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

Two new bioactive silver-organic frameworks [Ag(mu(3)-PTA=S)](n)(NO3)(n)center dot nH(2)O (1) and [Ag-4(mu(4)-PTA=S)(mu(5)-PTA=S)(mu(2)-SO4)(2)(H2O)(2)](n)center dot 2nH(2)O (2) were easily assembled, thus opening up the application of PTA=S as a versatile N,S-building block in the crystal engineering of MOFs. The obtained products reveal infinite 3D networks driven by multiply bridging PTA=S 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 PTA=S, the compounds 1 and 2 display notable antibacterial and antifungal activities.