Molecular recognition for anion detection: Progress and environmental significance

Supramolecular chemistry is the name given to the subfields of chemistry that deal with complex frameworks made up of a certain number of molecules. The host and visitor or guest involved in molecular recognition demonstrate molecular complementarity. Significant attention has been generated in the new year for the precise identification and detection of anion species using artificial sensors. Due to the fact that anion play a significant role in the climate or environment. Consideration of the type of non-covalent interaction used to complex the anion guest has allowed for the helpful classification of anion receptors. Calculation and simplicity are necessary for the plane of certain hosts for anion. Anion is important to the environment. Different detecting techniques have been discussed. It also, review the effect of phosphate, nitrate anions on ecosystem. Phosphates are important components of medications and fertilizers. Phosphate and nitrogen are the essential supplements that in extreme amounts contaminate lakes, streams and waterway. Anion is important to the environment. Anions in water, air, and other environmental resources have been documented to be contaminated for many years. Eutrophication can occur due to excessive use of phosphate and nitrate anions. Overuse of fertilizers damages ecosystems and contributes to pollution of the air, water, and land. Therefore, it is important to highlight the finding of anion waste in the ecosystem. The phosphate and nitrate ions are two of the main polluting anions that will be used in the current paper to show the effects of fertilizers on the environment.