TRISPHAT
TRISPHAT (full name tris(tetrachlorocatecholato)phosphate(1−)) is an inorganic anion with the formula P(O2C6Cl4)−3 often prepared as the tributylammonium ((C4H9)3NH+) or tetrabutylammonium ((C4H9)4N+ salt. The anion features phosphorus(V) bonded to three tetrachlorocatecholate (C6Cl4O2−2) ligands.