A novel 3D metal-organic framework with helical structure: Synthesis and structure of [Ag4(tzdt)4(μ-tzdtH)2]n (tzdtH=1,3-thiazolidine-2-thione)

A novel metal-organic framework (MOF), the first 3D 1,3-thiazolidine-2-thione (tzdtH) coordinated MOF with strong Ag–Ag interaction (2.9001 Å) in tetranuclear silver clusters, was synthesized. The single-crystal X-ray diffraction shows that the versatile ligand tzdtH contributes greatly to the formation of the 3D framework and the helical structure.

Reaction of AgNO3 and 1,3-thiazolidine-2-thione (tzdtH) in chloroform at low temperatures yielded a 3D [Ag4(tzdt)4(μ- tzdtH)2]n network which exhibiting a strong silver-silver interaction(2.9002 Å). In the open framework, two helical chains along two directions is observed.Figure optionsDownload as PowerPoint slide