Two-dimensional metal–organic framework (MOF) sheets were synthesized by incorporation of the molecular
metal dithiolene–diamine (MS
2N
2, M=Co and Ni),
metal bis(dithiolene) (MS
4), and
metal bis(diamine) (MN
4)
complexes. 2D MOFs were applied as model carbon-rich electrocatalysts for the hydrogen evolution reaction in water, and these studies provided an in-depth understanding of the catalytic active sites, thus paving the way for the future development of
metal complexes in carbon-rich electrode materials for energy generation. More information can be found in the Communication by G. Seifert and X. Feng et al. on
page 2255 ff.