ionssuch

Ionsuch is a neologism that appears in speculative chemistry and some educational simulations to describe a hypothetical class of ion species in which the net charge is delocalized over a molecular framework rather than localized on a single atom. In real-world chemistry, the charge of an ion is localized to atoms, though resonance and delocalization can distribute electron density across several atoms in polyatomic ions.

Definition and scope: In ionsuch models, an ion would carry a single overall charge that spreads across multiple centers or ligands, giving rise to properties that mimic both cations and anions in different regions of the framework. This could influence solvation, transport, and redox behavior, potentially enabling unusual ionic mobility or stability in certain solvents or solid electrolytes. It functions primarily as a theoretical construct or teaching tool rather than an empirically confirmed class.

Study and detection: Ionsuch would be explored using quantum chemistry calculations and molecular dynamics, with indicators such as partial charge analyses showing fractional charges and unusual vibrational or IR spectra. Experimental validation would rely on indirect measurements of diffusion, conductivity, and spectroscopic signatures that depart from expectations for conventional ions.

Origins and usage: The term is not standard in peer-reviewed chemistry and is more common in thought experiments or speculative discussions. It helps illustrate concepts of charge distribution, delocalization, and the limits of simple ionic models.

See also: ion, polyatomic ion, charge delocalization, ionic liquid, solid electrolyte.