Construction of Pyridinethiolate-Bridged 2D and 3D Coordination Networks of d10 Metal Halides via Solvothermal in Situ Disulfide Cleavage Reactions

Abstract

Five new pyridinethiolate-bridged 2D and 3D coordination networks of d10 metal halides formulated with [Cu2(SCN)(4-pyt)] (1), [Ag2Cl2(4-pytH)] (2), [Cu5(SCN)3(2-pyt)2] (3), [Cu4I4(2-pytH)] (4), and [Ag3Cl3(2-pytH)2] (5) (4-pyt = 4-pyridinethiolate, 2-pyt = 2-pyridinethiolate) have been solvothermally synthesized, in which the pyt or pytH ligands were generated via in situ cleavage of S–S bonds of 4,4′-dithiodipyridine (4-dtdp) or 2,2′-dithiodipyridine (2-dtdp) in the presence of Cu(I) or Ag(I) ions. Complexes 1 and 3 are a 3D coordination network, constructed with the interesting inorganic Cu–S coordination layers in a (6,3) topology net bridged by the 4-pyt and SCN ligands for 1 and constructed with the (CuSCN)n layers linked by the 2-pyt-supported (Cu6S6) units for 3. Complexes 2, 4, and 5 are 2D coordination layer structures, which are constructed with 1D (AgCl)n ladder chains linked by [Ag2(4-pytH)2] bridges for 2, with double step-ladder and zigzag (CuI)n chains linked by μ3-2-pytH bridges for 4, and...