Light-stable and antimicrobial active silver(I) complexes composed of triphenylphosphine and amino acid ligands: Synthesis, crystal structure, and antimicrobial activity of silver(I) complexes constructed with hard and soft donor atoms (n∞{[Ag(L)(PPh3)]

Stoichiometric reactions of amino acid-silver(I) complexes with PPh3 in a 1:1 molar ratio afforded three novel silver(I) complexes consisting of both hard Lewis bases (O and N atoms) and a soft base (P atom), ∞{[Ag(dl-α-ala)(PPh3)]2 · 2H2O}, 2∞{[Ag(dl-asn)(PPh3)]2 · 2H2O · 2EtOH}, and 2∞{[Ag(l-asn)(PPh3)]2 · 2H2O · 2EtOH}. These silver(I) complexes showed moderate to modest antimicrobial activities against selected bacteria and yeasts.