Molybdenum nitride (Mo₂N) is one of the most promising alternative catalysts for a wide range of Pt‐catalyzed catalytic applications but is seldom investigated in oxidative coupling of amines to imines. A Mo₂N‐based nanocatalyst is successfully achieved by the hybridization of PMo₁₂O₄₀³⁻ (PMo)‐paired ionic pyridine‐4‐carboxylic acid (PC) and melamine (Mel), followed by calcination in N₂. Melamine acts as an outstanding carburization and nitridation reagent that can convert into carbon nitride, and meanwhile the released N element react with Mo species in PMo to form Mo₂N. The obtained catalyst PC‐PMo‐Mel‐800 exhibits high activity and remarkable stability for the oxidative coupling of amines to imines under solvent‐free and atmospheric conditions. This is the first case of Mo₂N‐catalyzed oxidative coupling reaction catalyst. The strategy reported herein for fabricating Mo₂N may provide a significant and interesting approach to design more transition metal nitrides for wide catalytic applications.

中文翻译：

---

源自三聚氰胺和多金属氧酸盐的杂化物衍生的氮化钼纳米催化剂，用于空气中胺与胺的氧化偶联

氮化钼（Mo ₂ N）是广泛的Pt催化应用中最有希望的替代催化剂之一，但很少在胺与亚胺的氧化偶联中进行研究。通过将PMo ₁₂ O ₄₀ ^3-（PMo）-配对的离子吡啶-4-羧酸（PC）和三聚氰胺（Mel）杂交，然后在N _2中煅烧，可以成功地获得基于Mo ₂ N的纳米催化剂。三聚氰胺是一种出色的渗碳和氮化剂，可以转化为氮化碳，同时释放的N元素与PMo中的Mo物质反应形成Mo ₂N.所得催化剂PC-PMo-Mel-800在无溶剂和大气条件下，胺与亚胺的氧化偶联反应具有很高的活性和出色的稳定性。这是Mo ₂ N催化的氧化偶联反应催化剂的第一种情况。本文报道的用于制造Mo ₂ N的策略可以提供重要且有趣的方法来设计更多的过渡金属氮化物，以用于广泛的催化应用。