Substituent

Substituent

Substituent (pronunciation: /səbˈstɪtʃuənt/) is a term used in organic chemistry to describe an atom or group of atoms which replace hydrogen atoms on a parent hydrocarbon molecule.

Etymology

The term 'Substituent' is derived from the Latin word 'substituens', which means 'to put in place of'.

Related Terms

• Functional group: A specific group of atoms within a molecule that is responsible for the characteristic chemical reactions of that molecule.
• Radical: An atom, molecule, or ion that has unpaired valence electrons.
• Moiety: A part of a molecule which can be divided into two or more functional groups.
• Isomer: Molecules with the same molecular formula but different structural formulas.

See Also

• Chemical nomenclature
• IUPAC nomenclature of organic chemistry
• Structural formula

References

External links

• Medical encyclopedia article on Substituent
• Wikipedia's article - Substituent

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