Bromidiioni

Bromidiioni is a chemical compound with the formula BrO2-. It is an anion consisting of bromine in the +5 oxidation state, bonded to two oxygen atoms. Bromidiioni is a strong oxidizing agent and is often used in various chemical reactions and industrial processes. It is typically prepared by the oxidation of bromides using strong oxidizing agents such as potassium permanganate or potassium dichromate. Bromidiioni can also be generated in situ during certain reactions, where it acts as an intermediate species.

The bromidiioni anion is isoelectronic with the chlorate ion (ClO3-) and the iodate ion (IO3-), all of which have a similar trigonal pyramidal molecular geometry. The Br-O bond lengths in bromidiioni are approximately 1.65 Å, and the O-Br-O bond angle is around 110 degrees. The anion exhibits a strong tendency to accept electrons, making it a powerful oxidizing agent.

Bromidiioni is used in various applications, including organic synthesis, where it can be employed as an oxidizing agent to convert alcohols to aldehydes or ketones. It is also used in the production of certain brominated compounds and as a reagent in analytical chemistry. However, due to its strong oxidizing properties, bromidiioni must be handled with care to prevent hazardous reactions.