Hexasulfur is an
inorganic
In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemist ...
chemical
A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., w ...
with the chemical formula .
Nomenclature
The name hexasulfur is the most commonly used and
preferred IUPAC name
In chemical nomenclature, a preferred IUPAC name (PIN) is a unique name, assigned to a chemical substance and preferred among the possible names generated by IUPAC nomenclature. The "preferred IUPAC nomenclature" provides a set of rules for cho ...
and is constructed according to the compositional nomenclature, and cyclohexasulfane. It is also the final member of the
thiane
Thiane is a heterocyclic compound and an organosulfur compound
Organosulfur compounds are organic compounds that contain sulfur. They are often associated with foul odors, but many of the sweetest compounds known are organosulfur derivatives, ...
heterocyclic series, where every carbon atom is substituted with a sulfur atom, thus the systematic name hexathiane, a valid
IUPAC
The International Union of Pure and Applied Chemistry (IUPAC ) is an international federation of National Adhering Organizations working for the advancement of the chemical sciences, especially by developing nomenclature and terminology. It is ...
name, is constructed according to the substitutive nomenclature. Another valid IUPAC systematic name ''cyclo''-hexasulfur is constructed according to the additive nomenclature.
Structure
This chemical consists of rings of 6
sulfur atoms. It is thus a simple cyclosulfane and an
allotrope of sulfur
The element sulfur exists as many allotropes. In number of allotropes, sulfur is second only to carbon. Greenwood, 652 In addition to the allotropes, each allotrope often exists in polymorphs (different crystal structures of the same covalently ...
. Hexasulfur adopts a
chair configuration
In organic chemistry, cyclohexane conformations are any of several three-dimensional shapes adopted by molecules of cyclohexane. Because many compounds feature structurally similar six-membered rings, the structure and dynamics of cyclohexane a ...
similar to that of
cyclohexane, with bond angles of 102.2°. The sulfur atoms are equivalent.
References
{{Reflist
Six-membered rings
Allotropes of sulfur