New silver BioMOFs driven by 1,3,5-triaza-7-phosphaadamantane-7-sulfide (PTAS): synthesis, topological analysis and antimicrobial activity

Abstract

Two new bioactive silver–organic frameworks [Ag(μ₃-PTAS)]_n(NO₃)_n·nH₂O (1) and [Ag₄(μ₄-PTAS)(μ₅-PTAS)(μ₂-SO₄)₂(H₂O)₂]_n·2nH₂O (2) were easily assembled, thus opening up the application of PTAS as a versatile N,S-building block in the crystal engineering of MOFs. The obtained products reveal infinite 3D networks driven by multiply bridging PTAS spacers that adopt unprecedented N₂S-coordination modes. The topological analysis of 1 discloses an uninodal 3-connected net with the srs (SrSi₂) topology, whereas 2 features a pentanodal 3,4,5-connected net with a hitherto undocumented topology. Apart from representing the first MOFs derived from PTAS, the compounds 1 and 2 display notable antibacterial and antifungal activities.