Issue 6, 2021

Luminescence sensing and photocatalytic activities of four Zn(ii)/Co(ii) coordination polymers based on a pyridinephenyl bifunctional ligand

Abstract

Based on a novel pyridinephenyl bifunctional ligand of 5-(6-carboxypyridin-2-yl)benzene-1,3-dicarboxylic acid (H3L), four Zn(II)/Co(II) coordination polymers (CPs), {[Zn(BIMB)(HL)]·H2O}n (1), [Co(BIMB)(HL)(H2O)]n (2), {[Zn2(BIBP)2(HL)2]·2H2O}n (3), and {[Co3(BIBP)3(L)2(H2O)2]·5H2O}n (4), have been constructed with the introduction of two length-suitable bis(imidazole) linkers (BIMB = 4,4-bis(imidazol-1-ylmethyl)biphenyl; BIBP = 4,4-bis(imidazol-1-yl)diphenyl). Structural analysis shows that CP 1 exhibits a 2D wave 4-c {44·62} sql sheet, and CP 2 shows an interesting 2D + 2D → 2D interpenetrating structure with ABAB sql packing. CP 3 displays an unprecedented 3D (4,4)-c {42·83·10}-tcj net. CP 4 presents a 2D (3,4,4)-c {62·7·82·10}{62·73·8}2{63}2 trilayer structure reported for the first time. Luminescence sensing exploration reflected two luminescent Zn(II) CPs possessing excellent performances in sensing Fe3+ cation, Cr2O72−/CrO42− anions, and NFT/NZF antibiotics in aqueous solution. Besides, the four obtained CPs also demonstrated outstanding potential as photocatalysts in the degradation of methylene blue (MB).

Graphical abstract: Luminescence sensing and photocatalytic activities of four Zn(ii)/Co(ii) coordination polymers based on a pyridinephenyl bifunctional ligand

Supplementary files

Article information

Article type
Paper
Submitted
15 déc. 2020
Accepted
11 janv. 2021
First published
12 janv. 2021

CrystEngComm, 2021,23, 1497-1506

Luminescence sensing and photocatalytic activities of four Zn(II)/Co(II) coordination polymers based on a pyridinephenyl bifunctional ligand

Y. Xue, C. Zhang, J. Q. Lv, N. Chen, J. Wang, X. Chen and L. Fan, CrystEngComm, 2021, 23, 1497 DOI: 10.1039/D0CE01812K

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