Here we present the first study on hydrogen-bonded complexes within the context of the ferroelectric nematic phase. The reported complexes are analogous in structure to RM734, with the terminal 4nitrophenyl unit replaced with a 4-nitropyridyl. We developed a novel computer controlled purification process that greatly simplifies the isolation of both complexes. Compared to the parent covalent materials, the hydrogen-bonded complexes have higher melting points and greatly diminished mesophase onset temperatures. We attribute this to the significantly reduced dipole moment that results from having a nitrogen atom para to the nitro group of the terminal ring. However, the fact that complex 1 forms an NF phase at all is remarkable given that its dipole moment is only around 10% larger than that of 5CB. DFT calculations reveal that both covalent materials (RM734, RM734-3F) and complexes 1 and 2 have alternating regions of positive and negative electrical charge, and we suggest that these have an important role in promoting polar order. Looking forward, hydrogen bonded analogues of other NF materials that lack terminal nitro groups (e.g. DIO) appear particularly attractive as a means to avoid the autoxidation associated with 4-nitropyridine and its derivatives, as do complexes formed by other strong non-covalent interactions (e.g. halogen bonds).