A threefold interpenetrating two‐dimensional zinc(II) coordination polymer: synthesis, crystal structure and selective luminescence sensing properties

• Published in: Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2019-07, Vol.75 (7), p.979-984
• Main Authors: Pan, Chen-Dong, Wang, Jun, Xu, Ju-Qin, Zhang, Kang-Feng, Wang, Xiao-Wan
• Format: Article
• Language: English
• Subjects: 4,4′‐bis(2‐methylimidazol‐1‐yl)diphenyl ether; 4,4′‐sulfonyldibenzoic acid; Aqueous solutions; Biological activity; Chemical synthesis; Coordination polymers; Crystal structure; Ferric ions; Infrared analysis; Iron; iron deficiency; iron(III); iron(III) sensing; luminescence sensing; Polymers; Query languages; Thermal analysis; threefold interpenetration; two‐dimensional coordination polymer; X-ray diffraction; Zinc; Zinc coordination; zinc(II)
• ISSN: 2053-2296; 0108-2701; 2053-2296; 1600-5759
• DOI: 10.1107/S2053229619008635

The Fe3+ ion is the most important element in environmental systems and plays a fundamental role in biological processes. Iron deficiency can result in diseases and highly selective and sensitive detection of trace Fe3+ has become a hot topic. A novel two‐dimensional ZnII coordination framework, poly[[μ‐4,4′‐bis(2‐methylimidazol‐1‐yl)diphenyl ether‐κ2N3:N3′](μ‐4,4′‐sulfonyldibenzoato‐κ2O:O′)zinc(II)], [Zn(C14H8O6S)(C20H18N4O)]n or [Zn(SDBA)(BMIOPE)]n, (I), where H2SDBA is 4,4′‐sulfonyldibenzoic acid and BMIOPE is 4,4′‐bis(2‐methylimidazol‐1‐yl)diphenyl ether, has been prepared and characterized by IR, elemental analysis, thermal analysis and X‐ray diffraction analysis, the latter showing that the coordination polymer exhibits a threefold interpenetrating two‐dimensional 44‐sql network. In addition, it displays a highly selective and sensitive sensing for Fe3+ ions in aqueous solution. A zinc(II) compound, prepared by the reaction of Zn(NO3)2·6H2O with 4,4′‐sulfonyldibenzoic acid and 4,4′‐bis(2‐methylimidazol‐1‐yl)diphenyl ether in H2O, possesses a threefold interpenetrating two‐dimensional 44‐sql network and exhibits a highly selective and sensitive sensing for Fe3+ ions in aqueous solution.