1,4-Bis(trimethylsilyl)-1,4-diaza-2,5-cyclohexadiene is an effective silyl transfer reagent towards the oxygen of nitrate coordinated to Cr(iii) in a pincer complex. Two nitrate oxygens are removed to give the 17 valence electron octahedral complex (H2L)Cr(NO3)2(NO). This is shown by a variety of spectroscopic methods, together with DFT, to be a Cr(i) complex with a linear CrNO unit. This work also identifies future applications of this reductive silylation process.
CITATION STYLE
Seo, J., Cabelof, A. C., Chen, C. H., & Caulton, K. G. (2019). Selective deoxygenation of nitrate to nitrosyl using trivalent chromium and the Mashima reagent: Reductive silylation. Chemical Science, 10(2), 475–479. https://doi.org/10.1039/c8sc02979b
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