Silicon sulfide | SSHADE

Molecule

Name: Silicon sulfide

Name and identifiers

IUPAC name: silicon(IV) sulfide
Secondary names: Silicon disulfide, SiS2, silicon(IV) sulfide
InChI: InChI=1S/S2Si/c1-3-2
InChI key: KHDSWONFYIAAPE-UHFFFAOYSA-N
CAS number: 13759-10-9
Comments: The symmetry and polarity change with the number of SiS2 in the large molecule

Structure and atomic composition

Formula: $SiS_2$
Chemical formula: SiS2
Structural formula: S=[Si]=S
Charge: 0
Unpaired electrons: 0

	Atom	Name	Number
	$Si$	Silicon	1
	$S$	Sulfur	2

Relations

no

Isotopic composition

Isotope mixture type: terrestrial abundance

Nuclear spin isomers

Spin type: unique
Spin quantum numbers: 0

Molar mass: 92.218 $g/mol$
State STP: solid
Protic: aprotic
Polarity: polar

Fundamental vibration modes

Molecule symmetry

Dinfh

Case

linear-triatomic

Vibrations number

4

Vibrations

Label	Mode	Bond	Symmetry	Degeneracy	Fundamental frequency	Observed frequency	Observed frequency	Harmonic frequency	Activity IR	Activity Raman	Strength	Comments
V1	stretching sym.	$SiS_2$	$\Sigma+$	no	514.0				inactive	active
V3	stretching asym.	$SiS_2$	$\Sigma+$	no	918.0				active	inactive

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$=Si=S$	2