A molybdenum complex bearing PNP-type pincer ligands leads to the catalytic reduction of dinitrogen into ammonia
A molybdenum complex bearing PNP-type pincer ligands leads to the catalytic reduction of dinitrogen into ammonia
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DOI：
10.1038/nchem.906
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发表时间：
2011-02-01
期刊：
影响因子：
21.8
通讯作者：
Nishibayashi, Yoshiaki
中科院分区：
文献类型：
--
作者：
Arashiba, Kazuya;Miyake, Yoshihiro;Nishibayashi, Yoshiaki
过渡金属-二氮络合物的合成以及它们的配位二氮到氨和肼的化学计量转化一直是大量研究的主题，以期在环境条件下实现固氮。自2003年的一个例子以来，没有报道过在环境条件下将二氮催化转化为氨的例子。发现带有PNP钳形配体的二氘-二氮络合物作为由二氮形成氨的有效催化剂工作，具有23当量。的用催化剂生产的氨（12当量）。基于催化剂的钼原子产生氨）。这是在环境反应条件下将二氮催化和直接转化为氨的另一个成功实例。我们认为，本文所述的结果提供了有价值的信息，开发一个更有效的固氮系统在温和的反应条件下。
The synthesis of transition metal-dinitrogen complexes and the stoichiometric transformation of their coordinated dinitrogen into ammonia and hydrazine have been the subject of considerable research, with a view to achieving nitrogen fixation under ambient conditions. Since a single example in 2003, no examples have been reported of the catalytic conversion of dinitrogen into ammonia under ambient conditions. The dimolybdenum-dinitrogen complex bearing PNP pincer ligands was found to work as an effective catalyst for the formation of ammonia from dinitrogen, with 23 equiv. of ammonia being produced with the catalyst (12 equiv. of ammonia are produced based on the molybdenum atom of the catalyst). This is another successful example of the catalytic and direct conversion of dinitrogen into ammonia under ambient reaction conditions. We believe that the results described in this Article provide valuable information with which to develop a more effective nitrogen-fixation system under mild reaction conditions.