Atriumide

Atriumide refers to a family of chemical compounds that were once believed to exist and play a role in biological processes. The term was largely coined by Linus Pauling in the 1930s and 1940s. Pauling proposed that atriumides were molecules composed of a central iron atom bonded to a nitrogen atom, which in turn was bonded to hydrogen atoms. He speculated that these structures might be involved in the transport of oxygen in the blood, similar to hemoglobin.

However, subsequent research and advances in analytical chemistry have failed to find any evidence supporting the existence of atriumides. Modern understanding of iron-nitrogen bonding in biological systems, such as in porphyrin rings of heme, does not align with Pauling's proposed atriumide structure. The concept of atriumides is now considered a historical hypothesis in biochemistry that has been disproven by empirical evidence. While Pauling was a highly influential scientist, this particular hypothesis did not stand the test of further scientific investigation.