REMARKABLE EFFECT OF AMIDE SUBSTITUENTS ON MOLECULAR-ORGANIZATION OF SILVER SELECTIVE PYRIDINE-DIAMIDE-DIESTER RECEPTORS

The structures of Ag+ selective 1 show that methyl and benzyl substitu ent at amide nitrogen in 1c and 1d induce optimal molecular organisati on and electron rich character in the parent, electron deficient, wate r coordinated macrocycle 1a. Whereas bulky benzyl substituent and long er spacer cause much molecular disorganisation in 1f.