A new ladder-type silver(I) coordination polymer with 4,4′-bipyridine and 4-[(4-carboxybenzyloxy)methyl]benzoate ligands: synthesis, crystal structure, fluorescence properties and Hirshfeld surface analysis

Abstract

A novel ladder-type coordination polymer (CP), poly[(μ-4,4′-bipyridine-κ2 N:N′){μ-4-[(4-carboxybenzyloxy)methyl]benzoato-κO}silver(I)](Ag—Ag), [Ag(C16H13O5)(C10H8N2)] n or [Ag(HL)(4,4′-bpy)] n {H2 L is 4,4′-[oxybis(methylene)]dibenzoic acid and 4,4′-bpy is 4,4′-bipyridine}, was synthesized using hydrothermal methods. The complex was characterized by IR spectroscopy, elemental analysis and single-crystal X-ray diffraction, and is a ladder-type CP which exhibits an obvious Ag—Ag interaction. The legs of the ladder are formed by parallel 4,4′-bipy ligands and silver ions, and the rungs are constructed by Ag—Ag interactions. A Hirshfeld surface analysis was carried out and is discussed in detail. The complex also displays favourable fluorescence properties.

Structure, magnetic properties and spin density of two alternative Mn(ii) coordination polymers based on 1,4-bis(2′-carboxyphenoxy)benzene

“…3) of the carboxylate groups in complex 1, respectively. 39,40 The characteristic strong absorption peaks at 1614 cm −1 and 1600 cm −1 are assigned to the vibrations of the two coordination modes (mode III and IV in Fig. 3) of the carboxylate groups in complex 2, respectively.…”