Identification of an iridium-containing compound with a formal oxidation state of IX : Nature : Nature Publishing Group

March 7, 2015

Is this tetrahedral?

Ir-containing compound w/ a formal #oxidation state of IX http://www.nature.com/nature/journal/v514/n7523/full/nature13795.html
Surpassing OsO4, removing d electron gives [IrO4]+ cation

"Removal of the remaining d electron from IrO4 would lead to the iridium tetroxide cation ([IrO4]+)"