Patent ID: 7018840
Filing Date: 2006-03-28
Classification: G01N

Abstract:
1. A ligand for metal ions, comprising the following moiety: wherein: X is N; Q is O, S or Se; K is selected independently and optionally from the group consisting of halogen, azide, alkyl, aralkyl, alkenyl, alkynyl, cycloalkyl, hydroxyl, alkoxyl, amino, nitro, sulfhydryl, imino, amido, phosphonate, phosphinate, carbonyl, carboxyl, silyl, ether, alkylthio, sulfonyl, sulfonamido, ketone, aldehyde, ester, heterocyclyl, aromatic or heteroaromatic moieties, —CF V is independently each a Lewis base capable of forming one or more coordination bonds with a metal ion, and in the case when m is 2, both V do not contain —CO R1 is independently hydrogen, alkyl, cycloalkyl, aryl, aryl, heterocycle or heterocycle; m is 1 or 2, and n is equal to (2−m); Y is O, S, Se, NR1, or C(CH Z is N, HOOCCH