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Experimental data for SiCl3CH3 (methyltrichlorosilane)

22 02 02 11 45
Other names
Silane, trichloromethyl-; Monomethyltrichlorosilane; Trichloromethylsilane; Methylsilicochloroform; Silane, methyltrichloro-;
INChI INChIKey SMILES IUPAC name
InChI=1S/CH3Cl3Si/c1-5(2,3)4/h1H3 JLUFWMXJHAVVNN-UHFFFAOYSA-N C[Si](Cl)(Cl)Cl
State Conformation
1A1 C3V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -528.86   kJ mol-1 webbook
Hfg(0K) enthalpy of formation     kJ mol-1 webbook
Entropy (298.15K) entropy 351.09   J K-1 mol-1 webbook
Heat Capacity (298.15K) heat capacity 102.30   J K-1 mol-1 webbook
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1 2922   1969Tik/Kov:615-619      
2 A1 1272          
3 A1 763          
4 A1 458          
7 E 2992          
8 E 1416          
9 E 804          
10 E 580          

Calculated vibrational frequencies for SiCl3CH3 (methyltrichlorosilane).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.05903   1977Tak/Mat:1633

Calculated rotational constants for SiCl3CH3 (methyltrichlorosilane).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of methyltrichlorosilane

Point Group C3v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCSi 1.848 0.005 1 2 1998Kuc
rSiCl 2.026 0.005 1 3 1998Kuc
aCSiCl 110.3 0.5 2 1 3 1998Kuc
aClSiCl 108.6 0.5 3 1 4 1998Kuc

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for SiCl3CH3 (methyltrichlorosilane).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-Si 1
H-C 3
Si-Cl 3

Connectivity
Atom 1 Atom 2
Si1 C2
Si1 Cl3
Si1 Cl4
Si1 Cl5
C2 H6
C2 H7
C2 H8
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
11.360 0.030     webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A1 C3v True           C3v 1 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for SiCl3CH3 (methyltrichlorosilane).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A1 C3v True       C3v 1 1

Calculated electric quadrupole moments for SiCl3CH3 (methyltrichlorosilane).

References
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squib reference DOI
1969Tik/Kov:615-619 EN Tikhomirova, IF Kovalev, MG Voronkov, E Lukevics "Integral Intensities of vibrational bands in infrared absorption spectra of tetramethylsilane and methylchlorosilanes" Optika i spektroskopiia 27, 615-619, 1969  
1977Tak/Mat:1633 H Takeo, C Matsumura "The Microwave Spectra, Molecular Structures, and Quadrupole Coupling Constants of Methyltrichlorosilane and Trichlorosilane" Bulletin of the Chemical Society of Japan Vol. 50 (1977) No. 6 P 1633-1634 10.1246/bcsj.50.1633
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998 10.1007/978-3-642-45748-7 
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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