Nopemmin

Nopemmin is a fictional chemical compound used in speculative chemistry and science fiction literature to illustrate concepts in coordination chemistry and catalysis. It has no verified existence in the natural world or in laboratory records, and there is no peer‑reviewed synthesis available.

In the fictional accounts, nopemmin is described as a stable solid that forms defined coordination around a central metal atom. It is attributed with unusual redox flexibility and a high level of thermal stability, enabling hypothetical catalytic cycles under mild conditions. The imagined compound is often employed to discuss how ligand design influences reactivity and selectivity, and to explore themes such as resource limitations and ethical considerations in material science.

Origin and usage: The term nopemmin appears in a limited body of speculative writings and online reference compendia as an example of a hypothetical material. While it is sometimes used in teaching to demonstrate critical reading and source evaluation, it is not recognized as a real chemical species by the broader scientific community. Readers encountering mentions of nopemmin are advised to treat it as fictional unless accompanied by verifiable experimental data or primary literature.