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: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-1701.623978
Energy at 298.15K-1701.627154
HF Energy-1701.623978
Nuclear repulsion energy421.130409
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 B3LYP/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 2226 2148 39.63      
2 A1 902 870 204.35      
3 A1 860 830 46.08      
4 A1 385 372 13.04      
5 A1 265 256 9.37      
6 A2 203 196 0.00      
7 E 2253 2174 75.76      
7 E 2253 2174 75.76      
8 E 925 893 52.96      
8 E 925 893 52.95      
9 E 703 679 29.27      
9 E 703 679 29.28      
10 E 589 568 109.21      
10 E 589 568 109.19      
11 E 252 243 0.04      
11 E 252 243 0.04      
12 E 164 159 0.00      
12 E 164 159 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 7307.3 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 7050.8 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 B3LYP/3-21G
ABC
0.05094 0.05073 0.05073

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 1.927
C2 0.000 0.000 -0.010
H3 0.000 -1.424 2.362
H4 1.233 0.712 2.362
H5 -1.233 0.712 2.362
Cl6 0.000 1.760 -0.667
Cl7 1.524 -0.880 -0.667
Cl8 -1.524 -0.880 -0.667

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 Cl6 Cl7 Cl8
Si11.93721.48861.48861.48863.13433.13433.1343
C21.93722.76622.76622.76621.87811.87811.8781
H31.48862.76622.46602.46604.39373.43353.4335
H41.48862.76622.46602.46603.43353.43354.3937
H51.48862.76622.46602.46603.43354.39373.4335
Cl63.13431.87814.39373.43353.43353.04773.0477
Cl73.13431.87813.43353.43354.39373.04773.0477
Cl83.13431.87813.43354.39373.43353.04773.0477

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 110.465 Si1 C2 Cl7 110.465
Si1 C2 Cl8 110.465 C2 Si1 H3 106.971
C2 Si1 H4 106.971 C2 Si1 H5 106.971
H3 Si1 H4 111.851 H3 Si1 H5 111.851
H4 Si1 H5 111.851 Cl6 C2 Cl7 108.460
Cl6 C2 Cl8 108.460 Cl7 C2 Cl8 108.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.758      
2 C -0.820      
3 H -0.080      
4 H -0.080      
5 H -0.080      
6 Cl 0.100      
7 Cl 0.100      
8 Cl 0.100      


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 2.472 2.472
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -61.011 0.000 0.000
y 0.000 -61.011 0.000
z 0.000 0.000 -56.034
Traceless
 xyz
x -2.489 0.000 0.000
y 0.000 -2.489 0.000
z 0.000 0.000 4.978
Polar
3z2-r29.955
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 9.502 0.000 0.000
y 0.000 9.502 0.000
z 0.000 0.000 7.676


<r2> (average value of r2) Å2
<r2> 292.450
(<r2>)1/2 17.101