The effects of counterion of silver complexes with a tri-hexacyanoethyl functionalized macrocyclic ligand on the structures, photoluminescence, thermal analysis and biological activity

Abstract The reactions between a tri-cyanoethyl functionalized 17-membered macrocyclic compound (L) with five Ag(I) salts (hexafluoroantimonate, trifluoromethanesulfonate, 4-toluenesulfonate, heptafluorobutyrate and nitrate) led to the formation of [AgL](SbF 6 ) ( 1 ), [AgL](SO 3 CF 3 ) ( 2 ), [AgL](O 2 C 4 F 7 ) ( 3 ), [AgL](SO 3 PhCH 3 ) ( 4 ), and [AgL](NO 3 ) ( 5 ), respectively. Complexes 1 – 5 were characterized by elemental analysis, 1 H NMR, TG-DTA, TG-DTG and IR spectroscopies, moreover, by single crystal X-ray diffraction. In 1 – 5 , the structures show three kinds of coordination environments of silver ions: three-coordinated in 1 – 3 , four-coordinated in 4 and five-coordinated in 5 . The photoluminescent properties, thermal analysis and biological activity of these silver complexes were also studied.