Abstract
The coordination polymers constructed by carboxylate ligand have shown novel structures and excellent properties. Therefore, a new Ca(II) coordination polymer with 2-carboxybenzaldehyde ligand, [Ca(L)2(H2O)2]n (L = 2-carboxybenzaldehyde), has been synthesized. Its structure has been identified by elemental analysis, FT-IR, and single-crystal X-ray diffraction technique. The Ca(II) coordination polymer exhibits a 1D chained structure by the bridging effect of carboxylate groups. The Ca(II) coordination polymer exhibited relatively good catalytic activity in the benzyl alcohol oxidation reaction with benzyl alcohol conversion (53.8%) and moderate benzaldehyde selectivity (83.3%).
Highlights
Metal coordination polymers have attracted much attention in recent years, which is due to their novel structures and potential applications in luminescence, catalysis, magnetism, gas storage, and biological activity [1,2,3,4,5,6,7,8,9,10,11,12,13,14]
The Ca(II) coordination polymer exhibited relatively good catalytic activity in the benzyl alcohol oxidation reaction with benzyl alcohol conversion (53.8%) and moderate benzaldehyde selectivity
The coordination polymers were mainly composed by transition metal ions and rare earth metal ions with organic ligands [15,16,17,18]
Summary
Metal coordination polymers have attracted much attention in recent years, which is due to their novel structures and potential applications in luminescence, catalysis, magnetism, gas storage, and biological activity [1,2,3,4,5,6,7,8,9,10,11,12,13,14]. The study on structure and property of alkaline earth coordination polymers are relatively few. Our group has been working on the synthesis and catalytic properties of cheap and environmentally friendly catalysts [23,24,25,26,27]. We reported a new Ca(II) coordination polymer, [Ca(L) (H2 O)2 ]n , and its application in aerobic oxidation of benzyl alcohol as catalyst. The chemical diagram of the Ca(II) coordination polymer is shown in Scheme 1. The chemical diagram of the Ca(II) coordination polymer
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