Anastasia Gayatri Marwan, Putri Dwi Lestari, M. Robitul Choir, Sutandyo Dwija Laksmana, Adilah Aliyatulmuna, I. Wayan Dasna
A new quinoline(μ1,μ3)-thiocyanatesilver(I) complex, [Ag(Q)(SCN)]n, (Q = quinoline, C9H7N) has been successfully synthesized through a direct reaction at room temperature between silver(I) nitrate, quinoline ligand, and potassium thiocyanate in a 1:1:1 molar ratio. Colorless crystals were obtained after nine days of evaporation. FT-IR analysis confirmed the presence of characteristic functional groups from both quinoline and SCN- ligands. Refinement results from SC-XRD indicated that the silver(I) complex crystallizes in a pseudo-tetrahedral structure with an orthorhombic crystal system and space group P 212121(a = 4.0877(2) Ã, b = 13.4948(8) Ã, c = 18.0710(11) Ã; α = β = γ = 90). The R-factor value of 6.78% demonstrates that the refined structure is in close agreement with the actual molecular arrangement. Hirshfeld surface analysis further revealed intermolecular interactions with distances shorter than 8 Ã, in which the dominant contact is H···H, contributing 29.2% of the total interactions. Antibacterial testing against Staphylococcus aureus and Escherichia coli revealed moderate activity, higher than the free ligands but lower than AgNO3 and chloramphenicol, indicating that Ag(I) coordination enhances antibacterial performance. © 2026 The Authors, published by EDP Sciences.
Departemen Kimia, FMIPA, Universitas Negeri Malang, Jalan Semarang 5, Malang, 65145, Indonesia
