Reaction of compounds [(NO)2Fe(TMEDA)] and [BH4]− affords the first hydride-containing dinitrosyl iron complex (DNIC) [(NO)2Fe(η2-BH4)]− (2). Hydride-insertion reactivity of DNIC 2 promotes the reductive transformation of CS2 into DNIC [(NO)2Fe(η3-HCS2)]−, the first DNIC featuring both linear/bent NO ligands and Fe 3dz2-to-HCS2 π* backbonding interaction.
![Graphical abstract: Transformation of the hydride-containing dinitrosyl iron complex [(NO)2Fe(η2-BH4)]− into [(NO)2Fe(η3-HCS2)]−via reaction with CS2](http://hg.y866.cn/compound/lib/scimg/usr/1/C8DT04714F.jpg)
