HSO4ionin

HSO4ionin is a hypothetical chemical species discussed in theoretical inorganic chemistry and speculative discussions of sulfur–oxygen–hydrogen chemistry. The name blends the bisulfate-related fragment HSO4 with an informal suffix used in some imagined ion systems. There is no peer‑reviewed experimental evidence for its existence, and it is not part of standard chemical databases or textbooks.

Proposed structure and bonding for HSO4ionin are largely model‑based and speculative. In common sketches, it is imagined as a sulfur-centered framework with multiple oxygen ligands, potentially featuring one hydroxyl (OH) group attached to an oxygen. Depending on protonation and electron count, the species may be described as a neutral polyatomic molecule or as a highly charged ion. The exact geometry—whether tetrahedral, distorted, or polymeric—varies between theoretical treatments.

Reactivity and properties are likewise uncertain. Predicted characteristics commonly include a high degree of oxidation at sulfur, multiple polar S–O bonds, and significant instability under standard conditions. In most models, HSO4ionin would be transient, readily decomposing to simpler sulfur‑oxygen species, water, or sulfur oxides, with stability strongly influenced by the surrounding medium and energy input.

Synthesis and occurrence have not been demonstrated experimentally. Hypothetical routes mentioned in speculative discussions include high‑energy plasma environments, extreme acidity, or astrochemical settings where sulfur oxides and water are abundant, but no validated synthesis has been reported.

In summary, HSO4ionin remains a theoretical construct with no confirmed real‑world examples. Related topics include bisulfate, sulfuric acid, and oxide sulfur chemistry.