Editing Stereocenter (section)

==Chirality centers==
A [[Chirality (chemistry)|chirality center]] (chiral center) is a type of stereocenter. A chirality center is defined as an atom holding a set of four different [[ligand|ligands]] (atoms or groups of atoms) in a spatial arrangement which is non-superposable on its mirror image. Chirality centers must be sp<sup>3</sup> hybridized, meaning that a chirality center can only have [[Sigma bond|single bonds]].<ref name=":2">{{Cite web |date=2021-12-15 |title=5.3: Chirality and R/S Naming System |url=https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_I_(Liu)/05%3A_Stereochemistry/5.03%3A_Chirality_and_R_S_Naming_System |access-date=2022-11-12 |website=Chemistry LibreTexts |language=en}}</ref> In [[organic chemistry]], a chirality center usually refers to a [[carbon]], [[phosphorus]], or [[sulfur]] atom, though it is also possible for other atoms to be chirality centers, especially in areas of [[organometallic]] and [[inorganic chemistry]].

The concept of a chirality center generalizes the concept of an [[asymmetric carbon|asymmetric carbon atom]] (a carbon atom bonded to four different entities) to a broader definition of any atom with four different attachment groups in which an interchanging of any two attachment groups gives rise to an [[enantiomer]].<ref>{{Cite journal |title=chiral (chirality) center |url=http://goldbook.iupac.org/C01060.html |website=[[IUPAC]].org|doi=10.1351/goldbook.C01060 |doi-access=free }}</ref>