In the Schrock catalyst, molybdenum is in a trigonal bipyramidal configuration. However, the other examples also display molybdenums ability to exist in stand alone or bridged octahedral configurations, which is a key aspect when designing new molybdenum based catalyst candidates. By understanding the mechanisms and efficiency of these complexes, one can obtain ideas and frameworks for future work on designing such catalysts. There have been many computational studies on the Schrock catalyst that provide crucial insights into the requirements of catalyzing the formation of NH 3 and these provide the foundation for further catalyst discovery studies.