Carmen Lequerica، نويسنده , , Marيa del and Baena، نويسنده , , Marيa Jesْs and Espinet، نويسنده , , Pablo، نويسنده ,
Complexes [Ag(NH2R)2]X, (X = NO3, R = –C6H4–CnH2n+1-p, –C6H4–O–CnH2n+1-p, –CH2–C6H4–O–CnH2n+1-p, n = 6, 8, 10, 12, 14; X = BF4, R = –CH2–C6H4–O–CnH2n+1-p, n = 6, 8, 10, 12, 14; X = OAc, R = –CH2-C6H4–O–C10H21-p; X = CF3SO3, R = –CH2–C6H4–O–C10H21-p) have been prepared. They all show SA mesophases corresponding to two kinds of structures, already present in the solid state. The alkylaniline and alkoxyaniline derivatives adopt a bilayered structure where the cation has an extended centrosymmetric conformation. The benzylamine derivatives contain U-shaped cations giving rise to a bilayered structure which allows microsegregation of the organic part of the molecule from the inorganic Ag⋯(anion) part. Some degree of interdigitation of the terminal chains is observed for all the complexes with aryl containing ligands.
Liquid crystals , Bilayered mesophases , Silver complexes , amine complexes , Metallomesogens