acetylide
Sign in to saveIn chemistry, an acetylide is a compound that can be viewed as the result of replacing one or both hydrogen atoms of acetylene (ethyne) by metallic or other cations. Calcium carbide is an important industrial compound, which has long been used to produce acetylene for welding and illumination. It is also a major precursor to vinyl chloride. Other acetylides are reagents in organic synthesis.
Article
11 sectionsContents
- Nomenclature
- Alkali and alkaline earth acetylides
- Transition metal acetylides
- Preparation
- Of the type {{chem2|MC\tCR}}
- Of the type {{chem2|MC\tCM}} and {{chem2|CaC2}}
- Reactions
- Coupling reactions
- Hazards
- See also
- References
In chemistry, an acetylide is a compound that can be viewed as the result of replacing one or both hydrogen atoms of acetylene (ethyne) by metallic or other cations. Calcium carbide is an important industrial compound, which has long been used to produce acetylene for welding and illumination. It is also a major precursor to vinyl chloride. Other acetylides are reagents in organic synthesis.
==Nomenclature== The term acetylide is used loosely. It applies to an acetylene , where R = H or a side chain that is usually organic. The nomenclature can be ambiguous with regards to the distinction between compounds of the types and . When both hydrogens of acetylene are replaced by metals, the compound can also be called carbide, e.g., calcium carbide , which is calcium acetylide. When only one hydrogen atom is replaced, the anion may be called hydrogen acetylide or the prefix mono- may be attached to the metal, as in monosodium acetylide or sodium hydrogen acetylide, . Metal acetylide may be described as salts, but that description rarely comports with crystallographic analysis.