Organophosphate
Organophosphates (also known as phosphate esters) are a class of organophosphorus compounds with the general structure O=P(OR). They can be considered as esters of phosphoric acid. Like most functional groups organophosphates occur in a diverse range of forms, with important examples including key biomolecules such as DNA, RNA and ATP, as well as many insecticides, herbicides, and nerve agents.
Aminophosphine
In organophosphorus chemistry, an aminophosphine is a compound with the formula RP(NR)n where R = H or an organic substituent, and n = 0, 1, 2. At one extreme, the parent HPNH is lightly studied and fragile, but at the other extreme tris(dimethylamino)phosphine (P(NMe)) is commonly available. Intermediate members are known, such as PhPN(H)Ph. These compounds are typically colorless and reactive toward oxygen. They have pyramidal geometry at phosphorus.