The interaction of a metal ion with a ligand where waters of hydration are retained. There is at least one H
O molecule ‘between” the ions interacting.
The term "ion-pair" was found in the following pages:
Arsenic species in the Most Consumed Seafoods in the USA | EVISA's News
Trimethylselenonium is not the major metabolite for human cancer patients excreting high doses of selenium | EVISA's News
LC-ICP-MS: The most often used hyphenated system for speciation analysis | EVISA's News