Jump to main content
Jump to site search


Design and Synthesis of Functionalized Coordination Polymers as Recyclable Heterogeneous Photocatalysts

Abstract

The functionalized ligand 9,10-anthraquinone-1,4-dicarboxylate acid (H2AQDC), has been designed and synthesized in order to develop metal-organic coordination polymers as heterogeneous catalyst with photosensitizing feature. Two major considerations of ligand design are anthraquinone moieties for photosensitizing to harvest light and carboxylate groups for polymeric coordination toward less solubility. A series of transition metal complexes based on this ligand have been synthesized subsequently, namely {Co(AQDC)(H2O)3·2H2O}n (Co-AQDC), {Ni(AQDC)(H2O)3·2H2O}n (Ni-AQDC), {[Cu(AQDC)(H2O)3][Cu(AQDC)(H2O)2(DMF)]·(H2O)4}n (Cu-AQDC), {Zn1.5(AQDC)(OH)(H2O)2·H2O}n (Zn-AQDC), {Ag2(AQDC)(CH3OH)}n (Ag-AQDC). Both the ligand itself and its transition metal complexes are able to catalyze the visible-light driven oxidation reactions of alkynes into 1,2-di-ketones in air under mild conditions, in which compound Ni-AQDC demonstrates the best activity. This catalyst can be easily isolated from the reaction mixture by filtration with trace amount of loss in solution and is ready for recycled use after simple washing and drying without any need for regeneration. Remarkably, the catalyst shows no loss of activity after five catalytic cycles and X-ray powder diffraction proves no change of structure after five runs. This designed metal-organic coordination polymer represents an environmentally friendly economic and recyclable photocatalyst, constituting a good candidate for photocatalytic organic syntheses in terms of green chemistry.

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Mar 2018, accepted on 09 Apr 2018 and first published on 09 Apr 2018


Article type: Paper
DOI: 10.1039/C8DT00902C
Citation: Dalton Trans., 2018, Accepted Manuscript
  •   Request permissions

    Design and Synthesis of Functionalized Coordination Polymers as Recyclable Heterogeneous Photocatalysts

    C. Ye, G. Xu, Z. Wang, J. Han, L. Xue, F. Cao, Q. Zhang, L. Yang, L. Lin and X. Chen, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT00902C

Search articles by author

Spotlight

Advertisements