First +5 praseodymium compound with PrN triple bond made
The second ever praseodymium compound with a +5 oxidation state paves the way for pentavalent lanthanide chemistry
The first pentavalent praseodymium nitride–oxide that features a rare Pr≡N triple bond is the second ever lanthanide(V) complex to be made. The compound’s unusual bonding orbitals show that higher oxidation state lanthanide chemistry could be richer than previously believed.