carbonyloxygen

Carbonyloxygen is not a widely established term in mainstream chemistry. When encountered, it is typically not defined as a specific, standalone chemical species in standard references. Instead, it may be used informally or as a mistaken contraction of other related concepts, such as carbonyl-containing groups or carbonyl oxide species.

The closest well-characterized concept related to this idea is carbonyl oxide. Carbonyl oxides are highly reactive intermediates with the general structure R2C=OO, also known as Criegee intermediates. They are formed in reactions such as the ozonolysis of alkenes and are of interest in atmospheric chemistry due to their reactivity with water, SO2, and organic compounds. Carbonyl oxides are typically short-lived and are studied through indirect detection methods and computational chemistry rather than isolation.

In other contexts, phrases resembling carbonyloxy may appear in discussions of acyl-oxy or carbonate-like functionalities, such as alkyl carbonyloxy or carbonate esters. In these cases, standard nomenclature describes the specific functional groups (for example, O-CO-R for acyloxy linkages, or the carbonate framework O-CO-O) rather than using a separate term such as carbonyloxygen.

Overall, carbonyloxygen does not constitute a defined chemical entity in current mainstream usage. For discussions involving carbonyl chemistry and oxygen-containing intermediates, more precise terms such as carbonyl oxide or the specific functional group descriptors should be used. See also carbonyl oxide and carbonate/acyloxy terminology for related concepts.