New tris(phosphonoaryl)-phosphine oxide compounds useful for complexing heavy metals and alkaline earth metals

摘要

Tris(phosphonoaryl)-phosphine oxide compounds of formula (I), and salts and complexes of (I) are new. Tris(phosphonoaryl)-phosphine oxide compounds of formula (I), and salts and complexes of (I) are new: each Q = a group of formula (i): each R1 = H, 1-6C alkyl, halo, NH2, NHR or N(R)2; R = aryl or 1-6C alkyl