Thiacalix[4]-bis-crown (L1) and its basket-type derivative (L2) were employed and their silver(I) complexes with different topologies are reported. Reaction of L1 (~10 mM) with three equivalents of AgClO4 in a mixture of chloroform-methanol afforded an exo-coordinated one dimensional coordination polymer [Ag2(L1)(ClO4)2]n (1). When the above synthetic procedure was repeated in a lower concentration of L1 (~1 mM), a discrete endocyclic disilver(I) complex [Ag2(L1)](ClO4)2 (2) was isolated. On the other hand, tetra-toylated thiacalix[4]arene was found to undergo unprecedented intramolecular cyclization to yield the basket-type derivative L2. The mechanism of the basket compound L2 via the two stage detosyl and interconversion of the aromatic units is proposed. Using L2, two silver(I) complexes with different anions (3: ClO4- and 4: PF6-) have been isolated. The ClO4- complex 3, {[Ag2(L2)(CH3OH)(ClO4)2].4CHCl3}n, shows an exo-coordination based 2D infinite structure, in which the anion acts as a linker. The corresponding PF6- complex 4, {[Ag(L2)(CH3OH)](PF6)}n, exhibits a multichannel type 3D framework, in which the single channels are further linked by exocyclic silver(I) ions. |