Three new Ag(I) coordination architectures based on mixed ligands: Syntheses, structures and photoluminescent properties

Three new silver (I) coordination complexes, [Ag2(1,2-bdc)(phdat)]n (1), [Ag2(NO2-bdc)(phdat)]n (2), [Ag4(nta)3(phdat)NO3]n (3) (1,2-bdc=phthalic acid dianion, NO2-bdc=5-nitro-1,3-benzenedicarboxylic acid dianion, nta=nicotinic acid anion, phdat=2,4-diamine-6-phenyl-1,3,5-triazine) have been hydrothermally synthesized by the reactions of silver nitrate and phdat with the homologous ligands 1,2-H2bdc, NO2-H2bdc, and Hnta, respectively, and characterized by single-crystal X-ray diffractions, IR spectra, elemental analyses thermogravimetric analyses (TGA). The compound 1 exhibits a chiral 3D network with cbs/CrB self-dual topological net, which contains two kinds of single helical chains. For compound 2, the 3D network is comprised of two kinds of similar 2D sheets with the topological symbol of sql-type packed in AABBAA mode by Ag–N/O weakly contacts. And compound 3 has 2D double layer architecture, consisting of the 2D plane with hcb-type topological symbol connected by Ag–O weakly coordinations. The photoluminescent properties associated with the crystal structures of three compounds have also been measured.

Three new silver(I) coordination complexes 1–3 have been synthesized and characterized by single-crystal X-ray diffractions, IR spectra, elemental analyses, thermogravimetric analyses (TGA) and photoluminescent spectra.Figure optionsDownload as PowerPoint slideHighlights
► The compound 1 exhibits a novel chiral 3D network with two kinds of single helical chains.
► 3D or 2D new Ag coordination complexes.
► The photoluminescent properties have been measured.