Two square-pyramidal chromium(V)-nitride complexes: bis­(2-methyl­quinolin-8-olato)nitridochromium(V) and nitridobis(2-sulfidopyridine N-oxide)chromium(V)

Two new chromium(V)–nitride complexes with a coordination sphere completed by bidentate ligands have been synthesized and structurally characterized. Bis(2‐methyl­quinolin‐8‐olato)nitridochromium(V), [Cr(C10H8NO)2(N)], has the coordination sphere completed by an equatorial N2O2 set of ligators. The compound crystallizes with the five‐coordinate complexes at sites with twofold rotational symmetry and all Cr—N bond directions aligned with the crystallographic b axis. Nitridobis(2‐sulfidopyridine N‐oxide)chromium(V), [Cr(C5H4NOS)2(N)], crystallizes with the mol­ecules on general positions and has an equatorial S2O2 coordination environment, which is unprecedented among nitride complexes of the first‐row transition metals. In both systems, Cr[triple‐bond]N bonds are short at ca 1.56 Å.