Overview Of Organophosphorus Compounds

Refers to organic compounds containing carbon-phosphorus bonds, and organophosphorus chemistry is a branch of organic chemistry that studies the properties and reactions of organophosphorus compounds. Phosphorus is in the same family as nitrogen and has a similar valence electron layer structure, so the properties of organic phosphorus compounds are somewhat similar to those of organic nitrogen-containing compounds. But in addition to 3s and 3p orbitals, phosphorus can also form bonds with 3d orbitals, so there are also many special high-valent organophosphorus compounds, and none of them have corresponding nitrogen compounds. Phosphorus is also less electronegative than nitrogen and weaker in basicity, so there are many differences in the properties of the formed compounds.

Phosphorus is one of the essential elements of life and is closely related to living organisms. For example, nucleic acids that are ubiquitous in living organisms contain a large number of phosphate groups. Due to the high energy of the phosphorus-oxygen bond, the adenosine triphosphate (ATP) of nucleotides is called an "energy molecule" and is used to store and transfer chemical energy. Phosphate ions are also present in the blood.

Many pesticides and chemical weapons also contain organophosphorus compounds.