Syntheses And Properties Of Coordination Polymers And Inorganic-organic Hybrids Based On A Pyridyl Thiocalix[4] Arene Ligand

In order to synthesize thiacalix[4]arene cuprous ion coordination polymers and inorganic-organic hybrids,three new cuprous ion coordination polymers with different structures,[Cu₂?CN??L??OCH₃?]·CH₃OH·3H₂O?1?,[Cu₃?Br?₃?L?]?2?and [Cu?I??L?]·1.5H₂O?3?and two inorganic-organic hybrids with same structures,[Ni₂L₂?H₂O?₂][SiW₁₂O₄₀]·3H₂O?4?and [Co₂L₂?H₂O?₂][CoW₁₂O₄₀]·3H₂O?5?have been solvothermally prepared by a pyridyl-functionalized thiacalix[4]arene ligand L.1 and 2 exhibit layers.3 displays a chain,and a supramolecular layer is constructed by hydrogen-bonds.4 and 5 display 3D frameworks which contain polyoxometalates.2 shows good stability in organic solvents and different pH solutions,3 is unstable in organic solvents and different pH solutions.The performance of 1-3 was examined for azide and alkyne cycloaddition reaction.Most strikingly,1 and 2 show predominant efficiency with high regioselectivity and excellent recyclability.Furthermore,solid 1-3 all have luminescent characteristics under a UV lamp.As the temperature increases,the luminous intensity decreases.4 and 5 are stable in different pH solutions.The electrocatalytic performances of 4 and 5 were examined.Both of them show efficiency for reduction of sodium bromate and oxidation of ascorbic acid.