Dinuclear and polynuclear silver(I) saccharinate complexes with 1,3-diaminopropane and N-METHYLETHYLENEDIAMINE (cas 109-81-9) constructed from Ag⋯C interactions
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Add time:08/21/2019 Source:sciencedirect.com
New dinuclear and polynuclear Ag(I) complexes with the formula of [Ag2(sac)2(pen)2] (1) and [Ag2(sac)2(nmen)]n (2), (sac = saccharinate, pen = 1,3-diaminopropane, nmen = N-METHYLETHYLENEDIAMINE (cas 109-81-9)) have been synthesized and characterized by IR spectroscopy and thermal (TG/DTG, DTA) analysis. In addition, their structures were determined by single crystal X-ray diffraction technique. In 1, Ag(I) ions are doubly bridged by two pen ligands, besides pen ligands exhibit an interesting coordination mode by binding bridging ligand. Sac ligands connect to silver atom through its imino N atom. Furthermore, each Ag(I) ion exhibits a T-shaped coordination geometry. In 2, Ag(I) coordination environment is again T-shaped, including weak Ag–Ag bonds. The sac exhibits bidentate bringing mode, involving its imino nitrogen and carbonyl oxygen atoms, besides, bridging of Ag(I) centres by sac ligands results in argentophilic contacts. The polymeric units are assembled into two-dimensional networks by hydrogen bonds, C–H⋯π stacking interactions, weak Ag⋯Csac (η2) and Ag⋯O interactions.
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