DOI: 10.1039/d6sc03528k ISSN: 2041-6520
K 5 Ir: reduced iridium stabilized at high pressure
Douglas H. Fabini, Romana-Iryna Martyniak, Angelika D. Rosa, Stella Chariton, Eric A. Riesel, Emin Mijit, Vitali B. Prakapenka, Danna E. FreedmanPushing electrons uphill: Potassium and iridium react at high pressure to form K 5 Ir. Iridium in this phase extends the series of reduced 5d transition metals beyond the auride (Au – ) and platinide (Pt 2– ) anions in semiconducting CsAu and Cs 2 Pt.