Group 9 Transition Metal–Dinitrogen Complexes

This chapter provides comprehensive coverage of the N2 coordination chemistry of group 9 metal centers. Among the triad, and even among other transition metals, cobalt is emerging as a prominent player in both N2 coordination chemistry and N2 catalysis. The chapter is organized by the metal element (Co, Rh, and Ir) and then by various ligands. The contents span the synthesis, structure, and reactivity of the group 9 N2 complexes. The vast collection of the group 9 N2 compounds allows for interesting comparisons to be drawn and thereby provides critical insights into the underlying basis for the varying extents of N2 activation. In the last section, the group 9 catalysts for N2 functionalization are summarized.