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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-1698.977521
Energy at 298.15K-1698.980672
HF Energy-1698.637563
Nuclear repulsion energy417.336362
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 QCISD/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 2179 2112 36.07      
2 A1 905 877 260.50      
3 A1 854 828 16.66      
4 A1 373 362 11.51      
5 A1 261 253 8.35      
6 A2 194 188 0.00      
7 E 2199 2131 66.88      
7 E 2199 2131 66.88      
8 E 923 894 55.78      
8 E 923 894 55.78      
9 E 716 694 13.63      
9 E 716 694 13.63      
10 E 593 575 78.12      
10 E 593 575 78.12      
11 E 248 240 0.19      
11 E 248 240 0.19      
12 E 165 160 0.01      
12 E 165 160 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7227.0 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 7004.4 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 QCISD/3-21G
ABC
0.05002 0.04981 0.04981

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 1.945
C2 0.000 0.000 -0.006
H3 0.000 -1.435 2.379
H4 1.243 0.718 2.379
H5 -1.243 0.718 2.379
Cl6 0.000 1.776 -0.673
Cl7 1.538 -0.888 -0.673
Cl8 -1.538 -0.888 -0.673

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 Cl6 Cl7 Cl8
Si11.95071.49951.49951.49953.16343.16343.1634
C21.95072.78312.78312.78311.89691.89691.8969
H31.49952.78312.48632.48634.42993.46093.4609
H41.49952.78312.48632.48633.46093.46094.4299
H51.49952.78312.48632.48633.46094.42993.4609
Cl63.16341.89694.42993.46093.46093.07553.0755
Cl73.16341.89693.46093.46094.42993.07553.0755
Cl83.16341.89693.46094.42993.46093.07553.0755

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 110.599 Si1 C2 Cl7 110.599
Si1 C2 Cl8 110.599 C2 Si1 H3 106.810
C2 Si1 H4 106.810 C2 Si1 H5 106.810
H3 Si1 H4 111.996 H3 Si1 H5 111.996
H4 Si1 H5 111.996 Cl6 C2 Cl7 108.321
Cl6 C2 Cl8 108.321 Cl7 C2 Cl8 108.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability