The first pentavalent praseodymium nitride–oxide that features a rare Pr≡N triple bond is the second ever lanthanide(V) complex to be made.
Lanthanide 新利手机客户端chemistry is dominated by the +3 oxidation state.There are some common +4 lanthanide complexes such as cerium oxide (CeO2),but +5 compounds have proven elusive.Praseodymium has long been considered as the most promising route to lanthanide(V) 新利手机客户端chemistry as it has five valence electrons,but the first pentavalent praseodymium complex,the oxide PrO2+,was only synthesised last year.
Read thefull storyby Aurora Walshe on新利手机客户端Chemistry World.