H5 111.395
H4 Si1 H5 111.395 Cl6 C2 Cl7 109.650
Cl6 C2 Cl8 109.650 Cl7 C2 Cl8 109.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.403      
2 C -0.479      
3 H -0.033      
4 H -0.033      
5 H -0.033      
6 Cl 0.058      
7 Cl 0.058      
8 Cl 0.058      


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 1.617 1.617
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.490 0.000 0.000
y 0.000 -58.490 0.000
z 0.000 0.000 -55.629
Traceless
 xyz
x -1.430 0.000 0.000
y 0.000 -1.430 0.000
z 0.000 0.000 2.861
Polar
3z2-r25.722
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 9.976 0.000 0.000
y 0.000 9.976 0.000
z 0.000 0.000 9.156


<r2> (average value of r2) Å2
<r2> 277.895
(<r2>)1/2 16.670