Another N2 activation/splitting paper. There are several examples of similar complexes (you can find them in the first ~15 refs in this paper). Nevertheless, it is a nice paper with good synthetic work. They were able to isolate a N2-bridged complex similar to Cummins' molybdenum dimer. Then the protonation of the complex yields molybdenum nitride (3-X) which was also independently synthesized. So it means no you can't make ammonia with this complex, but still a lot to learn.