Carbonyl selenide is a chemical compound with the chemical formula O=C=Se. It is a linear molecule that is primarily of interest for research purposes.
Carbonyl selenide is a colorless gas with an unpleasant odor.[1] Although the compound is quite stable, its solutions gradually revert to elemental selenium and carbon monoxide.[2]
Carbonyl selenide can be produced by treating selenium with carbon monoxide in the presence of amines.[3]
It is used in organoselenium chemistry as a means of incorporating selenium into organic compounds, e.g. for the preparation of selenocarbamates (O-selenocarbamates R−O−C(=Se)−NR'R" and Se-selenocarbamates, R−Se−C(=O)−NR'R", where R is organyl and R' and R" are any group, typically H or organyl).[3]
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