Crystal structure of catena-poly[silver(I)-μ-l-valinato-κ2N: O]

Yoshitaka Takagi; Youhei Okamoto; Chisato Inoue; Noriko Chikaraishi Kasuga; Kenji Nomiya

doi:10.1107/S2056989017001815

Crystal structure of catena-poly[silver(I)-μ-l-valinato-κ²N: O]

Acta Crystallogr E Crystallogr Commun. 2017 Feb 14;73(Pt 3):354-357. doi: 10.1107/S2056989017001815. eCollection 2017 Mar 1.

Authors

Yoshitaka Takagi¹, Youhei Okamoto¹, Chisato Inoue¹, Noriko Chikaraishi Kasuga¹, Kenji Nomiya¹

Affiliation

¹ Department of Chemistry, Faculty of Science, Kanagawa University, Tsuchiya, Hiratsuka, Kanagawa 259-1293, Japan.

Abstract

The reaction of Ag₂O with l-valine (l-Hval, C₅H₁₁NO₂) in a 1:2 molar ratio in water, followed by vapour diffusion, afforded a coordination polymer of the title compound, [Ag(C₅H₁₀NO₂)] _n , with N-Ag-O repeat units, which is classified as a type III silver(I) complex with amino acid ligands. The asymmetric unit consists of two independent units of [Ag(l-val)]. In the crystal, the polymeric chains run along [101], and neighbouring chains are linked via a weak Ag⋯Ag inter-action and N-H⋯O hydrogen bonds. The title complex exhibited anti-microbial activity against selected bacteria (Escherichia coli, Bacillus subtilis, Staphylococcous aureus and Psedomonas aeruginosa).

Keywords: Ag⋯Ag interaction; coordination polymer; crystal structure; hydrogen bonding; silver(I) complex with amino acid.