We study various research themes in synthetic molecular inorganic and organometallic chemistry with elements from across the periodic table, especially with compounds and complexes of main group elements. Many main group elements are highly Earth abundant, cheap, non-toxic and even biocompatible, and thus are ideally suited for sustainable applications. We discover and investigate fundamentally new compound classes including those with elements in rare oxidation states, unusually bonded fragments and reactive metal hydride species. These generally show novel structures, have unseen properties and as a consequence often show a unique reactivity. We employ these compounds in synthesis, catalysis and towards other applications.