Synthesis and molecular structure of the first organometallic nitride cubane: [{Ti(η 5 -C 5 Me 5 )} 4 (µ 3 -N) 4 ]

The ammonolysis of [Ti(η5-C5Me5)(NMe2)3] at 90 °C affords the nitride complex [{Ti(η5-C5Me5)}4(µ3-N)4]; the X-ray crystal structure analysis shows a Ti4N4 core clearly similar to the structural motif of cubic titanium nitride.