Synthesis of Nitride Zeolites in a Hot Isostatic Press

The recently introduced nitridophosphate synthesis in a hot isostatic press (HIP) enabled simple access to large‐scale product quantities starting from exclusively commercially available starting materials. Herein, we show that this method is suitable for the synthesis of highly condensed functional nitridophosphates, as well. Hence, the syntheses of the nitridophosphate zeolites Ba(3)P(5)N(10) X (X=Cl, Br) are presented as proof of concept for this innovative access. Furthermore, samples of unprecedented Sr(3)P(5)N(10) X (X=Cl, Br) were prepared and characterized to demonstrate the advantages of this synthetic approach over commonly used methods. Luminescence investigations on Eu(2+)‐doped samples of AE (3)P(5)N(10) X (AE=Sr, Ba; X=Cl, Br) were carried out and characteristics of observed emission bands are discussed.