Selectivity of tungsten mediated dinitrogen splitting vs. proton reduction.

ABSTRACT: Mo complexes are currently the most active catalysts for nitrogen fixation under ambient conditions. In comparison, tungsten platforms are scarcely examined. For active catalysts, the control of N₂ vs. proton reduction selectivities remains a difficult task. We here present N₂ splitting using a tungsten pincer platform, which has been proposed as the key reaction for catalytic nitrogen fixation. Starting from [WCl₃(PNP)] (PNP = N(CH₂CH₂PtBu₂)₂), the activation of N₂ enabled the isolation of the dinitrogen bridged redox series [(N₂){WCl(PNP)}₂]^0/+/2+. Protonation of the neutral complex results either in the formation of a nitride [W(N)Cl(HPNP)]^+<

SUBMITTER: Schluschaß B 

PROVIDER: S-EPMC6984443 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature